Signal Relays ( 2A or less )
TX-S RELAYS
Product Catalog
2022.4
Signal Relays (2A or less)
TX-S
RELAYS
High sensitivity, 50 mW operating power, 2 Form C and 1A relays
FEATURES
Protective construction：Sealed type
15
2 types of terminal shapes:
PC board terminal and Surface-mount terminal
Ag+Au clad contact and AgPd contacts suitable for
use in low level load analog circuits
High sensitivity: Rated operating power 50 mW
(Single side stable)
Low thermal electromotive force: Approx. 0.3 μV
Compliant with Telcordia standard: Surge withstand
voltage 2,500 V (between contact and coil)
Confort to FCC Part68: Surge withstand voltage
1,500 V (between open contacts)
7.4
8.2
7.4
15
8.4
TYPICAL APPLICATIONS
Telecommunication equipment and modem
Medical and security equipment
（Unit：mm）
ORDERING INFORMATION (PART NO. : Ordering part number for Japanese market)
ATXS 2
Terminal shape / Operating function
0： Standard PC board terminal type or
Surface-mount terminal
Single side stable
1： Standard PC board terminal type or
Surface-mount terminal
1 coil latching
2： Standard PC board terminal type or
Surface-mount terminal
2 coil latching (L2)*5
6： Standard PC board terminal type or
Surface-mount terminal
2 coil latching (LT)
Contact material
Nil：Standard contact（Ag+Au clad）
20：AgPd contact（low level load）
;
（stationary）
,
AgPd+Au clad
（movable）
AgPd
Rated coil voltage (DC)
0 : 1.5 V, 1 : 3 V, 2 : 6 V,
4 : 24 V, 6 : 4.5 V, 7 : 9 V,
3 : 12 V,
Packing style*2
Nil ：Tube packing
X ：Tape and reel（picked from 1/3/4/5-pin side）
Z ：Tape and reel packing（picked from the 8/9/10/12-pin side）
W ：Tape and reel packing（picked from 1/3/4/5-pin side）
With humidity indicator and silica gel in moisture proof bag*3
Y ：Tape and reel packing（picked from 8/9/10/12-pin side）
With humidity indicator and silica gel in moisture proof bag*3
Surface-mount type
Nil：Standard PC board terminal type
SA：SA type
SS：SS type
Contact arrangement
2：2 Form C
*1: Please contact our sales representative for detailed specifications when using L2 of the operation function.
*2: The“W”and“Y”at the end of the part number only appears on the inner and outer packing.
It does not appear on the relay itself.
*3: Each reel is packed with humidity indicators and silica gel in the moisuture proof pack.
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Panasonic Industry Co., Ltd. 2022
ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
ORDERING INFORMATION (TYPE NO. : Ordering part number for non Japanese market)
TXS 2
Contact material
Nil：Standard contact（Ag+Au clad）
1 ：AgPd contact（low level load）;
AgPd+Au clad（stationary）,
AgPd（movable）
Surface-mount type
Nil：Standard PC board terminal type
SA：SA type
SS：SS type
Rated coil voltage（DC）
1.5, 3, 4.5, 6, 9, 12, 24 V
Contact arrangement
2：2 Form C
Packing style*2
Nil ：Tube packing
X ：Tape and reel（picked from 1/3/4/5-pin side）
Z ：Tape and reel packing（picked from the 8/9/10/12-pin side）
W ：Tape and reel packing（picked from 1/3/4/5-pin side）
With humidity indicator and silica gel in moisture proof bag*3
Y ：Tape and reel packing（picked from 8/9/10/12-pin side）
With humidity indicator and silica gel in moisture proof bag*3
Operating function
Nil ：Single side stable
LT ：2 coil latching (SET = 1.6 Pin)*1
L2：2 coil latching (SET = 1.12 Pin)
*1: Please contact our sales representative for detailed specifications when using L2 of the operation function.
*2: The“W”and“Y”at the end of the part number only appears on the inner and outer packing.
It does not appear on the relay itself.
*3: Each reel is packed with humidity indicators and silica gel in the moisuture proof pack.
TYPES
" Type No. " is ordering part number for non Japanese market. " Part No. " is ordering part number for Japanese market.
PC board terminal
Tube packing
Contact
arrangement
2 coil latching (LT)
Type No.
Part No.
Type No.
