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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
WW12FB13R0

WW12FB13R0

Stackpole Electronics, Inc.

RES 13 OHM 0.4W 1% AXIAL

0
WW2FT4R70

WW2FT4R70

Stackpole Electronics, Inc.

RES 4.7 OHM 1.5W 1% AXIAL

0
RNF14FTD750R

RNF14FTD750R

Stackpole Electronics, Inc.

RES 750 OHM 1/4W 1% AXIAL

793
RSMF2JT56K0

RSMF2JT56K0

Stackpole Electronics, Inc.

RES 56K OHM 2W 5% AXIAL

0
RNF14BAE28K7

RNF14BAE28K7

Stackpole Electronics, Inc.

RES 28.7K OHM 1/4W .1% AXIAL

0
RNMF14FTD69K8

RNMF14FTD69K8

Stackpole Electronics, Inc.

RES 69.8K OHM 1/4W 1% AXIAL

0
RSMF12JT130R

RSMF12JT130R

Stackpole Electronics, Inc.

RES 130 OHM 1/2W 5% AXIAL

0
RNF18FTD158R

RNF18FTD158R

Stackpole Electronics, Inc.

RES 158 OHM 1/8W 1% AXIAL

0
CF18JT430K

CF18JT430K

Stackpole Electronics, Inc.

RES 430K OHM 1/8W 5% AXIAL

4180
RSMF12FTR100

RSMF12FTR100

Stackpole Electronics, Inc.

RES 0.1 OHM 1/2W 1% AXIAL

0
RNMF14FTC16R0

RNMF14FTC16R0

Stackpole Electronics, Inc.

RES 16 OHM 1/4W 1% AXIAL

501
RNF14FTD4K75

RNF14FTD4K75

Stackpole Electronics, Inc.

RES 4.75K OHM 1/4W 1% AXIAL

23188
RNF14BAE590R

RNF14BAE590R

Stackpole Electronics, Inc.

RES 590 OHM 1/4W .1% AXIAL

0
RNF14FTD215K

RNF14FTD215K

Stackpole Electronics, Inc.

RES 215K OHM 1/4W 1% AXIAL

0
CB10JB24R0

CB10JB24R0

Stackpole Electronics, Inc.

RES 24 OHM 10W 5% CERAMIC WW

0
WW1FT357R

WW1FT357R

Stackpole Electronics, Inc.

RES 357 OHM 1W 1% AXIAL

0
RNF14FTC4M53

RNF14FTC4M53

Stackpole Electronics, Inc.

RES 4.53M OHM 1/4W 1% AXIAL

0
RNF12FAD147K

RNF12FAD147K

Stackpole Electronics, Inc.

RES 147K OHM 1/2W 1% AXIAL

0
WW1FT3R74

WW1FT3R74

Stackpole Electronics, Inc.

RES 3.74 OHM 1W 1% AXIAL

0
RSMF2FT6K19

RSMF2FT6K19

Stackpole Electronics, Inc.

RES 6.19K OHM 2W 1% AXIAL

0

Resistors-Through Hole

1. Overview

Through Hole Resistors (THRs) are axial-leaded electronic components designed to limit current flow and divide voltages in circuits. They are mounted by inserting leads into printed circuit board (PCB) holes and soldering on the reverse side. As foundational passive components, THRs maintain circuit stability and precision across industries. Despite the rise of surface-mount devices, THRs remain critical for high-power applications and prototyping due to their durability and ease of manual handling.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Carbon Film ResistorsLow noise, stable performance, cost-effectiveGeneral-purpose electronics, consumer devices
Metal Film ResistorsHigh precision ( 0.1% tolerance), low temperature coefficientMedical instruments, test equipment
Wirewound ResistorsHigh power handling (up to 50W), accurate resistance valuesPower supplies, industrial machinery
Ceramic Composition ResistorsHigh surge current resistancePower line filters, lighting ballasts
Fusible ResistorsActs as both resistor and fuseOvercurrent protection in power circuits

3. Structure and Composition

Typical THRs feature:

  • Lead Wires: Tin-plated copper or silver alloys for solderability
  • Resistive Element: Carbon/metal film or wound nichrome wire
  • Insulating Body: Ceramic or glass-epoxy coating
  • Marking: Color bands (EIA-438B standard) or printed text

Advanced designs incorporate flame-retardant coatings and precision laser-trimmed elements for 0.01% tolerance.

4. Key Technical Specifications

ParameterTypical RangeImportance
Resistance Value1 to 100M Determines current/voltage control
Power Rating1/8W to 50WDefines maximum power dissipation
Tolerance 0.01% to 5%Indicates resistance accuracy
Temperature Coefficient 5ppm/ C to 300ppm/ CMeasures stability over temperature
Voltage Rating200V to 1000VPrevents dielectric breakdown

5. Application Fields

  • Consumer Electronics: Power management in TVs, audio equipment
  • Industrial Control: Motor speed controllers, PLC systems
  • Telecommunications: Signal conditioning in base stations
  • Automotive: Engine control units, LED lighting systems
  • Medical Devices: Precision measurement in diagnostic equipment

Case Study: Metal film resistors in ECG machines provide 0.1% tolerance for accurate heart signal detection.

6. Leading Manufacturers and Products

ManufacturerKey Products
Vishay Precision GroupY1485 series ( 0.005% tolerance wirewound)
Yageo CorporationMF-RC series (metal film, 1/4W to 2W)
Panasonic Electronic ComponentsEVR series (ceramic composition, 250V rating)
Bourns Inc.CR2800 series (fusible resistors)

7. Selection Guidelines

Key considerations:

  1. Determine required power dissipation (select 2x calculated wattage)
  2. Match tolerance to application needs (e.g., 0.1% for audio amplifiers)
  3. Verify temperature coefficient for operating environment
  4. Consider voltage ratings for high-voltage circuits
  5. Check RoHS compliance for environmental regulations

Example: Selecting a 10 , 10W wirewound resistor for a 24V DC motor driver circuit.

8. Industry Trends

Current development directions:

  • Miniaturization while maintaining power ratings (e.g., 5W resistors in 1210 package)
  • Advancements in laser trimming for sub-ppm level precision
  • Adoption of eco-friendly materials meeting REACH/SVHC standards
  • Integration with smart manufacturing systems for automated placement
  • Development of high-temperature resistant models (up to 300 C operating)

Market growth projections indicate a CAGR of 4.2% through 2030, driven by automotive electronics demand.

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