Products

Low Resistance/Current Sense Shunt Resistors

KOA's low resistance current sense shunt resistors

KOA's wide product lineup of low resistance shunt resistors that enable current sensing indispensable for power management.
The products include large current metal plate type power shunt resistors, small size and high power wide terminal resistor, thick film low resistance resistors and small type for low current purposes. Find the best product for your application.


【Power Rating and Resistance Distribution of Current Sense Shunt / Low Ohm Resistors】

*Click each product series to find the details

KOA's shunt products lineup Low Ohm Resistor WU73 Low Ohm Resistor WK73 Current Sense Shunt TLRH Current Sense Shunt SL, TSL, SLN Low Ohm Resistor SR73 Low Ohm Resistor UR73V Low Ohm Resistor UR73 Current Sense Shunt TLR Current Sense Shunt PSJ, PSG, PSL, PSF Current Sense Shunt HS Current Sense Shunt SLP

Metal Plate Type Resistor

*Click checkmarkchecked in the table below to access the download page where you can get the following data.
3D Model/Equivalent Circuit/Temperature Rise/Thermal Resistance/One Pulse Limiting Power

Features Product Series Image Catalog Design
Support
Data
Resistance
Range(Ω)
Power
Rating(W)
Size(mm) Tolerance
(±%)
T.C.R.(×10-6/K)
Large current sensing
Ultra low resistance
HSNEW HS large current shunt/KOA PDF link of power shunt HS checked 50μ to 200μ 18 to 50 40×15 to 80×22 5 50±25 to 75±50

Metal Plate Surface Mount Type Resistor

*Click checkmarkchecked in the table below to access the download page where you can get the following data.
3D Model/Equivalent Circuit/Temperature Rise/Thermal Resistance/One Pulse Limiting Power

Features Product Series Image Catalog Design
Support
Data
Resistance
Range(Ω)
Power
Rating(W)
Size(mm) Tolerance
(±%)
T.C.R.(×10-6/K)
Large current sensing
Ultra low resistance
PSJ KOA Large Current Shunt PSJ2/PSL2 PDF link of power shunt PSJ checked 0.2m, 0.5m, 1m
2m, 3m, 4m
5, 6, 8, 10, 12 10×5.2 1 ±50 to ±200
Large current sensing
Ultra low resistance
PSLNEW KOA Large Current Shunt PSJ2/PSL2 0.2m, 0.3m, 0.5m 8, 9 6332 1 ±115 to ±175
250±100
Large current sensing
Ultra low resistance,
4-terminal, low TCR
PSG PSG4 Power Shunt/KOA PDF link of power shunt PSG checked 0.5m, 1m 8, 10 2725 1 ±50
Large current sensing
Ultra low resistance,
4-terminal, low TCR
PSF PSG4 Power Shunt/KOA 0.5m, 1m 3, 5 3.0×3.8 1 ±50
current sensing
Small type,
Low resistance
TLR(Small) PDF link of metal plate current sensing resistor TLR(small size) checked 2m to 10m 1 2012 1 ±100
current sensing
Ultra low resistance
TLR PDF link of  metal plate current sensing resistor TLR checked 0.5m to 20m 0.5 to 2 3216 to 6332 1 ±50 to ±150
Large current sensing
Ultra low resistance
TLR(High Power) PDF link of  metal plate high power type current sensing resistor TLR checked 0.5m to 20m 1 to 5 3216 to 6332 1 ±50 to ±75
Metal Plate Chip Jumper TLRZ KOA's Metal Plate Zero Ohm Jumper Resistor/TLRZ PDF link of metal plate chip jumper TLRZ checked 0.2mΩ max.
(0.5mΩ max: 1E)
(Current Rating)
10A to 50A
1005 to 3216 - -
Current sensing
Low resistance
TLRH PDF link of  metal plate current sensing resistor TLRH checked 6m to 270m 0.25 to 5 2012 to 6332 1 ±50 to ±75
Current sensing
(Low resistance/T.C.R.),
molded
SLPNEW SLP PDF link of metal plate SMD low ohm shunt SLP
10m to 100m 1, 2 5025, 6332 0.5, 1 ±100
Current sensing
(Low resistance), molded
TSL PDF link of current sensing low resistance resistor TSL
5m to 100m 1 6332 0.5, 1, 5 ±100 to ±180
Current sensing
(Low resistance/TCR), molded
SLN PDF link of current sensing low resistance resistor SLN checked 5m to 200m 2 11.5x7 0.5, 1, 5 ±75 to ±110
Current sensing
(Low resistance/TCR), molded
SL(High Power) PDF link of current sensing low resistance resistor SL(high power type) checked 3m to 200m 1 to 7 5025 to 11.5x7 0.5, 1, 5 ±50 to ±180,
0 to +200
Metal Plate Chip Jumper,
Molded
SLZ PDF link of high current jumper SLZ
0.5mΩ max. (Current Rating)
44A
6332 - -
Ceramic, Custom BLR PDF link of current sensing ceramic case resistor BLR   8m to 50m 1, 2, 15 14x5.5 to 19.3x9.2 5, 10 ±100
Custom milliΩ resistors LR72 PDF link of   2m to 8m 0.25 to 1 11.2x3.2 to 14x5.2 5 ±100 to ±350
Current sensing
(4 terminal), molded
CSR PDF link of current sensing 4-terminal resistor CSR   5m to 50m 1, 2 10.8x6.2 to 12.8x8.2 0.5, 1 ±50