Part No.
1.5 V DC
TXS2-1.5V
ATXS200
TXS2-LT-1.5V
ATXS260
TXS2-3V
ATXS201
TXS2-LT-3V
ATXS261
TXS2-4.5V
ATXS206
TXS2-LT-4.5V
ATXS266
6 V DC
TXS2-6V
ATXS202
TXS2-LT-6V
ATXS262
9 V DC
TXS2-9V
ATXS207
TXS2-LT-9V
ATXS267
12 V DC
TXS2-12V
ATXS203
TXS2-LT-12V
ATXS263
24 V DC
TXS2-24V
ATXS204
TXS2-LT-24V
ATXS264
3 V DC
4.5 V DC
2 Form C
Single side stable
Rated coil
voltage
Standard packing
Carton
(1 Tube packing)
Outer
carton
40 pcs.
1,000 pcs.
Note: Please add “-1” to the end of the type number or “20” to the end of the part number for AgPd contacts (low level load).
Surface-mount terminal
SA Type: Tube packing
Contact
arrangement
Type No.
1.5 V DC
3 V DC
4.5 V DC
2 Form C
Single side stable
Rated coil
voltage
2 coil latching (LT)
Part No.
Type No.
Part No.
TXS2SA-1.5V
ATXS200SA
TXS2SA-LT-1.5V
ATXS260SA
TXS2SA-3V
ATXS201SA
TXS2SA-LT-3V
ATXS261SA
TXS2SA-4.5V
ATXS206SA
TXS2SA-LT-4.5V
ATXS266SA
6 V DC
TXS2SA-6V
ATXS202SA
TXS2SA-LT-6V
ATXS262SA
9 V DC
TXS2SA-9V
ATXS207SA
TXS2SA-LT-9V
ATXS267SA
12 V DC
TXS2SA-12V
ATXS203SA
TXS2SA-LT-12V
ATXS263SA
24 V DC
TXS2SA-24V
ATXS204SA
TXS2SA-LT-24V
ATXS264SA
Standard packing
Carton
(1 Tube packing)
Outer carton
40 pcs.
1,000 pcs.
Note: Please add “-1” to the end of the type number or “20” to be added in front of “surface-mount type” in part number for AgPd contacts (low level load).
SA Type: Tape and reel packing: Z
Contact
arrangement
2 coil latching (LT)
Type No.
Part No.
Type No.
Part No.
1.5 V DC
TXS2SA-1.5V-Z
ATXS200SAZ
TXS2SA-LT-1.5V-Z
ATXS260SAZ
TXS2SA-3V-Z
ATXS201SAZ
TXS2SA-LT-3V-Z
ATXS261SAZ
TXS2SA-4.5V-Z
ATXS206SAZ
TXS2SA-LT-4.5V-Z
ATXS266SAZ
6 V DC
TXS2SA-6V-Z
ATXS202SAZ
TXS2SA-LT-6V-Z
ATXS262SAZ
9 V DC
TXS2SA-9V-Z
ATXS207SAZ
TXS2SA-LT-9V-Z
ATXS267SAZ
12 V DC
TXS2SA-12V-Z
ATXS203SAZ
TXS2SA-LT-12V-Z
ATXS263SAZ
24 V DC
TXS2SA-24V-Z
ATXS204SAZ
TXS2SA-LT-24V-Z
ATXS264SAZ
3 V DC
4.5 V DC
2 Form C
Single side stable
Rated coil
voltage
Standard packing
Carton
(1 Reel)
Outer carton
500 pcs.
1,000 pcs.
Notes: 1. Please add “-1” to the end of the type number or “20” to be added in front of “surface-mount type” in part number for AgPd contacts (low level load).
2. For taping packaging X, W, and Y, change “Z” at the end of the part number to “X”, “W”, and “Y”.
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ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
RATING
Coil data
• Operating characteristics such as “Operate voltage” and “Release voltage” are influenced by mounting conditions or ambient
temperature, etc.
Therefore, please use the relay within ± 5% of rated coil voltage.
• “Initial” means the condition of products at the time of delivery.
