KOA Speer...

A Leader in
Automotive Electronics


Although most engineers know KOA as the world leader in thick film resistors, many are not aware of the extent of our broad line of passive components. In addition to our standard products, we’ve specifically developed a wide range of high-reliability and anti-sulfuration components for the demanding applications found within the automotive industry.

KOA Speer's family of automotive components includes thin and thick film resistors, specialty resistors and arrays, power shunt resistors, current sense resistors, circuit protection and thermal sensors, and inductors. And we’re the industry’s most recognized and award-winning supplier for achieving the highest product quality, on-time delivery and responsive customer service. You can count on KOA Speer as your Automotive Electronics partner.

Automotive Solutions

To view the KOA Speer components used for a particular area, please click the colored boxes below or select the system from the list on the right.

Engine Control Unit Air Flow Sensors Engine Ignition Transmission Control Air Conditioner Control System Electric pump Electric Power Steering Infotainment/Car Navigation Hybrid system DC/DC Converter Hybrid system Battery Management System Exhaust Emissions Sensor Control Circuit Tire-Pressure Monitoring System ABS - Brake Control System Body Control Module Motor Control for Power Window, Door and Mirror Power Seat Control/Seatbelt Control Instrument Panel, Electronic Relay HID - Headlight Control Smart Key System

KOA Speer's Family of Automotive Components

Thick Film Chip Resistors

General Purpose RK73B

  • Tolerance: ±2%, ±5%
  • Resistance values: 1 ~ 22MΩ
  • Sizes available: 0201 ~ 2512
  • Operating Temperature: -55°C ~ +155°C

 

Precision RK73H

  • Tolerance: ±0.5%, ±1%
  • Resistance values: 1 ~ 10MΩ
  • Sizes available: 0201 ~ 2512
  • Operating Temperature: -55oC ~ +155oC

 

50ppm/°C Thick Film RK73G

  • High precision TCR 50ppm/°C
  • Resistance values: 10 ~ 10MΩ
  • Sizes available: 0402 ~ 1206
  • Tolerance: ±0.5%, ±1%

 

Surge Current Thick Film Resistor SG73

  • Excellent surge and pulse performance
  • Up to six times the power rating at 1ms compared to standard RK73
  • ESD (electro static discharge)
  • Resistance values: 1~ 1MΩ
  • Sizes available: 0603 ~ 2512
  • Tolerance: ±10%, ±20%

 

Surge Protection Thick Film SG73S

  • Provides better ESD protection that the standard RK73
  • Resistance values: 1 ~ 10MΩ
  • Sizes available: 0402 ~ 1210
  • Tolerance: ±0.5%, ±1%, ±2%, ±5%

 

Pulse Precision Thick Film SG73P

  • Provides higher pulse rating than the standard RK73
  • Resistance values: 1 ~ 10MΩ
  • Sizes available: 0402 ~ 1210
  • Tolerance: ±0.5%, ±1%, ±2%, ±5%

Anti-Sulfur Chip Resistors

Thick Film Chip Resistors: RK73-RT

  • Pass ASTM-B809 Anti-Sulfur Testing
  • Excellent anti-sulfur characteristics due to the use of high sulfur-proof inner top electrode material
  • Excellent heat and weather resistance by the use of metal glaze thick film
  • General Purpose RK73B-RT
  • Precision RK73H-RT
  • Zero Ohm Jumper RK73Z-RT

 

Wide Terminal Thick Film Resistor WK73-RT

  • Anti-sulfur type, wide-side termination (reverse geometry)
  • Pass ASTM-B809 Anti-Sulfur Testing
  • Excellent anti-sulfur characteristics due to the use of high sulfur-proof inner top electrode material
  • Power Rating: 0.75W, 1W, 1.5W, 2W
  • Resistance values: 10m ~ 1MΩ
  • Size available: 0612 ~ 1225
  • Operating Temperature: -55oC ~ +155oC

 

Surge Current Thick Film Resistor SG73-RT

  • Pass ASTM-B809 Anti-Sulfur Testing
  • Excellent anti-sulfur characteristics due to the use of high sulfur-proof inner top electrode material
  • Resistance values: 1 ~ 10MΩ
  • Sizes available: 0402 ~ 1210
  • Tolerance: ±0.5%, ±1%, ±2%, ±5

 

Surge Protection Thick Film Resistor SG73S-RT

  • Pass ASTM-B809 Anti-Sulfur Testing
  • Excellent anti-sulfur characteristics due to the use of high sulfur-proof inner top electrode material
  • Provides better ESD protection that the standard RK73
  • Resistance values: 1 ~ 10MΩ
  • Sizes available: 0402 ~ 1210
  • Tolerance: ±0.5%, ±1%, ±2%, ±5%

