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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
CB15JB22R0

CB15JB22R0

Stackpole Electronics, Inc.

RES 22 OHM 15W 5% CERAMIC WW

0
RNF18FAD2M00

RNF18FAD2M00

Stackpole Electronics, Inc.

RES 2M OHM 1/8W 1% AXIAL

0
RNF12FTD4K22

RNF12FTD4K22

Stackpole Electronics, Inc.

RES 4.22K OHM 1/2W 1% AXIAL

0
RNF12FTC1K96

RNF12FTC1K96

Stackpole Electronics, Inc.

RES 1.96K OHM 1/2W 1% AXIAL

0
RNMF14FAD910R

RNMF14FAD910R

Stackpole Electronics, Inc.

RES 910 OHM 1/4W 1% AXIAL

0
RNF14FTC332R

RNF14FTC332R

Stackpole Electronics, Inc.

RES 332 OHM 1/4W 1% AXIAL

0
WW12FT178R

WW12FT178R

Stackpole Electronics, Inc.

RES 178 OHM 0.4W 1% AXIAL

0
RSF2JT2R70

RSF2JT2R70

Stackpole Electronics, Inc.

RES 2.7 OHM 2W 5% AXIAL

0
VM5JB20R0

VM5JB20R0

Stackpole Electronics, Inc.

RES 20 OHM 5W 5% RADIAL

0
RSMF1JT1R80

RSMF1JT1R80

Stackpole Electronics, Inc.

RES 1.8 OHM 1W 5% AXIAL

0
RNMF12FTD54R9

RNMF12FTD54R9

Stackpole Electronics, Inc.

RES 54.9 OHM 1/2W 1% AXIAL

0
RNMF14FTD5K76

RNMF14FTD5K76

Stackpole Electronics, Inc.

RES 5.76K OHM 1/4W 1% AXIAL

0
RNF18FAD4K99

RNF18FAD4K99

Stackpole Electronics, Inc.

RES 4.99K OHM 1/8W 1% AXIAL

0
WW7JT15R0

WW7JT15R0

Stackpole Electronics, Inc.

RES 15 OHM 6.5W 5% AXIAL

0
RNF14FTC787R

RNF14FTC787R

Stackpole Electronics, Inc.

RES 787 OHM 1/4W 1% AXIAL

0
RNF14BAE8K06

RNF14BAE8K06

Stackpole Electronics, Inc.

RES 8.06K OHM 1/4W .1% AXIAL

0
RNF14FTD8K66

RNF14FTD8K66

Stackpole Electronics, Inc.

RES 8.66K OHM 1/4W 1% AXIAL

4126
RSF1JB22R0

RSF1JB22R0

Stackpole Electronics, Inc.

RES 22 OHM 1W 5% AXIAL

0
RNF18FAD3K57

RNF18FAD3K57

Stackpole Electronics, Inc.

RES 3.57K OHM 1/8W 1% AXIAL

0
RNF14BAE715R

RNF14BAE715R

Stackpole Electronics, Inc.

RES 715 OHM 1/4W .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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