Single side stable
Rated coil
voltage
Operate voltage*
(at 20°C)
Release voltage*
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
1.5 V DC
33.3 mA
45 Ω
3 V DC
16.7 mA
180 Ω
11.1 mA
405 Ω
8.3 mA
720 Ω
4.5 V DC
6 V DC
9 V DC
Max. 80% V of
rated coil voltage
(Initial)
Min. 10% V of
rated coil voltage
(Initial)
Rated operating power
50 mW
Max. allowable
voltage
(at 20°C)
150% V of
rated coil voltage
5.6 mA
1,620 Ω
12 V DC
4.2 mA
2,880 Ω
24 V DC
2.9 mA
8,229 Ω
70 mW
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Rated operating power
*square, pulse drive
2 coil latching
Rated coil
voltage
Set voltage*
(at 20°C)
Reset voltage*
(at 20°C)
1.5 V DC
3 V DC
4.5 V DC
6 V DC
9 V DC
Max. 80% V of
rated coil voltage
(Initial)
Max. 80% V of
rated coil voltage
(Initial)
Set coil
Reset coil
Set coil
Reset coil
46.7 mA
46.7 mA
32.1 Ω
32.1 Ω
23.3 mA
23.3 mA
129 Ω
129 Ω
15.6 mA
15.6 mA
289 Ω
289 Ω
11.7 mA
11.7 mA
514 Ω
514 Ω
7.8 mA
7.8 mA
1,157 Ω
1,157 Ω
12 V DC
5.8 mA
5.8 mA
2,057 Ω
2,057 Ω
24 V DC
6.3 mA
6.3 mA
3,840 Ω
3,840 Ω
Set coil
Reset coil
70 mW
70 mW
150 mW
150 mW
Max. allowable
voltage
(at 20°C)
150% V of
rated coil voltage
*square, pulse drive
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ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
Specifications
Specifications
Item
Contact data
Standard contact
Contact arrangement
2 Form C
Contact resistance
(initial)
Max. 100 mΩ (by voltage drop 6 V DC 1 A)
Contact material
Ag+Au clad
Contact rating
(resistive)
1 A 30 V DC
Max. switching power
(resistive)
30 W (DC)
Max. switching voltage
110 V DC
Max. switching current
1 A (DC)
Min. switching load
(reference value)*1
10 μA 10 mV DC
Insulation resistance (initial)
Between open contacts
AgPd contact (low level load)
AgPd+Au clad (stationary), AgPd (movable)
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength.)
750 Vrms for 1 min (detection current: 10 mA)
Dielectric
Between contact and
strength (initial) coil
1,800 Vrms for 1 min (detection current: 10 mA)
Between contact sets
1,000 Vrms for 1 min (detection current: 10 mA)
Between open contacts
1,500 V 10 × 160 μs
Between contact and
coil
2,500 V 2 × 10 μs
Time
characteristics
(initial)
Operate (Set) time
Max. 5 ms at rated coil voltage (at 20°C, without bounce)
[Max. 5 ms (at 20°C, without bounce)]
Release (Reset) time
Max. 5 ms at rated coil voltage (at 20°C, without bounce, without diode)
[Max. 5 ms (at 20°C, without bounce)]
Shock
resistance
Functional
750 m/s2 (half-sine shock pulse: 6 ms, detection time: 10 μs)
Destructive
1,000 m/s2 (half-sine shock pulse: 6 ms)
Vibration
resistance
Functional
10 to 55 Hz (at double amplitude of: 3.3 mm, detection time: 10 μs)
Destructive
10 to 55 Hz (at double amplitude of: 5 mm)
Expected life
Mechanical life
Min. 50 x 106 ope. (Switching frequency: at 180 times/min)
Conditions
Conditions for usage,
transport and storage*2
Ambient temperature:
–40 to +70°C (Allowable temperature is from –40 to +70°C at our standard packing condition.)
Humidity: 5 to 85% RH (Avoid icing and condensation)
Surge
withstand
voltage (initial)
Unit weight
Approx. 2 g
Note: For AC load, please inquire our sales office for details.
*1. This value is a rough indication of the lower limit at which switching is possible at micro load level.
This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.
AgPd contact is recommended for low level load (Max. 10 V DC, 10 mA level).
*2. For ambient temperature, please refer to the “GUIDELINES FOR RELAY USAGE”.
Electrical life
Conditions: resistance load, switching frequency at 20 times / minute.
Type
2 Form C
Standard contact
AgPd contact (low level load)
Switching capacity
1 A 30 V DC
Number of operations
Min. 200 x 103 ope.
