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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNF18FTD21K5

RNF18FTD21K5

Stackpole Electronics, Inc.

RES 21.5K OHM 1/8W 1% AXIAL

0
RNF12FTC11K8

RNF12FTC11K8

Stackpole Electronics, Inc.

RES 11.8K OHM 1/2W 1% AXIAL

0
RNF18BTD20K0

RNF18BTD20K0

Stackpole Electronics, Inc.

RES 20K OHM 1/8W .1% AXIAL

0
WW10JT6R80

WW10JT6R80

Stackpole Electronics, Inc.

RES 6.8 OHM 10W 5% AXIAL

0
RNF12FTD442R

RNF12FTD442R

Stackpole Electronics, Inc.

RES 442 OHM 1/2W 1% AXIAL

0
RNF14FTD2K61

RNF14FTD2K61

Stackpole Electronics, Inc.

RES 2.61K OHM 1/4W 1% AXIAL

0
RNF14BTC1K18

RNF14BTC1K18

Stackpole Electronics, Inc.

RES 1.18K OHM 1/4W 0.1% AXIAL

0
RNF14FAC165K

RNF14FAC165K

Stackpole Electronics, Inc.

RES 165K OHM 1/4W 1% AXIAL

0
RSMF3JA330R-C1

RSMF3JA330R-C1

Stackpole Electronics, Inc.

RES 330 OHM 3W 5% AXIAL

0
RNF14FTD169R

RNF14FTD169R

Stackpole Electronics, Inc.

RES 169 OHM 1/4W 1% AXIAL

0
WW1FT2K61

WW1FT2K61

Stackpole Electronics, Inc.

RES 2.61K OHM 1W 1% AXIAL

0
RNV14FTL620K

RNV14FTL620K

Stackpole Electronics, Inc.

RES 620K OHM 1/4W 1% AXIAL

0
RNF14DTD10K0

RNF14DTD10K0

Stackpole Electronics, Inc.

RES 10K OHM 1/4W .5% AXIAL

0
RNF14BAE499R

RNF14BAE499R

Stackpole Electronics, Inc.

RES 499 OHM 1/4W .1% AXIAL

0
WW1FT39R2

WW1FT39R2

Stackpole Electronics, Inc.

RES 39.2 OHM 1W 1% AXIAL

0
RSMF3JA180K-C1

RSMF3JA180K-C1

Stackpole Electronics, Inc.

RES 180K OHM 3W 5% AXIAL

0
ASRM1JA22K0

ASRM1JA22K0

Stackpole Electronics, Inc.

RES 22K OHM 1W 5% AXIAL

0
RNF12FTC750K

RNF12FTC750K

Stackpole Electronics, Inc.

RES 750K OHM 1/2W 1% AXIAL

0
RNF12FTD1M21

RNF12FTD1M21

Stackpole Electronics, Inc.

RES 1.21M OHM 1/2W 1% AXIAL

0
RNMF14FTC2K20

RNMF14FTC2K20

Stackpole Electronics, Inc.

RES 2.2K OHM 1/4W 1% AXIAL

6022

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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