 

Circuit Protection

Varistor

Multilayer Type Metal Oxide Varistor NV73DL

  • Surge voltage protectors for Automotive ideal for countermeasures against ESD
  • Max. Peak Current (8/20µS): 80 ~ 300A
  • Varistor voltage: 12 ~ 82
  • Max. Energy (J): 0.1 ~ 1.5
  • Sizes available: 0603 ~ 1206

 

Load Dump Surge Varistor NV73DS

  • Symmetrical non-linearity V-l characteristics absorb positive and negative surges
  • Max. Peak Current (8/20µS): 200A
  • Varistor voltage: 27, 47
  • Max. Energy (J): 63 ~ 70
  • Size: 2420

 

Fuses

Chip Current Fuse CCP

  • Immediate cut-off of excessive heat
  • Rapid change of temperature: -55oC ~ +125oC, 10 cycles
  • Current Rating: 0.75A ~ 2.5A
  • Fusing Current: 1.5A ~ 6.3A
  • Sizes available: 1206, 1210

 

Chip Current Fuse CCF

  • Rapid change of temperature: -55oC ~ +125oC, 10 cycles
  • Ceramic case provides excellent mechanical strength
  • Rated Current: 400mA ~ 15A
  • Internal R (mW) Max.: 3.5 ~ 650
  • 2410 size

 

Chip Current Fuse TF16VN

  • SMD over current protectors
  • Rapid change of temperature: -55oC ~ +125oC, 10 cycles
  • Rated Current: 0.80A ~ 3.15A
  • Internal R (mW) Max.: 40 ~ 200
  • Rated Voltage: 32V
  • 0603 size

Current Sense Resistors

Wide Terminal Thick Film Resistor WK73

  • High power ratings as a result of its enhanced heat dissipation
  • Superior thermal shock characteristics
  • Power Rating: 0.75W, 1W, 1.5W, 2W
  • Resistance values: 10m ~ 1MΩ
  • Size available: 0612 ~ 1225
  • Operating Temperature: -55oC ~ +155oC

 

Chip Type Power Shunt PSB

  • Easy to absorb the thermal expansion due to KOA’s original terminal structure
  • Power rating: 6W, 7W
  • Resistance values: 0.2m, 0.75m, 1mΩ
  • TCR: ±75, ±100ppm/oC

 

Chip Type Power Shunt PSE/PSI

  • Flat structure allows smooth current flow
  • Power rating: 3W, 5W
  • Resistance values: 0.5m, 1m, 1.5m, 2m, 3m, 4mΩ
  • TCR: ±50, ±150ppm/oC

 

Molded Current Sense Resistor

Molded Current Sense Resistor SL07, SL1, SL2, SL3, SLN2, SLZ, TSL

  • Flame retardant resin molding (UL94 V-0)
  • Power rating: SL07: 0.75W, SL1: 1W, SL2: 2W, SL3: 3W, SLN2: 2W
  • TSL1 (low profile): 1W, SLZ1: zero ohm
  • Resistance values: 3M ~ 22MΩ
  • Tolerance: ±0.5%, ±1%, ±2%, ±5%
  • Operating Temperature: -55oC ~ +180oC

 

Higher Power Molded Current Sense Resistor SLW07, SLW1, SLN3, SLN5

  • Higher Power Ratings: SLW07: 1W, SLW1: 1.5W, SLN3: 3W, SLN5: 7W
  • Flame retardant resin molding (UL94 V-0)
  • Resistance values: 5m ~ 200mΩ
  • Operating Temperature: up to +180oC

 

Metal Plate Current Sense Resistor

Metal Plate, Low Resistance Current Sense Resistor  TLR1E: 0402-0.2W TLR2B: 1206-0.5W TLR2H: 2010-1W TLR3A: 2512-1W

  • Resistance values: down to 1mΩ
  • Rated Terminal Part Temperature: 105°C

 

Increased Power Rating Metal Plate Resistors  TLR2BW: 1206-1W TLR3AW: 2512-2W

  • Resistance values: down to 0.5mΩ
  • TCR:+50ppm/°C

 

Higher Power Rating Metal Plate Resistors  TLR2A: 0805-1W TLR2BP: 1206-1.5W TLR2HW: 2010-2W TLR3AP: 1206-1.5W

  • Resistance values: down to 0.5mΩ
  • Operating Temperature up to +170°C

 

Metal Plate Current Sense Resistor LR72

  • Superior thermal expansion cycling
  • Power rating: .25W, .5W, 1W
  • Resistance values: 2m ~ 8mΩ
  • Operating Temperature: -40oC ~ +155oC, -40oC ~ +180oC

