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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNMF12FTD953K

RNMF12FTD953K

Stackpole Electronics, Inc.

RES 953K OHM 1/2W 1% AXIAL

0
RSMF12JB1K80

RSMF12JB1K80

Stackpole Electronics, Inc.

RES 1.8K OHM 1/2W 5% AXIAL

0
RSMF12JT560R

RSMF12JT560R

Stackpole Electronics, Inc.

RES 560OHM 1/2W 5% AXIAL

0
RNMF14FTD392K

RNMF14FTD392K

Stackpole Electronics, Inc.

RES 392K OHM 1/4W 1% AXIAL

0
RNF14FTD340K

RNF14FTD340K

Stackpole Electronics, Inc.

RES 340K OHM 1/4W 1% AXIAL

0
RNMF14FTD5K49

RNMF14FTD5K49

Stackpole Electronics, Inc.

RES 5.49K OHM 1/4W 1% AXIAL

0
RNF12FTD4R70

RNF12FTD4R70

Stackpole Electronics, Inc.

RES 4.7 OHM 1/2W 1% AXIAL

0
RNF14BTE14K0

RNF14BTE14K0

Stackpole Electronics, Inc.

RES 14K OHM 1/4W 0.1% AXIAL

0
RNF14BAC105R

RNF14BAC105R

Stackpole Electronics, Inc.

RES 105 OHM 1/4W .1% AXIAL

0
WW2FBR500

WW2FBR500

Stackpole Electronics, Inc.

RES 0.5 OHM 1.5W 1% AXIAL

0
RNF14FTC4M99

RNF14FTC4M99

Stackpole Electronics, Inc.

RES 4.99M OHM 1/4W 1% AXIAL

0
WW12JT220R

WW12JT220R

Stackpole Electronics, Inc.

RES 220 OHM 0.4W 5% AXIAL

0
RNF12FTC2K26

RNF12FTC2K26

Stackpole Electronics, Inc.

RES 2.26K OHM 1/2W 1% AXIAL

0
RC12JB1M80

RC12JB1M80

Stackpole Electronics, Inc.

RES 1.8M OHM 1/2W 5% AXIAL

0
RSF12JT2R20

RSF12JT2R20

Stackpole Electronics, Inc.

RES 2.2 OHM 1/2W 5% AXIAL

0
RNF14FTC1M82

RNF14FTC1M82

Stackpole Electronics, Inc.

RES 1.82M OHM 1/4W 1% AXIAL

0
HDM14JT330R

HDM14JT330R

Stackpole Electronics, Inc.

RES 330 OHM 1/4W 5% AXIAL

0
MR3FT50L0

MR3FT50L0

Stackpole Electronics, Inc.

RES 0.05 OHM 3W 1% AXIAL

3242
RNF12FTD2K61

RNF12FTD2K61

Stackpole Electronics, Inc.

RES 2.61K OHM 1/2W 1% AXIAL

0
CFM12JT3K90

CFM12JT3K90

Stackpole Electronics, Inc.

RES 3.9K OHM 1/2W 5% CF MINI

11407

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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