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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNF14BTE26K1

RNF14BTE26K1

Stackpole Electronics, Inc.

RES 26.1K OHM 1/4W .1% AXIAL

0
RNF14FTD19K6

RNF14FTD19K6

Stackpole Electronics, Inc.

RES 19.6K OHM 1/4W 1% AXIAL

6957
RNF18BTE4K42

RNF18BTE4K42

Stackpole Electronics, Inc.

RES 4.42K OHM 1/8W 0.1% AXIAL

0
RNF14FTC232K

RNF14FTC232K

Stackpole Electronics, Inc.

RES 232K OHM 1/4W 1% AXIAL

0
RNF12JTD300R

RNF12JTD300R

Stackpole Electronics, Inc.

RES 300 OHM 1/2W 5% AXIAL

0
RNMF14FAD56K0

RNMF14FAD56K0

Stackpole Electronics, Inc.

RES 56K OHM 1/4W 1% AXIAL

0
WW12JB6R80

WW12JB6R80

Stackpole Electronics, Inc.

RES 6.8 OHM 0.4W 5% AXIAL

0
PCF14JT24R0

PCF14JT24R0

Stackpole Electronics, Inc.

RES 24 OHM 1/4W 5% AXIAL

0
RNF18FTD10R7

RNF18FTD10R7

Stackpole Electronics, Inc.

RES 10.7 OHM 1/8W 1% AXIAL

0
WW2AJT10K0

WW2AJT10K0

Stackpole Electronics, Inc.

RES 10K OHM 2.5W 5% AXIAL

0
RC14KT22R0

RC14KT22R0

Stackpole Electronics, Inc.

RES 22 OHM 1/4W 10% AXIAL

0
WW3JT3R90

WW3JT3R90

Stackpole Electronics, Inc.

RES 3.9 OHM 3W 5% AXIAL

0
CF14JT15M0

CF14JT15M0

Stackpole Electronics, Inc.

RES 15M OHM 1/4W 5% AXIAL

0
RNF18FAD18K2

RNF18FAD18K2

Stackpole Electronics, Inc.

RES 18.2K OHM 1/8W 1% AXIAL

0
RNF12GAD10K0

RNF12GAD10K0

Stackpole Electronics, Inc.

RES 10K OHM 1/2W 2% AXIAL

0
RNF18FTD82K0

RNF18FTD82K0

Stackpole Electronics, Inc.

RES 82K OHM 1/8W 1% AXIAL

0
RNF14FTC536R

RNF14FTC536R

Stackpole Electronics, Inc.

RES 536 OHM 1/4W 1% AXIAL

0
RC12JT16M0

RC12JT16M0

Stackpole Electronics, Inc.

RES 16M OHM 1/2W 5% AXIAL

0
RC12KT390R

RC12KT390R

Stackpole Electronics, Inc.

RES 390 OHM 1/2W 10% AXIAL

0
RSMF5JT47K0

RSMF5JT47K0

Stackpole Electronics, Inc.

RES 47K OHM 5W 5% 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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