Min. 100 x 103 ope.
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ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
REFERENCE DATA
2. Switching life curve
No. of operations, ×104
Contact current, A
1. Max. switching capacity
1
DC resistive load
（cosφ＝1）
0.5
0.4
0.3
100
30V DC resistive load
10
0.2
0
30
0
100
Contact voltage, V
3-1.Coil temperature rise value (Average)
Tested sample：TXS2-4.5V, 6 pcs.
Point measured：Inside the coil
Ambient temperature：25°
C, 70°
C
30
Room temperature
C
+70°
1A
1A
0A
0A
10
0
100
110 120 130 140 150
Coil applied voltage, ％V
Tested sample：TXS2-4.5V, 5 pcs.
Ave.
Ave.
0
-20
-30
-40
60 80 100
Ambient
temperature, ℃
Ratio against the rated voltage, %V
Rate of
change, %
Release
20 voltage
-10
0
100
110 120 130 140 150
Coil applied voltage, ％V
160
100
10
Operate
voltage
0A
10
Tested sample：TXS2-4.5V, 10 pcs.
Operating speed：180 cpm
30
20 40
1A
1A
0A
5. Mechanical life
40
-40 -20
Room temperature
C
+70°
20
0
160
4. Ambient temperature characteristics
(Average)
-60
0.5
1
Switching capacity, A
Tested sample：TXS2-24V, 6 pcs.
Point measured：Inside the coil
Ambient temperature：25°
C, 70°
C
20
0
0
3-2.Coil temperature rise value (Average)
Temperature rise, °
C
Temperature rise, °
C
30
0
200
90
80
Operate voltage
70
60
Max.
Min.
50
40
30
Release voltage
20
Max.
10
0
Min.
0
10
100
1,000 5,000
No. of operations, ×104
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ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
6. Electrical life test (1 A 30 V DC resistive load)
Ratio against the rated voltage, %V
Change of operate and release voltage
Change of contact resistance
100
100
90
90
80
Operate voltage
70
Max.
Min.
60
50
40
30
Release voltage
20
Contact resistance, mΩ
Tested sample：TXS2-4.5V, 6 pcs.
Operating speed：20 cpm
Max.
Min.
7-1. Operate and release time
(without diode)
Min.
3
Max.
Min.
0
Tested sample：TXS2-4.5V, 6 pcs.
［m/s2］
1,000 Y
5
10
15
No. of operations, ×104
20
Max.
4
Min.
3
Max.
Min.
2
0
80
8-2. Functional shock (Latching)
［m/s2］
Ｘ’
Y’
Ｘ’
ZＸ
Ｘ’
Z’
Y
Y’
Y’
Tested sample：TXS2-4.5V, 6 pcs.
Y’
9-2. Influence of proximity mounting
9-3. Influence of proximity mounting
Tested sample：TXS2-4.5V, 6 pcs.
15
ON ON
10
ℓ ℓ
Operate voltage
ON
0
OFF OFF
ℓ ℓ
OFF
-10
Reset condition
Set condition
Z
Ｘ’
9-1. Influence of proximity mounting
Release voltage
1,000 Y
Z’
ZＸ
4
90
100
110
120
Coil applied voltage,（%V）
Ｘ
Z’
Y
Rate of change, %
5
Deenergized condition
Energized condition
Z’
Rate of change, %
0
Operate time
Release time
Z
2
0
20
Tested sample：TXS2-LT-4.5V, 6 pcs.
Ｘ
-15
0
10
15
No. of operations, ×104
6
0
90
100
110
120
Coil applied voltage, %V
8-1. Functional shock (Single side stable)
-5
Min.
30
1
80
5
5
6 8 10 12 14 16
Inter-relay distanceℓ, mm
Tested sample：TXS2-4.5V, 6 pcs.
15
ON
10
ℓ
ℓ
5
Operate voltage
ON
ON
0
Release voltage
-5
OFF
ℓ
ℓ
-10
-15
0
Rate of change, %
0
0
OFF
OFF
2
4
6 8 10 12 14 16
Inter-relay distanceℓ, mm
Rate of change, %
1
Rate of change, %
2
Operate and release time,（ms）
Max.
4
Max.
40
10
7
Rate of change, %
Operate and release time, ms
5
50
Tested sample：TXS2-4.5V, 10 pcs.
