• Surface Mount Resistors


    Flat chip resistors and arrays include general purpose, high precision, laser trimmable, audio and surge, high voltage, high heat and zero ohm types for applications ranging from general purpose to ultra precision.

    •  Thick Film  •  Thin Film  •  Melf  •  Resistor Array  •  Specialty

  • Current Sense Resistors


    Four basic types of current sensing resistors are available in low-ohm, high precision, 4-terminal Kelvin, high power, low profile, high frequency, high heat, and power shunt chips for a wide range of detecting applications and power applications.

    •  Thick Film  •  Molded  •  Metal Plate  •  Power Shunt  •  Ceramic

  • Circuit Protection & Thermal Sensor


    Complementing our flat chip resistors is a complete line of circuit protection products including thermistors, platinum sensors, chip and ceramic case fuses and metal oxide varistors.

    •  Platinum Thermal Sensors  •  Fuses  •  Varistors  •  Thermal Sensors

  • Leaded Resistors


    The industry's broadest line of leaded resistors and networks includes designs with various material composition and structure for use in general purpose, precision, anti-surge, high voltage, high resistance applications.

    •  Carbon Film  •  Special Power Film  •  Metal Film  •  Metal Oxide  •  Wirewound  •  Leaded SIP Networks  •  Zero Ohm/Jumper  •  Specialty

  • Inductors


    Magnetic solutions cover an application range from RF to power by using ferrite, ceramic, thin film, wirewound and choke coil technologies.

    •  Wirewound  •  Choke Coils  •  Multilayer  •  Thin Film

New Products
& News

  • Flextronics Recognizes Outstanding Contributions by Strategic Suppliers

    Flextronics Recognizes Outstanding Contributions by Strategic Suppliers San Jose, CA, July 9, 2014 - Flextronics (NASDAQ: FLEX) announced the recipients of its 2014 Strategic Supplier Awards that were honored last month. The Awards recognize outstanding performance, strategic value-add, excellent service and innovation by suppliers that exemplify what it means to be a strategic supplier at Flextronics. Suppliers selected for the awards…more>

  • KOA Speer Introduces 1 Watt-1206 Size Metal Plate Chip Current Sense Resistor

    KOA Speer Introduces 1 Watt-1206 Size Metal Plate Chip Current Sense Resistor Bradford, PA, July 23, 2014 - KOA Speer Electronics introduces the TLR2BW metal plate chip current sense resistor, featuring a 1 watt power rating in a 1206 chip size, and a low resistance of 1 mΩ ~ 20 mΩ. The metal alloy of the TLR2BW provides superior corrosion and heat resistance, with small size SMD type metal plate providing low resistance for current…more>

  • KOA Speer Receives Arrow Electronics' 2013 Platinum Level Perfect Order Award

    KOA Speer Receives Arrow Electronics' 2013 Platinum Level Perfect Order Award Bradford, PA, June 12, 2014 - KOA Speer Electronics, Inc. announced today that it was presented the Arrow Electronics, Inc. Perfect Order Index (POI) award for 2013. KOA Speer received the platinum  award for the highest level of performance in the passive electromechanical components category. Arrow's POI awards honor suppliers that achieve best-in-class performance…more>

  • KOA Speer Introduces New 3 Watt Current Sensing Metal Plate Chip Resistor

    KOA Speer Introduces New 3 Watt Current Sensing Metal Plate Chip Resistor Bradford, PA – June 13, 2014 - KOA Speer Electronics introduces its new TLR, 3W current sensing metal plate chip resistor in a 2512 package.  The TLR3AP provides an ultra low resistance of 0.5mΩ ~10mΩ. KOA Speer's TLR3AP resistor features a T.C.R. of ±50 and ±75 and a 1% tolerance rating. The resistor's metal alloy substrate provides…more>

  • KOA Speer Introduces a 44Amp Zero Ohm (SLZ) and 1W/2010 (SLW07) Molded Power Current Sensing Resistors

    KOA Speer Introduces a 44Amp Zero Ohm (SLZ) and 1W/2010 (SLW07) Molded Power Current Sensing Resistors Bradford, PA– May 22, 2014 - KOA Speer Electronics introduces two new current sensing resistors, the zero ohm SLZ  and the 1W/2012 SLW07. The high current SLZ1 jumper chip offers a rated current of 44A in a 2512 size. The SLW07 has an enhanced high power rating of 1Watt in a smaller package size of 2010. KOA Speer's SLZ1 and SLW07 both feature a wide temperature…more>

Get On Board

As you search for surface mount passive components that will ensure the optimum performance of your circuit design, count on the broad line of products from KOA Speer. Our engineering teams are developing a wide range of new smaller sizes and integrated packages to accommodate higher clock speeds and product downsizing. Our world class manufacturing facilities are poised to ramp up with new designs, allowing us to take them to market with the shortest of lead times. And our sophisticated warehousing and distribution system ensures the availability of components when you need them.

Quality 1st...
at KOA Speer it's a way of life

You expect product quality from any component that makes it into one of your designs. But in today's competitive global marketplace, there's so much more to the quality equation. At KOA Speer, we've launched our Quality 1st initiative to reinforce our organization wide focus on serving you at the highest possible level. And our commitment to quality in everything we do is paying off… in the past two years we've received ten major customer quality awards.


