AN
T
C- *R
Q1 oH
01 S a
CO nd
M
PL
I
AE
**
AUTOMOTIVE
GRADE
A
53820505
2
Features
Applications
■ Superior circuit protection
■ Voice / VDSL cards
■ Overcurrent and overvoltage protection
■ Protection modules and dongles
■ Blocks surges up to rated limits
■ Process control equipment
■ High-speed performance
■ Test and measurement equipment
■ Small SMT package
■ General electronics
■ Agency listing:
■ RoHS* and AEC-Q101 compliant**
TBU-CA-Q Series - TBU® High-Speed Protectors
General Information
Additional Information
®
®
The TBU-CA-Q Series of Bourns TBU
Line In/
products are low capacitance single
Line Out
bidirectional high-speed protection
components, constructed using MOSFET
semiconductor technology, and designed
to protect against faults caused by short
circuits, AC power cross, induction and lightning surges.
Line Out/
Line In
TBU® Device
Click these links for more information:
PRODUCT TECHNICAL INVENTORY SAMPLES
SELECTOR LIBRARY
CONTACT
Agency Listing
The TBU® high-speed protector placed in the system circuit will monitor the current with
the MOSFET detection circuit triggering to provide an effective barrier behind which
sensitive electronics will not be exposed to large voltages or currents during surge
events up to the device’s specified maximum limits. The TBU® device is provided in a
surface mount DFN package and meets industry standard requirements such as RoHS
and Pb Free solder reflow profiles.
UL
Description
File Number: E315805
Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted)
Symbol
Parameter
Part Number
Value
Unit
Vimp
Peak impulse voltage withstand with duration less than 10 ms
TBU-CA025-050-WH-Q
TBU-CA065-100-WH-Q
TBU-CA065-300-WH-Q
TBU-CA085-500-WH-Q
250
650
650
850
V
Vrms
Continuous A.C. RMS voltage
TBU-CA025-050-WH-Q
TBU-CA065-100-WH-Q
TBU-CA065-300-WH-Q
TBU-CA085-500-WH-Q
100
300
300
425
V
Top
Operating temperature range
-55 to +125
°C
Tstg
Storage temperature range
-65 to +150
°C
Tamax
Maximum ambient temperature
ESD
HBM ESD protection per IEC 61000-4-2
+125
°C
±2
kV
Asia-Pacific: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 885 877 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
**“Q” part number suffix for automotive and other applications requiring appropriate AEC-Q101 compliance.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
TBU-CA-Q Series - TBU® High-Speed Protectors
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)
Symbol
Parameter
Part Number
Min.
Typ.
Max.
Unit
Itrigger
Current required for the device to go from operating state to
protected state
TBU-CA025-050-WH-Q
TBU-CA065-100-WH-Q
TBU-CA065-300-WH-Q
TBU-CA085-500-WH-Q
50
100
300
500
75
150
450
750
100
200
600
1000
mA
Rdevice
Series resistance of
the TBU device
13.3
11.5
7.6
10.7
15.3
13.2
8.8
12.2
Ω
tblock
Time for the device to go from normal operating state to protected state
1
μs
Vimp = 250 V
Vimp = 650 V
Vimp = 650 V
Vimp = 850 V
Itrigger (min.) = 50 mA
Itrigger (min.) = 100 mA
Itrigger (min.) = 300 mA
Itrigger (min.) = 500 mA
TBU-CA025-050-WH-Q
TBU-CA065-100-WH-Q
TBU-CA065-300-WH-Q
TBU-CA085-500-WH-Q
®
IQ
Current through the triggered TBU device with 50 Vdc circuit voltage
®
0.25
0.50
1.00
mA
12
16
20
V
Vreset
Voltage below which the triggered TBU device will transition to normal operating state
Rth(j-l)
Junction to ambient - FR4 using JESD51-3 board
129
°C/W
Rth(j-l)
Junction to ambient - FR4 using JESD51-7 board
40
°C/W
Environmental Characteristics
Parameter
Moisture Sensitivity Level
ESD Classification (HBM)
Value
1
1A
Reference Application
Basic TBU Operation
®
The TBU devices are general use protectors used in a wide
variety of applications. The maximum voltage rating of the TBU®
device should never be exceeded. Where necessary, an OVP
should be employed to limit the maximum voltage. A costeffective protection solution combines Bourns® TBU® protection
devices with a pair of Bourns® MOVs. For bandwidth sensitive
applications, a Bourns® GDT may be substituted for the MOV.