 

Metal Plate Current Sense Resistor LR

  • Suitable for high power current detection
  • Super low resistance values: 3m ~ 100mΩ
  • Diameter: 0.6 ~ 2.9
  • Operating Temperature: -40oC ~ +180oC

 

Low Resistance Flat Chip Resistor

Lo-Ohm, Thick Film Current Sense Resistor SR73

  • Low Resistance values: 0.24 ~ 10Ω
  • Sizes available: 0201 ~ 2512
  • Tolerance: ±0.5%, ±1%, ±2%, ±5%
  • TCR: ±100 ~ ±1000

Thermal Sensor

Platinum Thin Film Thermal Chip Sensor SDT73V

  • TCR in accordance to JIS, DIN-IES Standards
  • Resistance values: 100Ω, 500Ω
  • TCR: 3850ppm/oC
  • Operating Temperature: -55oC ~ +155oC

 

Platinum Thin Film Thermal Sensor Resistor SDT101

  • Stable characteristics in long time use with an excellent environment resistance
  • Usable as a heater of hot film flow sensor
  • Temperature Range: -55oC ~ +300oC
  • Resistance values: 10, 100, 500Ω
  • TCR: 3500ppm/oC

 

Linear PTC Flat Chip Resistor LT73V

  • SMD thin film technology with thermo-perceptivity
  • TCR: 150 ~ 4500ppm/oC
  • Rated Ambient Temperature: +85oC
  • Operating Temperature: -55oC ~ +155oC
  • Sizes available: 0805, 1206

MELF Type Resistors

Fixed Ceramic MELF Resistor CPCN

  • Suitable for noise suppression of engine ignition systems
  • Power Rating: 0.5W, 1W, 1.5W, 2W
  • Resistance values: 1k, 2k, 5k, 10k, 15kΩ
  • TCR: -1200 +300ppm/oC
  • Operating Temperature: -40oC ~ +200oC

Thin Film Chip Resistors

High Heat Resistance Thin Film RN73H

  • High reliability and stability at elevated temperature
  • Improved moisture resistance by glass passivation
  • Resistance values: 10 ~ 1MΩ
  • TCR: ±5, ±10, ±25, ±50, ±100ppm/oC
  • Sizes Available: 0402 ~ 1210

 

Thin Film Resistor Networks RB(X), RD(X), RT(X)

  • Excellent resistance matching TCR tracking and stability
  • Custom circuits available
  • Packages: SOT-23, QSOP, SOIC-N
  • Resistance values: 30 ~ 100kΩ

 

Thin Film Resistor Networks RIA, RNX

  • High precision resistor networks
  • Custom circuits available
  • Packages: QSOP, SOIC-N
  • TCR: ±10, ±25, ±50, ±100ppm/oC
  • Resistance values: 30 ~ 510kΩ

Inductors

High Precision Thin Film Inductor KL73

  • Low DC Resistance, High Q
  • Nominal Inductance: 0.56 ~ 100nH
  • Tolerance: 0.1nH, 0.2nH, ±2%, ±5%
  • Temperature Range: -40oC ~ +155oC
  • Sizes: 0402 ~ 1206

 

High Q Air-Core Chip Inductor KQ

  • Q Measuring Frequency (mHz) 50 ~ 250
  • Nominal Inductance: 1 ~ 10,000nH
  • Tolerance: 0.1nH, 0.2nH, ±2%, ±3%, ±5%, ±10%, ±20%
  • Sizes available: 0402 ~ 1008

 

Power Chip Inductor LPC4235, 4545

  • Low DC resistance and high allowable current
  • Allowable DC current: 0.12 ~ 3.10A
  • Nominal Inductance: 0.82 ~ 2200µH
  • Tolerance: ±10%, ±20%

 

Shielded Choke Coil Inductor LCM1060

  • Original construction & wiring technology
  • Low DC resistance: 9 ~ 880
  • Nominal Inductance: 1.5 ~ 470µH
  • Operating Temperature: -40oC ~ +150oC

 

Transponder Coil (Rx) KT

  • Single LF antenna for receiver
  • High sensitivity ~ 75mV/µT
  • DC resistance: 500 ~ 700kHz min.
  • Nominal Inductance: 2.4 ~ 12mH
  • L, Q Measuring Frequency: 125kHz

Power Type Resistors (Leaded)

Power Type Metal Oxide, Reduced Size Resistor MOS

  • Flame Retardant coating (Equivalent to UL94V-0)
  • Power Rating: 0.5W ~ 5W
  • Resistance values: 10 ~ 100kΩ
  • Operating Temperature: -55oC ~ +200oC

