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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RN55E2261BR36

RN55E2261BR36

Vishay / Dale

RES 2.26K OHM 1/8W .1% AXIAL

0
RWR82S82R5FSB12

RWR82S82R5FSB12

Vishay / Dale

RES 82.5 OHM 1.5W 1% AXIAL

0
CMF552K5000DHEK

CMF552K5000DHEK

Vishay / Dale

RES 2.5K OHM 1/2W 0.5% AXIAL

0
RN55C4322CBSL

RN55C4322CBSL

Vishay / Dale

RES 43.2K OHM 1/8W .25% AXIAL

0
CMF556K0000BEEA

CMF556K0000BEEA

Vishay / Dale

RES 6K OHM 1/2W 0.1% AXIAL

0
RNC60H2800DSB14

RNC60H2800DSB14

Vishay / Dale

RES 280 OHM 1/4W .5% AXIAL

0
RNC55H1503FRB14

RNC55H1503FRB14

Vishay / Dale

RES 150K OHM 1/8W 1% AXIAL

0
ROX5SSJ22K

ROX5SSJ22K

TE Connectivity AMP Connectors

RES 5W XSM M/OX 5% 22K

136
CMF7024R900FKBF

CMF7024R900FKBF

Vishay / Dale

RES 24.9 OHM 1.75W 1% AXIAL

0
RWR81S15R0DRRSL

RWR81S15R0DRRSL

Vishay / Dale

RES 15 OHM 1W 0.5% WW AXIAL

0
CPL03R0200JE31

CPL03R0200JE31

Vishay / Dale

RES 0.02 OHM 3W 5% AXIAL

0
RLR20C2002FPRE8

RLR20C2002FPRE8

Vishay / Dale

ERL-20 20K 1% T-1 RLR20C2002FP R

0
CMF7090R000FHEK

CMF7090R000FHEK

Vishay / Dale

RES 90 OHM 1.75W 1% AXIAL

0
RSMF12FT2K21

RSMF12FT2K21

Stackpole Electronics, Inc.

RES 2.21K OHM 1/2W 1% AXIAL

0
RNC50H66R5FSRSL

RNC50H66R5FSRSL

Vishay / Dale

RES 66.5 OHM 1/10W 1% AXIAL

0
RLR05C1372FSRE519

RLR05C1372FSRE519

Vishay / Dale

ERL-05-19 13.7K 1% T-1 RLR05C137

0
RNC55H7592DSBSL

RNC55H7592DSBSL

Vishay / Dale

RES 75.9K OHM 1/8W .5% AXIAL

0
PTF6552K300BZBF

PTF6552K300BZBF

Vishay / Dale

RES 52.3K OHM 1/4W 0.1% AXIAL

0
CMF551K2400BEEK

CMF551K2400BEEK

Vishay / Dale

RES 1.24K OHM 1/2W 0.1% AXIAL

0
RN55C4994FR36

RN55C4994FR36

Vishay / Dale

RES 4.99M OHM 1/8W 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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