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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RSMF12JT16R0

RSMF12JT16R0

Stackpole Electronics, Inc.

RES 16 OHM 1/2W 5% AXIAL

0
RC12KT4R70

RC12KT4R70

Stackpole Electronics, Inc.

RES 4.7 OHM 1/2W 10% AXIAL

0
RSMF1JT160R

RSMF1JT160R

Stackpole Electronics, Inc.

RES 160 OHM 1W 5% AXIAL

0
RC14KT330K

RC14KT330K

Stackpole Electronics, Inc.

RES 330K OHM 1/4W 10% AXIAL

0
RSMF1JT4R70

RSMF1JT4R70

Stackpole Electronics, Inc.

RES 4.7 OHM 1W 5% AXIAL

994
RNF14FAD2K26

RNF14FAD2K26

Stackpole Electronics, Inc.

RES 2.26K OHM 1/4W 1% AXIAL

0
LVM5JB10L0

LVM5JB10L0

Stackpole Electronics, Inc.

RES 0.01 OHM 5W 5% RADIAL

0
RNF14FTD332K

RNF14FTD332K

Stackpole Electronics, Inc.

RES 332K OHM 1/4W 1% AXIAL

13027
RNF14FTD118R

RNF14FTD118R

Stackpole Electronics, Inc.

RES 118 OHM 1/4W 1% AXIAL

0
RNF14BAE3K61

RNF14BAE3K61

Stackpole Electronics, Inc.

RES 3.61K OHM 1/4W .1% AXIAL

0
CFM14JT5K60

CFM14JT5K60

Stackpole Electronics, Inc.

RES 5.6K OHM 1/4W 5% CF MINI

8437
RNF18BTE2K00

RNF18BTE2K00

Stackpole Electronics, Inc.

RES 2K OHM 1/8W 0.1% AXIAL

0
RNF14FTD35R7

RNF14FTD35R7

Stackpole Electronics, Inc.

RES 35.7 OHM 1/4W 1% AXIAL

0
RNF14BTD191K

RNF14BTD191K

Stackpole Electronics, Inc.

RES 191K OHM 1/4W 0.1% AXIAL

0
RNF14BTE825R

RNF14BTE825R

Stackpole Electronics, Inc.

RES 825 OHM 1/4W .1% AXIAL

0
RSF2GTR300

RSF2GTR300

Stackpole Electronics, Inc.

RES 0.3 OHM 2W 2% AXIAL

0
CFM12JT1K10

CFM12JT1K10

Stackpole Electronics, Inc.

RES 1.1K OHM 1/2W 5% CF MINI

4615
RNF14BAE45K9

RNF14BAE45K9

Stackpole Electronics, Inc.

RES 45.9K OHM 1/4W .1% AXIAL

0
RSMF12JT2R00

RSMF12JT2R00

Stackpole Electronics, Inc.

RES 2 OHM 1/2W 5% AXIAL

0
CFM12JT82R0

CFM12JT82R0

Stackpole Electronics, Inc.

RES 82 OHM 1/2W 5% CF MINI

9215

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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