Operate time
Release time
6
60
7-2. Operate and release time
(with diode)
Tested sample：TXS2-4.5V, 10 pcs.
7
70
20
10
0
80
15
ℓ ℓ
ON
10
Operate voltage
5
ON
ℓ ℓ
Release voltage
-5
ー6ー
OFF
ℓ
OFF
-10
-15
0
ℓ
ON
0
ℓ
OFF
OFF
2
4
6 8 10 12 14 16
Inter-relay distanceℓ, mm
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Panasonic Industry Co., Ltd. 2022
ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
10-1. High frequency characteristics
(Isolation)
10-2. High frequency characteristics
(Insertion loss)
Tested sample：TXS2-4.5V, 2 pcs.
11. Thermal electromotive force
Tested sample：TXS2-4.5V, 2 pcs.
Tested sample：TXS2-4.5V, 10 pcs.
20
Ave.=0.30
100
1
0.8
0
10
DIMENSIONS
100
Frequency, MHz
12
10
6
0.4
4
0.2
2
0
1,000
14
8
0.6
50
0
16
Quantity, n
Insertion loss, dB
Isolation, dB
18
0
10
100
Frequency, MHz
0
1,000
0
0.15
0.25 0.35 0.45 0.55
Thermal electromotive force, μV
Unit: mm
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
PC board terminal
Single side stable
External dimensions
Recommended PC board pattern
(BOTTOM VIEW)
Schematic
(BOTTOM VIEW)
(De-energize)
7.4
CAD
10.16
4
5
12
10 9
Direction indication
8
2.54
0.65
8.2
3.5
0.5
1.15
5.08
2.54
1
＋
5.08
15
3
－
8‒1 dia.
Tolerance：±0.1
0.25
5.08
General tolerance : ±0.3
2 coil latching
External dimensions
Recommended PC board pattern
(BOTTOM VIEW)
7.4
CAD
12.7
Schematic
(BOTTOM VIEW)
(Reset)
(Operation function LT)
4
5
6
12
10 9
Direction indication
8
7
2.54
＋
0.5
1.15
3.5
0.65
8.2
5.08
15
5.08
2.54
10‒1 dia.
Tolerance：±0.1
1
3
－
＋
－
(Operation function L2)
0.25
5.08
1
General tolerance : ±0.3
3 4 5 6
＋
＋
－
－
12
10 9 8 7
Direction indication
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ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
Surface-mount terminal
CAD
Type
Recommended
PC board pattern
(TOP VIEW)
External dimensions
Schematic
(TOP VIEW)
3.16
5.08
1
2.54
10 9
8
3 4
1
Direction indication
5
0.5
1.15
＋
8.4
0.65
8.2
5.08
12
－
7.24
15
0.25
Single side stable
7.4
(De-energize)
Tolerance：±0.1
5.08
9.4±0.5
2.54
SA
General tolerance : ±0.3
(Reset)
7.4
(Operation function LT)
10 9
8
7
1
3 4
Direction indication
5
6
－
12
－
0.5
1.15
5.08
1
2.54
7.24
＋
8.4
0.65
8.2
3.16
15
0.25
2 coil latching
5.08
＋
(Operation function L2)
Tolerance：±0.1
5.08
9.4±0.5
2.54
12
10 9 8 7
＋
＋
－
－
1
General tolerance : ±0.3
3 4 5 6
Direction indication
PACKING STYLE
Unit: mm
Tube packing
1. The relay is packing in a tube with the relay orientation mark
on the left side,as shown in the figure below.
Be sure to maintain relays in the correct orientation when
mounting on PC boards.
2. Conditions for operation, transport and storage : –40 to 70°C.
Orientation（indicates PIN No.1）stripe
Stopper（gray）
Taping packaging
1. Tape dimensions
2. Dimensions of plastic reel
SA Type
21±0.8 dia.
16
TX-S relays
0.4
2±0.5
9.2±0.2
380±2 dia.
4
80±1 dia.
2
15.5
1.5＋ 0.1
0 dia.
11.5 1.75
24±0.3
Relay polarity bar
（Z type）
Stopper（green）
24.4+ 20
2±0.2
Tape coming out direction
13±0.2 dia.
3. Conditions for operation, transport and storage : –40 to 70°C.
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ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
EXAMPLE OF RECOMMENDED SOLDERING CONDITIONS
For cautions for use, please read “Relay Soldering and Cleaning Guidelines” and “SMT Soldering Guidelines”.
