KOA Resistors

Thin / Thick Film / MELF / Shunt / Network / THT

KOA

The subsidiary KOA Europe GmbH was founded in 1995 in Germany. The parent company was founded in 1940 in Japan under the name KOA Kogyo.

KOA develops and manufactures its electronic components in 23 factories worldwide. There are 18 production facilities in Japan alone and the rest in China, Malaysia and Taiwan. The product portfolio includes all resistors such as thick-film resistors, thin-film resistors or shunts. KOA's fuses, sensors and inductors as well as varistors and LTCCs represent a smaller area.

Since 1945, the KOA Group has a quality management system certified according to DIN EN ISO 9001 and DIN EN ISO14001 and since 2018, according to IATF16949. Our two companies KOA Europe and Beck have had a business connection since 2001.

Thin Film Chip Resistors

Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features
RN73R  10~1.5M 0.063~0.25 0402 to 1210 0.05, 0.1, 0.25, 0.5, 1 ±5~±100 Download Metal film (High reliability)
RN73H 10~1.5M 0.063~0.25 0402 to 1210 0.05, 0.1, 0.25, 0.5, 1 ±5~±100 Download Metal film (High reliability, for Automotive)

Thick Film Chip Resistors

Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features
RK73B 1~22M 0.03~2 01005 to 2512 2, 5 0~+300, ±200~±400 Download General purpose
RK73H 1~10M 0.03~2 01005 to 2512 0.5, 1 ±100~±400 Download Precision
RK73G 10~1M 0.05~0.25 0201 to 1206 0.25, 0.5, 1 ±50 Download Ultra precision
RS73 10~10M 0.2~0.33 0603, 0805, 1206 0.1, 0.25, 0.5, 1 ±25, ±50 Download Ultra precision(Long-term stability)
HRK73 1~10M 0.1~0.25 0402 to 1206 5, 1 ±200~±400 Download Heat resistance
XR73B/XR73H/XR73Z 1~10M 0.063 0201 to 0402 1, 5 ±100~±400 Download For Embedded Substrates
RK73Z 50m max. - 01005 to 2512 - - Download Jumper chip
WK73R 10~1M 0.33~2.0 0204 to 1225 0.5, 1, 5 ±100~±200 Download Wide terminal
WK73R (High Power) 10~1M 1.5~3.0 0612 to 1225 0.5, 1, 5 ±100~±200 Download Wide terminal(High power)
WG73 560m~1k 1~2 0612 to 1225 10, 20 ±100 Download Wide terminal (Anti-Surge/Anti-Pulse)
HV73 10k~100M 0.1~1 0603 to 2512 0.5, 1, 2, 5 ±100~±200 Download High voltage
HV73V 10k~51M 0.1~0.25 0603 to 1206 0.5, 1, 2, 5 ±100~±200 Download High voltage(For Automotive)
SG73 1~1M 0.1~1 0603 to 2512 10, 20 ±200~±400 Download Anti-Surge/Anti-Pulse
SG73S 1~10M 0.125~1 0402 to 1210 0.5, 1, 2, 5 ±100~±200 Download Anti-Surge(Precision)