Line Out
/ Line In
Equip.
Line In /
Line Out
Line
TBU ®
Device
OVP
TBU ®
Device
OVP
Line Out
/ Line In
Line In /
Line Out
Line
The TBU® device, constructed using MOSFET semiconductor
technology, placed in the system circuit will monitor the current
with the MOSFET detection circuit triggering to provide an
effective barrier behind which sensitive electronics are not
exposed to large voltages or currents during surge events up
to the device’s specified maximum limits. The TBU® device
operates in approximately 1 μs - once line current exceeds the
TBU® device’s trigger current Itrigger. When operated, the TBU®
device will limit the current to less than the Itrigger value within the
tblock duration. If voltage above Vreset is continuously sustained,
the TBU® device will subsequently reduce the current to a
quiescent current level within a period of time that is dependent
upon the applied voltage.
After the surge, the TBU® device resets when the voltage across
the TBU® device falls to the Vreset level. The TBU® device will
automatically reset on lines which have no DC bias or have DC
bias below Vreset (such as unpowered signal lines).
If the line has a normal DC bias above Vreset, the voltage across
the TBU® device may not fall below Vreset after the surge. In
such cases, special care needs to be taken to ensure that the
TBU® device will reset, with software monitoring as one method
used to accomplish this. Bourns application engineers can
provide further assistance.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
TBU-CA-Q Series - TBU® High-Speed Protectors
Performance Graphs
Typical V-I Characteristics
Typical Trigger Current vs. Temperature
2.0
Normalized Trigger Current
ITRIP
CURRENT
(100 mA/div)
VRESET
VOLTAGE
(5 V/div)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-55 -35 -15
5
25
45
65
85 105 125
Junction Temperature (°C)
Power Derating Curve
Typical Resistance vs. Temperature
2.0
with JESD51-3
with JESD51-7
2.5
1.8
Normalized Resistance
Total Max. Power (W)
3.0
2.0
1.5
1.0
0.5
0.0
20
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
40
60
80
100
120
Junction Temperature (°C)
140
0.0
-55 -35 -15
5
25
45
65
85 105 125
Junction Temperature (°C)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
TBU-CA-Q Series - TBU® High-Speed Protectors
Product Dimensions
0.70
(.028)
0.80
(.031)
0.70
(.028)
1.85
(.073)
0.30
(.012)
6.50 ± 0.10
(.256 ± .004)
4.00 ± 0.10
(.157 ± .004)
XXXXX
YWWLL
PIN 1 & BACKSIDE CHAMFER
SEATING PLANE
DIMENSIONS:
1.85
(.073)
3.40
(.134)
A=
A1 =
0.80 - 1.00
(.031 - .039)
0.00 - 0.05
(.000 - .002)
MM
(INCHES)
0.30
(.012)
C
0.25
PIN 1
(.010)
Pad Designation
Pad #
Pin Out
1
Line In/Out
2
NU
3
Line Out/In
Recommended Pad Layout
TBU® High-Speed Protectors have a 100 % matte-tin
termination finish. For improved thermal dissipation, the
recommended layout uses PCB copper areas which extend
beyond the exposed solder pad. The exposed solder pads
should be defined by a solder mask which matches the pad
layout of the TBU® device in size and spacing. For best
performance, Bourns recommends that solder pads be the
same dimension as the TBU® pads, but if smaller solder pads
are used, they should be centered on the TBU® package
terminal pads and not be more than 0.10-0.12 mm (0.004-0.005
in.) smaller in overall width or length. Solder pad areas should
not be larger than the TBU® pad sizes to ensure adequate
clearance is maintained. The recommended stencil thickness
is 0.10-0.12 mm (0.004-0.005 in.) with a stencil opening size
0.025 mm (0.0010 in.) less than the solder pad size. Extended
copper areas beyond the solder pad significantly improve the
junction to ambient thermal resistance, resulting in operation
at lower junction temperatures with a corresponding benefit of
reliability. All pads should be soldered to the PCB, including
pads marked as NC or NU but no electrical connection should
be made to these pads. For minimum parasitic capacitance,
Bourns recommends that ground or power signals not be routed
beneath any pad.