PC board terminal
In case of hand soldering, the following conditions should be observed.
The effect on the relay depends on the PC board used. Please verify the actual PC board to be used.
Automatic soldering (Flow)
Hand soldering
Recommended
conditions
Time
Measurement
location
Recommended
conditions
Temperature
Temperature
Time
Measurement
location
Preheating
Max. 120°C
Within 120
seconds
Solder surface
terminal
Soldering
Max. 350°C
Within 3
seconds
Tip temperature
Soldering
260°C ± 5°C
Within 6
seconds
Solder
temperature
Surface-mount terminal
In case of automatic soldering (reflow), the following conditions should be observed.
IRS (infrared reflow soldering method) heating conditions
Recommend conditions
Number of reflow
1 time
Measuring position
Surface of PC board where relay is mounted.
t4
T3
T2
T1
t1
t2
t3
t 1=60s to 120s
t 2=within 20s
t 3=within 30s
C）
t 4=within 10s（245 to 250°
T1=150 to 180°
C
C and higher
T2=230°
C max
T3=250°
Mounting cautions
Cautions to observe when mounting temperature increases
in the relay are greatly dependent on the way different parts
are located a PC board and the heating method of the reflow
device. Therefore, please conduct testing on the actual
device beforehand after making sure the parts soldered on
the relay terminals and the top of the relay case are within the
temperature conditions.
Measuring position of temperature profile
Note
Note：The soldering temperature profile
indicates the pad temperature. In
some cases, the ambient
temperature may be greatly
increased. Check for the specific
mounting condition.
Other things to observe
• Exceeding the stipulated conditions when soldering may
affect coaxial switch performance. Be sure to consult us
beforehand.
• Since thermal stress on a relay will depend on the PC board
and process conditions, please be sure to test using the
actual PC board.
SAFETY STANDARDS
• Creep-up, wettability and solder strength will differ depending
on changes in the mounting conditions and type of solder.
Please evaluate based on actual production conditions.
• Only apply coating after the relay has returned to room
temperature.
Each standard may be updated at any time, so please check our Website for the latest information.
UL/C-UL (Approved)
File No.
E43149
CSA (Approved)
Operations
Ambient
temperature
1 A 30 V DC Resistive
100 × 103
40°C
0.5 A 125 V AC Resistive
100 × 103
40°C
0.3 A 110 V DC Resistive
30 × 103
40°C
Contact rating
CSA standard approved by C-UL.
BSI (Approved)
BSI standard approved by File No. VC648943
(basic insulation).
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー9ー
Panasonic Industry Co., Ltd. 2022
ASCTB15E 202204
Signal Relays (2A or less) TX-S RELAYS
GUIDELINES FOR USAGE
or cautions for use, please read “GUIDELINES FOR SIGNAL RELAYS USAGE” and “GUIDELINES FOR RELAY
F
USAGE”.
Cautions for usage of TX-S relay
Latching
• Use latching when conditions involve continuous carrying
current.
• Regarding the set and reset pulse time, for the purpose of
reliable operation under ambient temperature fluctuations and
different operating conditions, we recommend setting the coil
applied set and reset pulse time to 10 ms or more at the rated
coil voltage.
• The relay is shipped in the reset position. But jolts during
transport or impacts during installation can change the reset
position. It is, therefore, advisable to build a circuit in which the
relay can be initialized (set and reset) just after turning on the
power.
External magnetic field
Since TX-S relays are highly sensitive polarized relays, their
characteristics will be af ected by a strong external magnetic
field. Avoid using the relay under that condition.
recautions for usage of automatic insertion machine
P
Set the chucking pressure of the pick-up mechanism by the
automatic mounting machine with the pressure shown in
table 1 to maintain the internal function of the relay.
E
A
D
C
B
Please chuck the portion.
Avoid chucking the center of the
relay. In addition, excessive
chucking pressure to the pinpoint of
the relay should be also avoided.
Table 1: Chucking pressure
A, B and D direction
Max. 9.8 N (1 kgf)
C and E direction
Max. 4.9 N (500 gf)
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー 10 ー
Panasonic Industry Co., Ltd. 2022
ASCTB15E 202204
GUIDELINES FOR SIGNAL RELAYS USAGE
For cautions for use, please read "GUIDELINES FOR RELAY USAGE".
