Surface Mount Thermistors
End Banded Chip Thermistor
KR Series 0805 End-Banded Chip Thermistors
Description
Littelfuse surface mount end-banded thermistor elements are
designed for use on hybrid substrates, integrated circuits or printed
circuit boards. They have a solder coated metallization which is
suitable for various contact techniques including wire bond, epoxy
or solder. Since they are manufactured using the most advanced
equipment and technology available, their dimensional parameters
are extremely uniform making the devices especially suitable for
use with automatic handling and placement equipment.
Options
• Non-standard
resistance values
and tolerances
Dimensions
packaging
• Solder coated
metallization
Features
• Surface mountable
• Small size
B
C
A
• Tape and reel
• Low cost
• Nickel Barrier
Part Numbering System
THICKNESS
KR 10 2 D 0 J
Series
SOLDER PLATED
TERMINATIONS
D
BAND WIDTH
Resistance @ 25ºC
Base Value
Multiplier, power of 10
Dimensions shown in inches.
A
0.050”
Max
± 0.008”
0.050"
MAX
No Significance
R-T Curve
Ex. 102 = 10 Ω x 102= 1,000 Ω
B
A 0.0787”B
Resistance Tolerance
J = ± 5%
C
C
0.0492”
± 0.008”
D
D 0.016”
Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details.
Nom
0.0787" 0.0492" 0.016"
± 0.008" ± 0.008" NOM
“KR” SERIES
0.0787" ± 0.008"
THICKNESS:
0.050" MAX
© 2018 Littelfuse, Inc. Revised: February 26, 2018
Specifications are subject to change without notice.
0.0492"
± 0.008"
1
littelfuse.com
Surface Mount Thermistors
End Banded Chip Thermistor
KR Series 0805 End-Banded Chip Thermistors
Specifications
Part
Number
Resistance
Ohms
@25°C
*Resistance
Tol. ± %
@ 25°C
Temperature
Coefficient
(% / °C)
@ 25°C
Beta (K)
25/50°C
Beta (K)
25-85°C
Maximum
Power
Rating
(mW)
Temperature
Rating
(°C)
KR102D0J
1000
5
_
_
3250
300
-40 to +125
KR252L0J
2500
5
_
_
4100
300
-40 to +125
KR272G0J
2700
5
_
_
3750
_
-40 to +125
KR502F0J
5000
5
_
_
3550
300
-40 to +125
KR103E0J
10000
5
_
_
3435
300
-40 to +125
KR103G0J
10000
5
_
3712
3750
300
-40 to +125
KR103J0J
10000
5
- 4.4
_
3976
_
-40 to +125
KR303K0J
30000
5
_
_
4000
300
-40 to +125
KR503L0J
50000
5
_
_
4150
300
-40 to +125
KR104R0J
100000
5
_
_
4250
300
-40 to +125
KR204R0J
200000
5
_
_
4250
300
-40 to +125
*Resistance tolerances of ± 1%, 2%, and 5% are available upon request
Packaging
Packaging Option
Packaging Code
Standard
Tape and Reel
-TR / -2
EIA-481
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics
© 2018 Littelfuse, Inc. Revised: February 26, 2018
Specifications are subject to change without notice.
2
littelfuse.com
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