3
2
1
Dark grey areas show added PCB copper area for better
thermal resistance.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
TBU-CA-Q Series - TBU® High-Speed Protectors
Reflow Profile
Profile Feature
Average Ramp-Up Rate (Tsmax to Tp)
Preheat
- Temperature Min. (Tsmin)
- Temperature Max. (Tsmax)
- Time (tsmin to tsmax)
Time maintained above:
- Temperature (TL)
- Time (tL)
Peak/Classification Temperature (Tp)
Time within 5 °C of Actual Peak Temp. (tp)
Ramp-Down Rate
Time 25 °C to Peak Temperature
Pb-Free Assembly
3 °C/sec. max.
150 °C
200 °C
60-180 sec.
217 °C
60-150 sec.
260 °C
20-40 sec.
6 °C/sec. max.
8 min. max.
How to Order
Typical Part Marking
TBU - CA xxx - yyy - WH - Q
MANUFACTURER’S
TRADEMARK
®
TBU Product
Series
CA = Bi-Series
Impulse Voltage Rating
025 = 250 V
065 = 650 V
085 = 850 V
Trigger Current
050 = 50 mA
100 = 100 mA
300 = 300 mA
500 = 500 mA
XXXXX
YWWLL
5 DIGIT PRODUCT CODE:
• 1ST ALPHA CHARACTER INDICATES PRODUCT FAMILY:
A = TBU-CA SERIES
• 2ND & 3RD DIGITS INDICATE IMPULSE VOLTAGE.
• 4TH & 5TH DIGITS INDICATE TRIGGER CURRENT.
UNDERSCORE DENOTES AEC-Q101 COMPLIANCY.
PIN 1
MANUFACTURING
DATE CODE:
• 1ST DIGIT INDICATES THE YEAR.
• 2ND & 3RD DIGITS INDICATE THE WEEK NUMBER.
• 4TH & 5TH DIGITS INDICATE LOT CODE.
Hold to Trip Ratio Suffix
W = Hold to Trip Ratio
Package Suffix
H = DFN Package
AEC-Q101 Suffix
Q = AEC-Q101 Compliant
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
TBU-CA-Q Series - TBU® High-Speed Protectors
Packaging Specifications
P0
D
t
B
E
P2
F
A
W
N
XXXXX
YWWLL
C
D
B0
R
K0
D1
A0
P
G (MEASURED AT HUB)
EMBOSSMENT
The type of corner on carrier will vary at different assembly sites.
USER DIRECTION OF FEED
QUANTITY: 3000 PIECES PER REEL
A
Min.
326
(12.835)
B
Max.
330
(13.002)
Min.
1.5
(.059)
A0
Min.
4.3
(.169)
B0
Max.
4.5
(.177)
Min.
6.7
(.264)
Max.
1.2
(.047)
Min.
7.9
(.311)
K0
Min.
1.0
(.039)
C
Max.
2.5
(.098)
Min.
12.8
(.504)
D
Max.
13.5
(.531)
D
Max.
6.9
(.272)
Min.
1.5
(.059)
Max.
8.1
(.319)
Min.
3.9
(.159)
P
Min.
20.2
(.795)
—
D1
Max.
1.6
(.063)
Min.
1.5
(.059)
Max.
4.1
(.161)
Min.
1.9
(.075)
P0
G
Ref.
16.5
(.650)
Max.
E
Max.
—
Min.
1.65
(.065)
P2
F
Max.
1.85
(.073)
Min.
7.4
(.291)
Max.
0.5
(.020)
Min.
0.25
(.010)
R
Max.
2.1
(.083)
Min.
0
(0)
N
Ref.
102
(4.016)
Max.
7.6
(.299)
t
Max.
0.35
(.014)
W
Min.
15.7
(.618)
Max.
16.3
(.642)
DIMENSIONS:
MM
(INCHES)
REV. 09/20
“TBU” is a registered trademark of Bourns, Inc. in the United States and other countries.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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