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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RC14KT220K

RC14KT220K

Stackpole Electronics, Inc.

RES 220K OHM 1/4W 10% AXIAL

3292
CB2JB22R0

CB2JB22R0

Stackpole Electronics, Inc.

RES 22 OHM 2W 5% CERAMIC WW

0
RSMF1FTR510

RSMF1FTR510

Stackpole Electronics, Inc.

RES 0.51 OHM 1W 1% AXIAL

0
RNF14BAE32K4

RNF14BAE32K4

Stackpole Electronics, Inc.

RES 32.4K OHM 1/4W .1% AXIAL

0
RNF14FTD5M11

RNF14FTD5M11

Stackpole Electronics, Inc.

RES 5.11M OHM 1/4W 1% AXIAL

0
RNMF14FAD75K0

RNMF14FAD75K0

Stackpole Electronics, Inc.

RES 75K OHM 1/4W 1% AXIAL

0
RNF14JTD4K70

RNF14JTD4K70

Stackpole Electronics, Inc.

RES 4.7K OHM 1/4W 5% AXIAL

0
RNF18FTD154R

RNF18FTD154R

Stackpole Electronics, Inc.

RES 154 OHM 1/8W 1% AXIAL

0
RSMF5JT33K0

RSMF5JT33K0

Stackpole Electronics, Inc.

RES 33K OHM 5W 5% AXIAL

0
RSMF12JTR240

RSMF12JTR240

Stackpole Electronics, Inc.

RES 0.24 OHM 1/2W 5% AXIAL

0
RNF14FTC10R5

RNF14FTC10R5

Stackpole Electronics, Inc.

RES 10.5 OHM 1/4W 1% AXIAL

0
CFM12JT7K50

CFM12JT7K50

Stackpole Electronics, Inc.

RES 7.5K OHM 1/2W 5% CF MINI

0
RNMF14FTD71K5

RNMF14FTD71K5

Stackpole Electronics, Inc.

RES 71.5K OHM 1/4W 1% AXIAL

0
RNF14BTD187R

RNF14BTD187R

Stackpole Electronics, Inc.

RES 187 OHM 1/4W .1% AXIAL

0
WW12FT332R

WW12FT332R

Stackpole Electronics, Inc.

RES 332 OHM 0.4W 1% AXIAL

0
RNF12FTC102R

RNF12FTC102R

Stackpole Electronics, Inc.

RES 102 OHM 1/2W 1% AXIAL

0
CF18JT4K30

CF18JT4K30

Stackpole Electronics, Inc.

RES 4.3K OHM 1/8W 5% AXIAL

5643
RNF18FTD5M11

RNF18FTD5M11

Stackpole Electronics, Inc.

RES 5.11M OHM 1/8W 1% AXIAL

0
RSF2JT47K0

RSF2JT47K0

Stackpole Electronics, Inc.

RES 47K OHM 2W 5% AXIAL

24
CFM14JT6K20

CFM14JT6K20

Stackpole Electronics, Inc.

RES 6.2K OHM 1/4W 5% CF MINI

4175

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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