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KOA Speer Electronics, Inc.

KOA Speer Electronics, Inc.

KOA Speer Electronics, Inc. is a premier manufacturer of passive electronic components, primarily resistors and inductors. Headquartered in Bradford, Pennsylvania, USA, it is the North American subsidiary of Japan's KOA Corporation, founded in 1940. The company specializes in thick film, thin film, and current sense resistors, serving automotive, industrial, medical, and aerospace markets. Its flagship product series include the RK73 thick film chip resistors, SR73 current sensing resistors, and TF series thin film precision resistors. KOA Speer also offers a range of inductors and thermistors. Known for high reliability and precision, the company is a key supplier to demanding applications like engine control units and safety systems. With a strong R&D focus, it continuously advances thin film technologies and miniaturization. Globally, KOA Speer holds a significant market share in chip resistors, competing among the top passive component manufacturers. Their components are integral to power management, signal integrity, and circuit protection in electronics worldwide.

01

CATEGORIES

Product Categories

Connector Solutions(9)

Terminal Blocks(3)

Screw Terminal Blocks(3)

Crimp & Solder Terminals / Splices(6)

Crimp Terminals(6)

Integrated Circuits(90)

Data Converters(86)

Data Converters(86)

Embedded Microcontrollers(4)

FPGA Development Boards(4)

Resistors and Potentiometers(141,259)

Through Hole Resistors(11,802)

Through Hole Resistors(11,802)

Chip Resistors(127,612)

Chip Resistors(127,612)

Resistor Networks, Arrays(1,241)

Resistor Networks(1,042)

Precision Resistor Networks(199)

Chassis Mount Resistors(126)

Chassis Mount Resistors(126)

Trimmer Potentiometers(4)

Surface Mount Trimmer Potentiometers(4)

Fixed Resistors(474)

Capacitors(60)

Ceramic Capacitors(57)

Ceramic Capacitors(43)

High Voltage Ceramic Capacitors(14)

Capacitor Arrays(3)

Capacitor Arrays - Feed-Through(3)

Discrete Semiconductor Components(2)

FRED Diodes and Rectifiers(2)

Circuit Protection Solutions(570)

TVS Varistors and MOVs(262)

TVS Varistors and MOVs(261)

ESD Suppressors(1)

Cartridge Fuses(25)

PTC Resettable Fuses(3)

PTC Resettable Fuses(3)

Thermistors(40)

PTC Thermistors(39)

NTC Thermistors(1)

RFI and EMI Shielding Materials(220)

Ferrite Cores and Beads(220)

NTC Thermistors(20)

NTC Thermistors(20)

Inductor Components(1,426)

Fixed Inductors(1,426)

Fixed Inductors(1,426)

Industrial Power Components and Relays(1)

Signal Relays, Up to 2 Amps(1)

Telecom/Datacom Signal Relays(1)

Testing, Inspection, and Prototyping Solutions(19)

Basic Electronic Products(1)

Audio Transducers(1)

02

SERIES

产品系列共 1,133 个系列

MF1/4DC95 resistor

Precision metal film resistors for through-hole electronic circuits

BPR58C1 resistor

Through - hole current sense resistors with various resistances

CF1/2C9 resistor

Carbon film through - hole resistors of various values

CF1/2L1R resistor

Carbon film through - hole resistors of various resistances

CF1/2L4 resistor

Carbon film resistors for through - hole applications

CF1/2LT52R7 Resistor

Carbon film through - hole resistors of various values

CF1/4CT52R7 resistor

Carbon film resistors for various resistance values

CF1/4CT52A1 resistor

Carbon film resistors for through - hole applications

CF1/4L1R resistor

Carbon film resistors with various resistances

CF1/4L5 resistor

Carbon film resistors for various resistances

CF1/4LT52R9 resistor

Carbon film resistors for through-hole applications

CFS1/4L4 resistor

Carbon film resistors for through-hole applications

MCL1JHTTER passive component

Fixed inductors with various low inductance values for electronic circuits

MCL1JJTTE passive component

Fixed inductors with various inductance values for electronic circuits

MCL2AJLTE passive component

Various fixed inductors with 10% tolerance for electronic circuits

MCL2BHTTE passive component

Fixed inductors with various low inductance values for electronic circuits

CN1J4KTTD5 resistor

Resistor networks and arrays for various applications

CN1J4TTD100 resistor networks & array

Resistor networks and arrays with various resistances

CN1J4TTD51 resistor networks & array

Resistor networks and arrays in various resistances

CN2B4ATTE resistor networks & array

Resistor networks & arrays of various resistances