 

High Power Rectangular Wirewound Resistor BGR, BWR, BSR

  • High power resistor in flame-retardant insulated ceramic case
  • Power Rating: 1W ~4W
  • Resistance values: 0.39 ~ 56kΩ
  • Tolerance: ±1%, ±2%, ±5%, ±10%

 

Metal Plate High Power Rectangular Wirewound Resistor BPR

  • Power type current detecting resistor in a flame-retardant ceramic case
  • Power Rating: 2W, 3W, 5W, 10W
  • Resistance values: 0.01 ~ 1Ω
  • Operating Temperature: -40oC ~ +200oC
Transmission Control
Air Conditioner Control System
Electric pump
Hybrid system DC/DC Converter
Battery Management System
Exhaust Emissions Sensor Control Circuit
Instrument Panel, Electronic Relay
Smart Key System
Engine Control Unit

Resistors

General purpose 2%, 5% tolerance thick film chip resistor

RK73B

Precision 0.5%, 1% tolerance thick film chip resistor

RK73H

Thick film 0.5%, 1% tolerance, 50ppm/°C chip resistor

RK73G

Flat chip resistor (Anti-Sulfuration)

RK73-RT

Flat chip resistor (Ultra precision grade, Anti-Sulfuration) .

RK73G-RT

Flat thick film resistors (for embedded substrates)

XR73B/XR73H/XR73Z

Wide terminal type flat chip resistor

WK73R

Higher power wide terminal type flat chip resistor

WK73R (Higher Power)

Wide terminal type flat chip resistor (Anti-Sulfuration)

WK73-RT

Higher power wide terminal type flat chip resistor (Anti-Sulfuration)

WK73-RT (Higher Power)

Ultra precision 0.05%, 0.1%, 1% tolerance thin film chip resistor .

RN73

High heat resistance metal film chip resistor

RN73H

Microwave thin film chip resistors

SHDR

Flat chip resistors for high voltage

HV73

Flat chip resistors for high voltage (Anti-Sulfuration)

HV73-RT

Flat chip resistors for high voltage (Automotive)

HV73V

Flat chip resistors for high voltage (Automotive– Anti-Sulfuration)

HV73V-RT

Anti-surge thick film chip resistor

SG73

Surge current flat chip resistors (anti-surge, anti-sulfuration)

SG73-RT

Pulse/surge current thick film chip resistor

SG73P

Pulse/surge current thick film chip resistor

SG73S

Pulse/surge current thick flat chip resistor (Anti-Sulfuration)

SG73P-RT

Pulse/surge current thick flat chip resistor (Anti-Sulfuration)

SG73S-RT

Zero ohm jumper chip resistor

RK73Z

Fusing flat chip resistor

RF73

Lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor

SR73

Higher Power surge current thick film chip resistor

SR73 (Higher Power)

Surge current thick film chip resistor(Anti-Sulfuration)

SR73-RT

Current sensing chip resistor

UR73

Low resistance flat chip resistor

UR73V

Wide terminal, low resistance flat chip resistor

WU73

Wide terminal type current sense flat chip resistor

WK73S

Higher power wide terminal current sense flat chip resistor

WK73S (Higher Power)

Large current shunt resistor

HS

Current sensing power shunt

PSJ2

Current sensing power shunt

PSL2

Current sensing power shunt

PSG4

Current sensing power shunt

PSF4

Chip type power shunt resistor

PSB

Chip type power shunt resistor

PSI/PSE

Metal plate chip type low resistance resistor

TLR1E/2A, TLRZ

Metal plate current sense resistor

TLR2B, 2H, 3A, 3AW

Metal plate current sense resistor

TLR-2BW, 2BP, 2HW, 3AP, 3APS

Metal plate chip type low resistance resistors

TLRH

Surface mount molded current sense resistors

SL07, 1, 2, 3, SLN2, SLZ, TSL

Surface mount molded current sense resistors

SLW07, SLW1, SLN3, SLN5

Ceramic case surface mount resistor

BLR

Metal plate current sense resistors

LR72A, B, C

Four-terminal current sense resistor

CSR

Ultra precision 0.05%, 0.1%, 1% tolerance thin film chip resistor .

