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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNF14FAD10R0

RNF14FAD10R0

Stackpole Electronics, Inc.

RES 10 OHM 1/4W 1% AXIAL

0
RNMF14FTC22K0

RNMF14FTC22K0

Stackpole Electronics, Inc.

RES 22K OHM 1/4W 1% AXIAL

21916
RNF14FTC76R8

RNF14FTC76R8

Stackpole Electronics, Inc.

RES 76.8 OHM 1/4W 1% AXIAL

0
WW1FT3R83

WW1FT3R83

Stackpole Electronics, Inc.

RES 3.83 OHM 1W 1% AXIAL

0
RNMF14FTD23K7

RNMF14FTD23K7

Stackpole Electronics, Inc.

RES 23.7K OHM 1/4W 1% AXIAL

0
RNF14FTD7M50

RNF14FTD7M50

Stackpole Electronics, Inc.

RES 7.5M OHM 1/4W 1% AXIAL

0
RNF12FTD42K2

RNF12FTD42K2

Stackpole Electronics, Inc.

RES 42.2K OHM 1/2W 1% AXIAL

0
RNF18FTD383K

RNF18FTD383K

Stackpole Electronics, Inc.

RES 383K OHM 1/8W 1% AXIAL

0
CF12JT15K0

CF12JT15K0

Stackpole Electronics, Inc.

RES 15K OHM 1/2W 5% AXIAL

29695
WW12FB37R4

WW12FB37R4

Stackpole Electronics, Inc.

RES 37.4 OHM 0.4W 1% AXIAL

0
CF12JT2M20

CF12JT2M20

Stackpole Electronics, Inc.

RES 2.2M OHM 1/2W 5% AXIAL

0
RNMF14FTD43K2

RNMF14FTD43K2

Stackpole Electronics, Inc.

RES 43.2K OHM 1/4W 1% AXIAL

0
CB10JBR910

CB10JBR910

Stackpole Electronics, Inc.

RES 0.91 OHM 10W 5% CERAMIC WW

0
RSMF12JT10R0

RSMF12JT10R0

Stackpole Electronics, Inc.

RES 10 OHM 1/2W 5% AXIAL

0
CF14JT360R

CF14JT360R

Stackpole Electronics, Inc.

RES 360 OHM 1/4W 5% AXIAL

5702
RNF18FAD1K18

RNF18FAD1K18

Stackpole Electronics, Inc.

RES 1.18K OHM 1/8W 1% AXIAL

0
RNMF12FTD12K4

RNMF12FTD12K4

Stackpole Electronics, Inc.

RES 12.4K OHM 1/2W 1% AXIAL

0
RC12JT3R90

RC12JT3R90

Stackpole Electronics, Inc.

RES 3.9 OHM 1/2W 5% AXIAL

0
RNF14FTD6K20

RNF14FTD6K20

Stackpole Electronics, Inc.

RES 6.2K OHM 1/4W 1% AXIAL

0
WW10FT75R0

WW10FT75R0

Stackpole Electronics, Inc.

RES 75 OHM 10W 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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