SG73P 1~10M 0.125~1 0402 to 1210 0.5, 1, 2, 5 ±100~±200 Download Anti-Pulse(Precision)
SG73G  10~1M 0.2~0.5 0603, 0805, 1206 0.25, 0.5 ±50 Download Anti-Pulse(Ultra Precision)
RK73B-RT 1~10M 0.03~2 01005 to 2512 2, 5 0~+300, ±200~±300 Download General Purpose (Anti Sulfuration)
RK73H-RT 10~10M 0.03~2 01005 to 2512 0.5, 1 ±100~±300 Download Precision (Anti Sulfuration)
RK73Z-RT 50m max. (100m: 1H) - 0201 to 2512 - - Download Jumper chip (Anti Sulfuration)
RK73G-RT 30~1M 0.1~0.25 0402 to 1206 0.25, 0.5, 1 ±50 Download Ultra Precision (Anti Sulfuration)
RS73-RT  10~10M 0.2~0.33 0603, 0805, 1206 0.1, 0.25, 0.5, 1 ±25, ±50 Download Ultra Precision (Long-term stability, Anti Sulfuration)
WK73-RT 1~1M 0.75~2.0 0508 to 1225 1, 5 ±100~±200 Download Wide terminal (Anti Sulfuration)
WK73-RT (High power) 0.2~1M 1.5~3.0 0612 to 1225 1, 5 ±100~±200 Download Wide terminal (High Power, Anti Sulfuration)
HV73-RT 10k~51M 0.1~1 0603 to 2512 0.5, 1, 2, 5 ±100~±200 Download High Voltage (Anti Sulfuration)
HV73V-RT 10k~51M 0.1~0.25 0603 to 1206 0.5, 1, 2, 5 ±100~±200 Download High Voltage (For Automotive, Anti Sulfuration)
SG73-RT 1~1M 0.1~1 0603 to 2512 10, 20 ±200~±400 Download Anti Surge/Anti-Pulse (Anti Sulfuration)
SG73S-RT 1~10M 0.125~1 0402 to 1210 0.5, 1, 2, 5 ±100~±200 Download Anti Surge (Precision, Anti Sulfuration)
SG73P-RT 1~10M 0.125~1 0402 to 1210 0.5, 1, 2, 5 ±100~±200 Download Anti-Pulse (Precision, Anti Sulfuration)
SR73-RT  100m~10 0.166~0.66 0402 to 1210 1, 2, 5 ±100~±300 Download Low Resistance (Anti Sulfuration)
RF73 0.2~510 0.063~1 0603 to 2512 5 ±500, +1000~-500 Download Fusible
WK73S 10m~9.76 0.75~2 0508 to 1225 0.5, 1, 5 ±100~±800 Download Wide terminal (Low resistance)
WK73S (High power) 10m~9.76 1.5~3 0612 to 1225 0.5, 1, 5 ±100~±800 Download Wide terminal (Low resistance, High Power)
WU73 10m~100m 1, 1.5 0612 1 ±75~±100 Download Wide terminal (Low resistance, Improved TCR)
SR73 24m~10 0.1~2 0201 to 2512 0.5, 1, 2, 5 0~+500, ±100~±1000 Download Low resistance
SLR 301m~1M 1 2512 0.5, 1, 5 ±100 Download Molded type thick film
UR73 10m~100m 0.125~1 0402 to 2512 1 ±100~±500 Download Low resistance, Low TCR
UR73V 10m~100m 0.5~1 0805 to 1206 1 0~+250, ±75 to ±100 Download Low resistance, Low TCR (For Automotive)
Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features