RN73

High heat resistance metal film chip resistor

RN73H

Fixed carbon film melf resistor

RD41

Fixed metal film melf resistors

RN41, RM41

Zero ohm melf resistor

CC

Fixed ceramic melf resistor

CPCN

Concave termination with square corners resistor array

CN

Convex termination with square corners resistor array

CN___K/N

Anti sulfuration chip networks (concave termination)

CN-RT

Anti sulfuration chip networks (convex termination)

CN-KRT

Bussed square corner resistor array

CND

Bussed concave termination square corner resistor array

CNB

Convex termination with scalloped corners resistor array

CN___A

Zero ohm jumper resistor array

CNZ

Ball grid array (BGA) resistor network

BR

Thin film chip networks

CNN

Integrated passive components

RB(X), RD(X), RT(X)

Isolated and custom resistor networks

RIA, RNX

Precision voltage divider

RTY

R/C filter networks

TF(X)

Diode terminator networks

DN(X)

AC terminator networks

AC(X)

Precision metal film resistor SIP network

MRP

Thick film SIP resistors

RKC, RKH, RKL

CR networks

CR

Carbon film leaded resistors

CF

General purpose metal film leaded resistor

MF, MFS, RK

Radial metal film leaded resistors

LF, LFF, RK26

Jumper wire

JL

Zero ohm jumpers

Z, J

Anti-surge power type leaded resistor

RCR

High voltage high resistance thick film resistors

GS

High voltage thick film resistor

RK92

High voltage thick film discharge resistor

RK92L

Ceramic resistors for anti pulse surge

HPC

Ceramic resistors for anti pulse surge

PCF

High voltage power resistors

PSN, PV, PSO, PN, PWW, PAP

MIL approved metal film leaded resistor

RNS

Plate-shaped high precision metal film resistor

MRS

Insulated super miniature precision metal film resistor

SF

Reduced size metal oxide power type leaded resistor

MOS

Metal oxide power type leaded resistor

MO

Power carbon film leaded resistor

SPR

Coat-insulated, precision coat-insulated and miniature wirewound leaded resistors

CW, CWP, CWH

Coat-insulated wirewound resistor (with fusing functional)

CWFS

Coat-insulated miniature precision power wirewound resistors

RW

Rectangular type wirewound resistors

BGR, BWR, BSR

Rectangular type metal plate resistor

BPR

Custom milliohm resistor

LR

Coat-insulated fusing resistor

RF

Coat-insulated fusing resistor (Constant current fusing type)

RF25CC

Coat-insulated fusing resistor (L type)

RF26

Thermal fuse built-in resistor

WF

Anti-surge fusing resistor

TPR

Anti-surge power type leaded resistor

RCR

Ceramic resistors for anti pulse surge

HPC

Ceramic resistors for anti pulse surge

PCF

Rectangular type metal plate resistor

BPR

Custom milliohm resistor

LR

Thermal Protection

Negative tempco thermistor

NT73

SMD platinum thin film thermal chip sensors

SDT73H/SDT73S

SMD platinum thin film thermal chip sensors (Automotive)

SDT73V

Platinum thin film thermal sensors

SDT101

Small type platinum thin film thermal sensors (Narrow)

SDT310HCTP

Small type platinum thin film thermal sensor (Small heater element)

SDT310VASP

Platinum thin film thermal sensors

SDT310

Thermal sensors

ST

Air flow sensor units

AFS

Linear positive tempco thermistor

LT73

Linear positive temperature coefficient flat chip resistors

LT73V

Thin film resistance thermal chip sensor

LP73

Thick film linear positive tempco thermistor

LA73

Linear positive tempco melf resistor

MLT

Linear positive miniature tempco thermistor

LT

Thin film resistance thermal sensor

LP

Inductors

Multilayer ceramic inductor

MHL

Thin film inductor

KL73

High current inductor

KQC

High Q inductor

KQ

Power chip inductor

LPC4235, LPC4545

Choke coil inductor

LPC

Shielded choke coil inductor

LCM1060

Power chip inductors shielded type

LKS

Custom wirewound coil

LWA

Transponder coil (Rx)

KT11835

Capacitors

Ceramic chip capacitors

NPO, X5R, X7R, Y5V

EMI/EMC Filtering

Multilayer ferrite bead

CZB

Multilayer power ferrite bead

CZP

Circuit Protection

Thin film chip fuse

TF

Chip current fuse (Automotive)

TF16VN

Chip fuse

CCP

Chip fuse

CCF1N

Chip fuse (IEC)

CCF1F

Metal oxide varistor

NV73

Multilayer type metal oxide varistors (Automotive)

NV73DL

Load dump surge varistors (Automotive)

NV73DS

Metal oxide varistor (Nonflammable coated)

NVF

Metal oxide varistor disc type

NVD

Surge absorber

SA

Test point chip

RC

Modules

LTCC multilayer substrates

KLC

Hybrid IC

KA

Multi-chip module

MCM

Loading...