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
PRECAUTIONS FOR COIL INPUT
Long term current carrying
Maximum allowable voltage and temperature rise
A circuit that will be carrying a current continuously for
long periods without relay switching operation. (circuits for
emergency lamps, alarm devices and error inspection that, for
example, revert only during malfunction and output warnings
with form B contacts)
Continuous,long-term current to the coil will facilitate
deterioration of coil insulation and characteristics due to
heating of the coil itself. For circuits such as these, please use
a magnetic-hold type latching relay. If you need to use a single
stable relay, use a sealed type relay that is not easily affected
by ambient conditions and make a failsafe circuit design that
considers the possibility of contact failure or disconnection.
Proper usage requires that the rated coil voltage be impressed
on the coil.
Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the coil
may burn or its layers short due to the temperature rise.
Furthermore, do not exceed the usable ambient temperature
range listed in the catalog.
DC Coil operating power
Steady state DC current should be applied to the coil.
The wave form should be rectangular. If it includes ripple, the
ripple factor should be less than 5%. However, please check
with the actual circuit since the electrical characteristics may
vary.
The rated coil voltage should be applied to the coil and the
set/reset pulse time of latching type relay differs for each
relays, please refer to the relay's individual specifications.
Operate voltage change due to coil temperature rise (hot start)
In DC relays, after continuous passage of current in the coil, if
the current is turned OFF, then immediately turned ON again,
due to the temperature rise in the coil, the operate voltage will
become somewhat higher. Also, it will be the same as using it
in a higher temperature atmosphere.
The resistance/temperature relationship for copper wire is
about 0.4% for 1°C, and with this ratio the coil resistance
increases.
That is, in order to operate of the relay, it is necessary that the
voltage be higher than the operate voltage and the operate
voltage rises in accordance with the increase in the resistance
value.
However, for some polarized relays, this rate of change is
considerably smaller.
Coil connection
When connecting coils of polarized relays, please check coil
polarity(+,-) at the internal connection diagram (Schematic).
If any wrong connection is made, it may cause unexpected
malfunction, like abnormal heat, fire and so on, and circuit do
not work.
Avoid impressing voltages to the set coil and reset coil at the
same time.
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Panasonic Industry Co., Ltd. 2022
ASCTB414E 202204
GUIDELINES FOR SIGNAL RELAYS USAGE
NOTES
Usage, Storage, and Transport Conditions
During usage, storage, or transportation, avoid locations
subject to direct sunlight and maintain normal temperature,
humidity, and pressure conditions.
The allowable specifications for environments suitable for
usage, storage, and transportation are given below.
1) Temperature: The allowable temperature range differs for
each relay, so refer to the relay’s individual specifications.
In addition, when transporting or storing relays while they are
tube packaged, there are cases when the temperature may
differ from the allowable range. In this situation, be sure to
consult the individual specifications.
2) Humidity: 5 to 85% RH
The humidity range varies with the temperature.
Use within the range indicated in the graph.
(The allowable temperature depends on the relays.)
Icing
Condensation or other moisture may freeze on relays when
the temperature become lower than 0°C.
This icing causes the sticking of movable portion, the operation
delay and the contact conduction failure etc.
Panasonic Industry Co., Ltd. does not guarantee the failures
caused by the icing.
The heat conduction by the equipment may accelerate the
cooling of relay itself and the icing may occur.
Please conduct product evaluations in the worst condition of
the actual usage.
Humidity (％ RH)
85
Allowable range
Avoid icing
when used at
temperatures
lower than 0°C
Avoid condensation when
used at temperatures higher
than 0°C
5
-40
0
Ambient temperature (℃)
Condensation
Condensation occurs when the ambient temperature drops
suddenly from a high temperature and humidity, or the relay
and microwave device is suddenly transferred from a low
ambient temperature to a high temperature and humidity.
Condensation causes the failures like insulation deterioration,
wire disconnection and rust etc.
Panasonic Industry Co., Ltd. does not guarantee the failures
caused by condensation.
The heat conduction by the equipment may accelerate the
cooling of device itself, and the condensation may occur.
Please conduct product evaluations in the worst condition of
the actual usage. (Special attention should be paid when high
temperature heating parts are close to the device. Also please
consider the condensation may occur inside of the device.)
