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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
CF14JT20R0

CF14JT20R0

Stackpole Electronics, Inc.

RES 20 OHM 1/4W 5% AXIAL

5780
CB5JBR220

CB5JBR220

Stackpole Electronics, Inc.

RES 0.22 OHM 5W 5% CERAMIC WW

0
RNF14FAD169K

RNF14FAD169K

Stackpole Electronics, Inc.

RES 169K OHM 1/4W 1% AXIAL

0
RNF1FTD3K32

RNF1FTD3K32

Stackpole Electronics, Inc.

RES 3.32K OHM 1W 1% AXIAL

0
RSMF1FT1K00

RSMF1FT1K00

Stackpole Electronics, Inc.

RES 1K OHM 1W 1% AXIAL

0
CFM14JT12K0

CFM14JT12K0

Stackpole Electronics, Inc.

RES 12K OHM 1/4W 5% CF MINI

8007
RNF12FTC348K

RNF12FTC348K

Stackpole Electronics, Inc.

RES 348K OHM 1/2W 1% AXIAL

0
RNF18FTE1K00

RNF18FTE1K00

Stackpole Electronics, Inc.

RES 1K OHM 1/8W 1% AXIAL

0
RC14JB180R

RC14JB180R

Stackpole Electronics, Inc.

RES 180 OHM 1/4W 5% AXIAL

0
RNF14FTD11R3

RNF14FTD11R3

Stackpole Electronics, Inc.

RES 11.3 OHM 1/4W 1% AXIAL

0
RC12KT1R50

RC12KT1R50

Stackpole Electronics, Inc.

RES 1.5 OHM 1/2W 10% AXIAL

0
RSF3FT1K00

RSF3FT1K00

Stackpole Electronics, Inc.

RES 1K OHM 3W 1% AXIAL

0
WW1JT2R70

WW1JT2R70

Stackpole Electronics, Inc.

RES 2.7 OHM 1W 5% AXIAL

0
RNF14FTC118K

RNF14FTC118K

Stackpole Electronics, Inc.

RES 118K OHM 1/4W 1% AXIAL

0
RNF14FAD750K

RNF14FAD750K

Stackpole Electronics, Inc.

RES 750K OHM 1/4W 1% AXIAL

0
WW2JB5R10

WW2JB5R10

Stackpole Electronics, Inc.

RES 5.1 OHM 1.5W 5% AXIAL

0
CF18JA330K

CF18JA330K

Stackpole Electronics, Inc.

RES 330K OHM 1/8W 5% AXIAL

0
RSF12GB3K30

RSF12GB3K30

Stackpole Electronics, Inc.

RES 3.3K OHM 1/2W 2% AXIAL

0
RNF14BAE612R

RNF14BAE612R

Stackpole Electronics, Inc.

RES 612 OHM 1/4W .1% AXIAL

0
CB15JB1R00

CB15JB1R00

Stackpole Electronics, Inc.

RES 1 OHM 15W 5% CERAMIC WW

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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