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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNF14FAD200K

RNF14FAD200K

Stackpole Electronics, Inc.

RES 200K OHM 1/4W 1% AXIAL

0
HDM14JT1R00

HDM14JT1R00

Stackpole Electronics, Inc.

RES 1 OHM 1/4W 5% AXIAL

0
RNF14FTC487K

RNF14FTC487K

Stackpole Electronics, Inc.

RES 487K OHM 1/4W 1% AXIAL

0
RNF12JTD470R

RNF12JTD470R

Stackpole Electronics, Inc.

RES 470 OHM 1/2W 5% AXIAL

0
RSMF3JB68R0

RSMF3JB68R0

Stackpole Electronics, Inc.

RES 68 OHM 3W 5% AXIAL

0
HDM14JT2K40

HDM14JT2K40

Stackpole Electronics, Inc.

RES 2.4K OHM 1/4W 5% AXIAL

0
RNF18FTD2R55

RNF18FTD2R55

Stackpole Electronics, Inc.

RES 2.55 OHM 1/8W 1% AXIAL

0
RNF1FTD499K

RNF1FTD499K

Stackpole Electronics, Inc.

RES 499K OHM 1W 1% AXIAL

0
CFM14JT6R80

CFM14JT6R80

Stackpole Electronics, Inc.

RES 6.8 OHM 1/4W 5% CF MINI

10000
PRNF14FTD46K4

PRNF14FTD46K4

Stackpole Electronics, Inc.

RES 46.4K OHM 1/4W 1% AXIAL

0
PCF14JT3M30

PCF14JT3M30

Stackpole Electronics, Inc.

RES 3.3M OHM 1/4W 5% AXIAL

0
JW80ZT0R00

JW80ZT0R00

Stackpole Electronics, Inc.

RES 0 OHM 4A JUMP AXIAL

146542
CF18JT2K20

CF18JT2K20

Stackpole Electronics, Inc.

RES 2.2K OHM 1/8W 5% AXIAL

2147483647
RSF2FB68R0

RSF2FB68R0

Stackpole Electronics, Inc.

RES 68 OHM 2W 1% AXIAL

0
RC14KB110K

RC14KB110K

Stackpole Electronics, Inc.

RES 110K OHM 10% 1/4W AXIAL

0
CF1JT100R

CF1JT100R

Stackpole Electronics, Inc.

RES 100 OHM 1W 5% AXIAL

0
CFF12JT1K00

CFF12JT1K00

Stackpole Electronics, Inc.

RES 1K OHM 1/2W 5% AXIAL

0
RNF12FTD150R

RNF12FTD150R

Stackpole Electronics, Inc.

RES 150 OHM 1/2W 1% AXIAL

0
RNF1FTD3K92

RNF1FTD3K92

Stackpole Electronics, Inc.

RES 3.92K OHM 1W 1% AXIAL

0
RSF1JT1R30

RSF1JT1R30

Stackpole Electronics, Inc.

RES 1.3 OHM 1W 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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