85
Low temperature and low humidity
The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of
time.
3) Pressure: 86 to 106 kPa
High temperature and high humidity
Storage for extended periods of time (including transportation
periods) at high temperature or high humidity levels or in
atmospheres with organic gases or sulfide gases may cause a
sulfide film or oxide film to form on the surfaces of the contacts
and/or it may interfere with the functions.
Check out the atmosphere in which the units are to be stored
and transported.
Package
In terms of the packing format used, make every effort to keep
the effects of moisture, organic gases and sulfide gases to the
absolute minimum.
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ー 12 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202204
GUIDELINES FOR SIGNAL RELAYS USAGE
Storage requirements
Since the surface-mount terminal type is sensitive to humidity
it is packaged with tightly sealed anti-humidity packaging.
However, when storing, please be careful of the following.
1) Please use promptly once the anti-humidity pack is opened.
(within 72 hours, Max. 30°C / 70% RH).
If left with the pack open, the relay will absorb moisture which
will cause thermal stress when reflow mounting and thus
cause the case to expand. As a result, the seal may break.
2) If relays will not be used within 72 hours, please store relays
in a humidity controlled desiccator or in an anti-humidity bag
to which silica gel has been added.
4) The following cautionary label is affixed to the anti-humidity
pack.
* If the relay is to be soldered after it has been exposed to excessive humidity
atmosphere, cracks and leaks can occur.
Be sure to mount the relay under the required mounting conditions.
3) When relays (which is packaged with humidity indicator and
silica gel) meeting one of below criteria, please bake (dry)
before use.
When the storage conditions specified in 1) are exceeded.
When humidity indicator is in Ⅲ or Ⅳ status according to
judgement standard.
Silicon
When a source of silicone substances (silicone rubber, silicone
oil,silicone coating materials and silicone filling materials
etc.) is used around the relay, the silicone gas (low molecular
siloxane etc.) may be produced
This silicone gas may penetrate into the inside of the relay.
When the relay is kept and used in this condition, silicone
compound may adhere to the relay contacts which may cause
the contact failure.
Do not use any sources of silicone gas around the relay
(Including plastic seal types).
Please check humidity indicator color and decide if baking is
necessary or not.
● : indicate brown, ○ : Other than brown (blueish color)
Ⅰ
Ⅱ
Ⅲ
Ⅳ
5%
10%
60%
●
○
○
○
●
●
○
○
●
●
●
○
Bake treatment
necessity judgment
NOx Generation
When relay is used in an atmosphere high in humidity to
switch a load which easily produces an arc, the NOx created
by the arc and the water absorbed from outside the relay
combine to produce nitric acid.
This corrodes the internal metal parts and adversely affects
operation.
Avoid use at an ambient humidity of 85% RH or higher (at
20°C).
If use at high humidity is unavoidable, please contact our sales
representative.
No need to bake
No need to bake
Need to bake
Need to bake
Spot
5%
10%
60%
Humidity indicator card
With reel : 45°C, 96 hours or more.
Without reel (including relay only) : 60°C, 35 hours or more.
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ー 13 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202204
GUIDELINES FOR SIGNAL RELAYS USAGE
OTHERS
Cleaning
1) Although the environmentally sealed type relay (plastic sealed
type,etc.) can be cleaned, avoid immersing the relay into cold
liquid (such as cleaning solvent) immediately after soldering.
Doing so may deteriorate the sealing performance.
2) Surface-mount terminal type relay is sealed type and it can be
cleaned by immersion.
Use pure water or alcohol-based cleaning solvent.
3) Cleaning with the boiling method is recommended (The
temperature of cleaning liquid should be 40°C or lower). Avoid
ultrasonic cleaning on relays.
Use of ultrasonic cleaning may cause breaks in the coil or
slight sticking of the contacts due to the ultrasonic energy.
Please refer to "the latest product specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
Panasonic Industry Co., Ltd. Electromechanical Control Business Division
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ー 14 ー
Panasonic Industry Co., Ltd. 2022
ASCTB414E 202204
Electromechanical Control Business Division
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
industral.panasonic.com/ac/e/
©Panasonic Industry Co., Ltd. 2022
Specifications are subject to change without notice.
ASCTB15E 202204
2022.4
工商网监
湘ICP备2023018690号