Metal Plate Terminal Surface Mount Type Resistor

*Click checkmarkchecked in the table below to access the download page where you can get the following data.
3D Model/Equivalent Circuit/Temperature Rise/Thermal Resistance/One Pulse Limiting Power

Features Product Series Image Catalog Design
Support
Data
Resistance
(Ω)
Power Rating
(W)
Size(mm) Tolerance
(±%)
T.C.R.(×10-6/K)
Current sensing
(Low resistance),
Low TCR, Molded
SL(Metal) PDF link of current sensing low resistance resistor SL checked 3m to 360m 0.75 to 2 5025 to 11.5x7 0.5, 1, 2, 5 ±50 to ±180

Thick Film Surface Mount Type Resistor

*Click checkmarkchecked in the table below to access the download page where you can get the following data.
3D Model/Equivalent Circuit/Temperature Rise/Thermal Resistance/One Pulse Limiting Power

Features Product Series Image Catalog Design
Support
Data
Resistance
Range(Ω)
Power
Rating(W)
Size(mm) Tolerance
(±%)
T.C.R.(×10-6/K)
Low resistance,
wide terminal
WK73S WK73S PDF link of Low resistance, wide terminal resistor WK73S checked 10m to 9.76 0.75 to 2 1220 to 3263 0.5, 1, 5 0 to +200,
±100 to ±800
Low resistance,
wide terminal
WK73S
(High power)
KOA's Wide Terminal High Power Type Resistors/WK73S PDF link of Low resistance, wide terminal resistor WK73S checked 10m to 9.76 1.5 to 3 1632 to 3263 0.5, 1, 5 ±100 to ±800
Low resistance,
wide terminal
WU73 wu73 photo PDF link of Low resistance, wide terminal resistor WU73 checked 10m to 100m 1, 1.5 1632 1 ±75 to ±100
Low resistance SR73 sr73 photo PDF link of low resistance resistor SR73 checked 24m to 10 0.1 to 2 0603 to 6332 0.5, 1, 2, 5 0 to +500
±100 to ±1000
Low resistance, Low TCR UR73 ur73 photo PDF link of low resistance resistor UR73 checked 10m to 100m 0.125 to 1 1005 to 6332 1 ±100 to ±500
Low resistance,
Low TCR, High heat
UR73V UR73V/Low R resistor PDF link of low resistance automotive type resistor UR73V checked 10m to 100m 0.5 to 1 2012 to 3216 1 0 to +250,
±75 to ±100

Metal Plate Type Leaded Resistors

Features Product Series Image Catalog Resistance
(Ω)
Power
Rating(W)
Tolerance
(±%)
T.C.R.(×10-6/K)
Cement case (Metal plate) BPR PDF link of cement case metal plate resistor BPR 0.01 to 1 2 to 10 5, 10 ±350

Metal Wire Leaded Resistors

Features Product Series Image Catalog Resistance
(Ω)
Power
Rating(W)
Tolerance
(±%)
T.C.R.(×10-6/K)
Wire wound CW PDF link of wirewound resistor CW 0.01 to 430 0.25 to 5 0.25, 0.5, 1, 2, 5, 10 ±50 to ±500
Metal wire LR PDF link of metal wire type resistor LR 3m to 100m - 3, 5 ±100

Common Specifications

Items PDF
Minimum Ordered Quantity PDF link to Minimum Ordered Quantity
Recommended Pad Dimensions PDF link to Recommended Pad Dimensions
Packagings for Chip Components PDF link to Packagings for Chip Components
Axial Tapings PDF link to Axial Tapings
Radial Taping PDF link to Radial Taping
Forming PDF link to Forming
Color code•Resistance marking•E series numbers PDF link to Color code
Introduction of terminal part temperature PDF link to Introduction of terminal part temperature