MELF Type Resistors / Cylindrical Chip

Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features
RD41 1~2.2M 0.25 1406 or 2309 2, 5 +350~-1300 Download Carbon film (General purpose)
RN41 0.22~5.11M 0.25~1 1406 or 2309 0.1, 0.25, 0.5, 1, 5 ±25, ±50 Download Metal film (Precision)
CC 20m max. - 1406 or 2309 - - Download Jumper

Shunts / Jumper

Series Resistance (Ω) Current Rating (A) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features
RK73Z 50mΩ max. 0.5~2 01005 to 2512 Download Jumper Chip
TLRZ 0.2mΩ max. (0.5mΩ max: 1E) 10~50 0402 to 1206 Download Metal Plate Chip Jumper
SLZ 0.5mΩ max. 44 2512 Download High Current Jumper Type
HS 0.05m, 0.1m, 0.2m 300, 600, 1000 157 × 59 5 50±25 Download Large current sensing / Ultra low resistance
PSJ2 0.2m, 0.5m, 1m, 2m, 3m, 4m 35~244 3920 1 ±75~±200 Download Large current sensing / Ultra low resistance
PSL2 0.2m, 0.3m, 0.5m 126, 163, 212 2512 1 ±115~±175 Download Large current sensing / Ultra low resistance
PSG4 0.5m, 1m 89, 141 2725 1 ±50 Download Large current sensing / Ultra low resistance / 4-terminal, low TCR
PSF4 0.5m, 1m 54, 100 1216 1 ±50 Download Large current sensing / Ultra low resistance / 4-terminal, low TCR
TLR (Small) 2m~10m 10~22.3 0805 1 ±100 Download Large current sensing (Ultra low resistance, small type)
TLR 0.5m~20m 5~63.2 1206 to 2512 1 ±50~±150 Download Current sensing/Ultra low resistance
TLR (High Power) 0.5m~20m 7.1~77.4 1206 to 2512 1 ±50~±75 Download Large current sensing (Ultra low resistance, high power)
TLRH 6m~270m 1.5~28.8 0805 to 2512 1 ±50~±75 Download Large current sensing (High resistance range)
TSL1 5m~100m 3.1~14.1 2512 0.5, 1, 5 ±100~±180 Download Molded current sensing (Low resistance)
SLN2 5m~200m 3.1~20 4527 0.5, 1, 5 ±75~±110 Download Molded current sensing (Low resistance, low TCR)
SL (High Power) 3m~200m 3.1~48.3 2010 to 4527 0.5, 1, 5 ±50~±180 Download Molded current sensing (Low resistance, low TCR, high power)
BLR 8m~50m 4.4~43.3 5522 to 7636 5, 10 ±100 Download Ceramic case (for Surface Mounting)
LR72 2m~8m 7.9~22.3 4413 to 5520 5 ±100~±350 Download Custom milliΩ resistors
CSR 5m~50m 4.4~20 4324 to 5032 0.5, 1 ±50 Download Current sensing / (4 terminal), molded
SLR 301m~1M 1m~1.8 2512 0.5, 1, 5 ±100 Download Molded type thick film
SLP 10m~100m 3.1~14.1 2010, 2512 0.5, 1 ±50 Download Molded current sensing (Low resistance, low TCR, high power, small size)
SL (Metal) 3m~360m 1.8~25.8 2010 to 4527 0.5, 1, 2, 5 ±50~±180, 0~+200 Download Molded current sensing (Low resistance, low TCR)
Series Resistance (Ω) Current Rating (A) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features

Resistor Networks / Resistor Arrays

Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features
CNN 1k, 10k, 100k 0.05 1008 (0805x2) 0.1, 0.25 ±25 Download Array (Metal film)
RIA 10~510k 50m~200m Q16, Q20, Q24, N08, N14, N16 0.1, 0.25, 0.5, 1, 2, 5 ±10~±100 Download Isolated Resistor Networks
RNX 10~510k 50m~200m Q16, Q20, Q24, N08, N14, N16 0.1, 0.25, 0.5, 1, 2, 5 ±10~±100 Download Custom Resistor Networks
RTY 30~200k 200m S03 0.1, 0.25, 0.5, 1, 2, 5 ±10~±100 Download SOT-23 Precision Voltage Divider (2 elements)
RBA 10~100k 50m~200m Q16, Q20, Q24, N08, N14, N16 1, 2, 5 ±25~±100 Download Bussed Resistor Network
RBB 10~100k 50m~200m Q16, Q20, Q24, N08, N14, N16 1, 2, 5 ±25~±100 Download High Speed Bussed Network
RTX 51~40k 50m~200m S03 1, 2, 5 ±25~±100 Download SOT-23 Precision Resistor Network (3 elements)
RDA 150~10k 50m~200m Q16, Q20, N16 2, 5 ±25~±100 Download Dual Terminator Network
RDB 150~10k 50m~200m Q16, Q20, N16 2, 5 ±25~±100 Download Differential Terminator Network
RLA 1k~30k 50m~200m Q16, N14, N16 2, 5 ±100 Download Custom Resistor Networks
HVD 0.5M~11.5M 250m Q24 0.1, 0.25, 0.5, 1 ±25~±50 Download High Voltage Divider