Resistors

Wide terminal type flat chip resistors (anti sulfuration)

WK73-RT

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 resistors (anti-sulfuration)

RK73-RT

High Power Chip Resistors/Wide Terminal

WK73

Thin Film (Metal) Chip Resistor-ultra high precision (0.05%, 0.1%, 1%) tolerance

RN73

Thin Film (metal) Chip Resistor-high heat resistance, ultra high precision (0.05%, 0.1%, 1%) tolerance

RN73H

Microwave thin film chip resistors

SHD(X)

Flat chip resistors for high voltage

HV73

Surge current thick film chip resistor

SG73

Surge current flat chip resistors (anti-sulfuration)

SG73-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

Current sensing chip resistor

UR73

Chip type power shunt resistor

PSB

Chip type power shunt resistor

PSI/PSE

Metal plate chip type low resistance resistor

TLR1E/2A

Metal plate current sense resistor

TLRZ

Metal plate current sense resistor

TLR

Metal plate chip type low resistance resistors

TLRH

High power, wide terminal type flat chip resistors

WK73

Surface mount molded current sense resistors

SL, SLN, TSL

Ceramic case surface mount resistor

BLR

Metal plate current sense resistors

LR72A, LR72B, LR72C

Four-terminal current sense resistor

CSR

Thin Film (Metal) Chip Resistor-ultra high precision (0.05%, 0.1%, 1%) tolerance

RN73

Thin Film (metal) Chip Resistor-high heat resistance, ultra high precision (0.05%, 0.1%, 1%) tolerance

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/CN___N

Anti sulfuration chip networks (concave termination)

CN-RT

Anti sulfuration chip networks (convex termination)

CN_K-RT

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

Bga resistor networks

BR

Mini flat package type thick film resistor networks

MRGF16

Thin film chip networks

CNN

Isolated resistor networks

R(X)A

Integrated passive components

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

Precision voltage divider networks

RT(X)

AC terminator networks

AC(X)

R/C filter networks

TF(X)

Diode terminator network

DN(X)

Isolated and custom resistor networks

RIA, RNX

Precision voltage divider

RTY

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

Thick film resistors for high voltage

RK92

Ceramic fixed power type leaded resistor

HPC/PCF

High voltage power resistors

PSN, PV, PSO, PN, PWW, PAP

Metal film leaded resistor

RNS

Plate-shaped high precision metal film resistor

MRS

Insulated super miniature precision metal film resistors

SF

Coat-insulated fusing resistors

RF

Coat-insulated fusing resistors (constant current fusing type)

RF25CC

Coat-insulated fusing resistors (l-style)

RF26

Thermal fuse built-in resistors

WF

Temperature protection resistor

TPR

Reduced size metal oxide power type leaded resistor

MOS

Power carbon film leaded resistor

SPR

Metal oxide power type leaded resistor

MO

Rectangular type metal plate resistors

BPR

Custom milliohm resistor

LR

Anti-surge power type leaded resistor

RCR

Ceramic fixed power type leaded resistor

HPC/PCF

Coat insulated, precision coat insulated and miniature wirewound leaded resistors

CW, CWP, CWH

Coat insulated miniature precision power wirewound resistors

RW

Rectangular Type Wirewound Resistors With Glass Core Rectangular Type Wirewound Resistors With Ceramic Core Rectangular Type Metal Oxide Film Resistors

BGR,BWR,BSR

Thermal Protection

Negative tempco thermistor

NT73

Ptc chip thermistor (for over-temperature protection)

PT72

Small type platinum thin film thermal sensors (narrow)

SDT310HCTP

Platinum thin film thermal chip sensors

SDT73H

Platinum thin film thermal chip sensors (for automotive)

SDT73V

Platinum thin film thermal sensors

SDT101

Small type 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 (for automotive)

LT73V

Thin film resistance thermal chip sensors

LP73

Thick film linear positive tempco thermistor

LA73

Linear positive tempco melf resistor

MLT

Linear positive miniature tempco thermistor

LT

Thin film resistance thermal sensors

LP

Inductors

Custom wirewound coil

LWA

Multilayer ceramic inductor

MHL

Thin film inductor

KL73

High current inductor

KQC

High Q inductor

KQ

1210 molded wirewound inductor

KL32

Power chip inductor

LPC4545

Choke coil inductor

LPC

Power chip inductors shielded type

LKS

Choke coil inductor

LCM1060

Shielded High Current Power Choke Coil.

SDS

Shielded power choke coil inductor

SDR

Common mode choke coils

SLF

Transponder coils (Rx)

KT

Transponder coil

KTZ1030

Capacitors

Ceramic chip capacitors

NPO, X5R, X7R, Y5V

EMI/EMC Filtering

Multilayer ferrite bead

CZB

Multilayer power ferrite bead

CZP

Circuit Protection

Chip current fuse (Automotive)

TF16VN

Thin film chip fuse

TF

Chip fuse

CCP

Chip fuse

CCF

Chip fuse (IEC)

CCF1F

Metal oxide varistor

NV73

Multilayer type metal oxide varistor (automotive)

NV73DL

Metal oxide varistor disc type

NVD

Multilayer type metal oxide varistor (load dump surge)

NV73DS

Surge absorbers

SA

Test point chip

RC

Modules

L TCC multilayer substrates

KLC

Hybrid IC

KA

Multi-chip module

MCM

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