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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNMF12FTD4K53

RNMF12FTD4K53

Stackpole Electronics, Inc.

RES 4.53K OHM 1/2W 1% AXIAL

0
RNMF14FTC33R0

RNMF14FTC33R0

Stackpole Electronics, Inc.

RES 33 OHM 1/4W 1% AXIAL

35381
CB10JB91R0

CB10JB91R0

Stackpole Electronics, Inc.

RES 91 OHM 10W 5% CERAMIC WW

0
RC14KB1R30

RC14KB1R30

Stackpole Electronics, Inc.

RES 1.3 OHM 1/4W 10% AXIAL

0
RNF18FTD63R4

RNF18FTD63R4

Stackpole Electronics, Inc.

RES 63.4 OHM 1/8W 1% AXIAL

0
RNF14FAD15K8

RNF14FAD15K8

Stackpole Electronics, Inc.

RES 15.8K OHM 1/4W 1% AXIAL

0
RNF14BTC37K0

RNF14BTC37K0

Stackpole Electronics, Inc.

RES 37K OHM 1/4W .1% AXIAL

0
RNF14FTD3M83

RNF14FTD3M83

Stackpole Electronics, Inc.

RES 3.83M OHM 1/4W 1% AXIAL

0
CF18JT680R

CF18JT680R

Stackpole Electronics, Inc.

RES 680 OHM 1/8W 5% AXIAL

14501
CFM12JT8K20

CFM12JT8K20

Stackpole Electronics, Inc.

RES 8.2K OHM 1/2W 5% CF MINI

3956
RSF12JT1R50

RSF12JT1R50

Stackpole Electronics, Inc.

RES 1.5 OHM 1/2W 5% AXIAL

0
ASRM2JA10K0

ASRM2JA10K0

Stackpole Electronics, Inc.

RES 10K OHM 2W 5% AXIAL

752
CF18JT300R

CF18JT300R

Stackpole Electronics, Inc.

RES 300 OHM 1/8W 5% AXIAL

6407
RSF3JT110R

RSF3JT110R

Stackpole Electronics, Inc.

RES 110 OHM 3W 5% AXIAL

0
RC12KT1K80

RC12KT1K80

Stackpole Electronics, Inc.

RES 1.8K OHM 1/2W 10% AXIAL

0
RSMF1JB22K0

RSMF1JB22K0

Stackpole Electronics, Inc.

RES 22K OHM 1W 5% AXIAL

0
RNF18FTD191K

RNF18FTD191K

Stackpole Electronics, Inc.

RES 191K OHM 1/8W 1% AXIAL

0
RNF12BTC100R

RNF12BTC100R

Stackpole Electronics, Inc.

RES 100 OHM 1/2W .1% AXIAL

0
RNMF14FTD825R

RNMF14FTD825R

Stackpole Electronics, Inc.

RES 825 OHM 1/4W 1% AXIAL

0
CF18JT39K0

CF18JT39K0

Stackpole Electronics, Inc.

RES 39K OHM 1/8W 5% AXIAL

2147483647

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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