THT

Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features
BPR 0.01~1 2~10 5, 10 ±350 Download Cement case (Metal plate, current sensing)
CW 0.01~430 0.25~5 0.25, 0.5, 1, 2, 5, 10 ±50~±500 Download Wire wound
LR 3m~100m - 3, 5 ±100 Download Metal wire, current sensing
CF 1.0~5.1M 0.25, 0.5 2, 5 +350~-450, 0~-1300 Download Carbon film
CFP 2.2~1M 0.25, 0.5 2, 5 +350~-450, 0~-1300 Download Carbon film(Flame retardant)
MF 0.51~5.11M 0.25, 0.5 0.5, 1, 2 ±50~±200 Download Metal film (Precision)
SN 1~1.5M 1, 2 0.5, 1, 2 ±50~±200 Download Metal film (Precision, high power)
SNF 0.47~100 0.25, 0.5 5 +350~-400 Download Metal film (Flame retardant)
MRS 10~1M 0.125~0.3 0.01, 0.02, 0.05, 0.1, 0.25, 0.5 ±2.5~±25 Download Metal film (L-shape lead, ultra precision)
RNS 0.2~6.8M 0.125~1 0.1, 0.25, 0.5, 1 ±5~±50 Download Metal film (Precision, Low T.C.R.)
RK 100k~100M 0.25~1 1, 2, 5 ±100~±350 Download Metal glaze film (High resistance)
RK1/2G 1M~12M 0.5 5 ±250 Download Discharge path resistor (UL1676)
RCR 3.3~100M 0.25~3 1, 5 ±200~±500 Download Anti surge resistors (UL1676)/(EN60065)
GS 500k~10G 0.25~12 0.5, 1, 2, 5, 10 ±100, ±200 Download High voltage, high power, high resistance
RK92 1M~1G 0.5~4 0.5, 1, 2, 5, 10, 20 ±50~±300 Download High voltage (Metal glaze film)
RK92-L 1.2M~16M 4 10 ±300 Download High voltage (Metal glaze film)
PCF 3.3~390k 0.5~2 10, 20 -500~-2200 Download Anti-Surge / Anti-Pulse ceramic resistor
HPC 3.3~390k 0.5~5 10, 20 -500~-2200 Download Anti-Surge / Anti-Pulse ceramic resistor
CPCN 1k~15k 0.5~2 20 -1200±300 Download Ceramic resistor
P 10~6G 1.5~250 5, 10, 20 ±200~±3000 Download High voltage power resistors
MOS 10~100k 0.5~5 1, 2, 5 ±300 Download Metal oxide film (Small size)
MOSX 0.1~9.1 0.5~5 1, 2, 5 ±300 Download Metal film (Small size)
SPR 2.2~110k 0.25~5 1, 2, 5 ±350 Download Special power resistor
SPRX 0.1~2 0.25~5 1, 2, 5 ±350 Download Metal film (Small size)
BGRV 10~390 5 to 40 5, 10 ±250 Download Cement case (Wire wound, Glass core), for automotive
BSRV 430~75k 3 to 20 5 ±300 Download Cement case (Metal oxide film), for automotive
BGR 0.39~390 5~40 5, 10 ±250 Download Cement case (Wire wound, Glass core)
BWR 0.1~390 1~20 1, 2, 5 ±100 Download Cement case (Wire wound, Ceramic core)
BWRV 1~390 3 to 40 5 ±250 Download Cement case (Wire wound, Ceramic core), for automotive
BSR 430~75k 2~20 5 ±300 Download Cement case (Metal oxide film)
CW-H 0.1~3k 1~3 0.5, 1 ±20~±50 Download Wire wound, low TCR
CWFS 4.7~100 3, 5 5 ±100 Download Wire wound (with fusing function)
RW 0.1~62k 0.5~10 0.5, 1, 3, 5 +20/-50~+400/-90 Download Wire wound (Precision)
MRP 50~100k 0.1 0.1, 0.25, 0.5, 1 ±25, ±50 Download Thin film R network (Balance resistors)
RKL 22~1M 125m, 200m 1, 2, 5 ±200 Download Thick film R network (Low profile)
RKC 22~2.2M 20m~250m 1, 2, 5 ±200 Download Thick film R network (Standard)
RKH 56~2.2M 250m, 500m 1, 2, 5 ±200 Download Thick film R network (Power type)
LP 1~100k 0.063, 0.125 1, 2, 5 +150~+5000 Download Linear PTC (Precision)
RF 0.1~15k 0.17~2 5 ±350, ±1000 Download Fusing resistor
RF25CC 0.1~0.91 0.25 10 - Download Fusing resistor (Constant current fusing type)
Z 20mΩ (max.) Download Jumper (Coating type)
J-Z - Download Jumper (Molded)
JL - Download Jumper wire (Taping)
CR 10~1M - 5 ±200 Download Thick film C/R network (custom)
Series Resistance (Ω) Power Rating (W) Size (inch) Tolerance (±%) T.C.R. (ppm/K) Features