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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNF18FAD1K50

RNF18FAD1K50

Stackpole Electronics, Inc.

RES 1.5K OHM 1/8W 1% AXIAL

0
RNF18FAD9K09

RNF18FAD9K09

Stackpole Electronics, Inc.

RES 9.09K OHM 1/8W 1% AXIAL

0
CF18JA1M00

CF18JA1M00

Stackpole Electronics, Inc.

RES 1M OHM 1/8W 5% AXIAL

0
CF14JT33R0

CF14JT33R0

Stackpole Electronics, Inc.

RES 33 OHM 1/4W 5% AXIAL

62450
RSMF2JT13K0

RSMF2JT13K0

Stackpole Electronics, Inc.

RES 13K OHM 2W 5% AXIAL

0
RSF1JB13K0

RSF1JB13K0

Stackpole Electronics, Inc.

RES 13K OHM 1W 5% AXIAL

0
CFM14JA13K0

CFM14JA13K0

Stackpole Electronics, Inc.

RES 13K OHM 1/4W 5% CF MINI

0
RC12KT8M20

RC12KT8M20

Stackpole Electronics, Inc.

RES 8.2M OHM 1/2W 10% AXIAL

0
RNF18FTE9R53

RNF18FTE9R53

Stackpole Electronics, Inc.

RES 9.53 OHM 1/8W 1% AXIAL

0
RSMF5JT3R90

RSMF5JT3R90

Stackpole Electronics, Inc.

RES 3.9 OHM 5W 5% AXIAL

0
HDM14JT1M30

HDM14JT1M30

Stackpole Electronics, Inc.

RES 1.3M OHM 1/4W 5% AXIAL

0
RNF12FTD16R2

RNF12FTD16R2

Stackpole Electronics, Inc.

RES 16.2 OHM 1/2W 1% AXIAL

0
RNF14BTC6K34

RNF14BTC6K34

Stackpole Electronics, Inc.

RES 6.34K OHM 1/4W .1% AXIAL

0
RNF14BTD28K7

RNF14BTD28K7

Stackpole Electronics, Inc.

RES 28.7K OHM 1/4W .1% AXIAL

0
CFM14JT8R20

CFM14JT8R20

Stackpole Electronics, Inc.

RES 8.2 OHM 1/4W 5% CF MINI

5053
RC12JB51R0

RC12JB51R0

Stackpole Electronics, Inc.

RES 51 OHM 1/2W 5% AXIAL

0
RNF14BTC1K87

RNF14BTC1K87

Stackpole Electronics, Inc.

RES 1.87K OHM 1/4W .1% AXIAL

0
WW3FT10R0

WW3FT10R0

Stackpole Electronics, Inc.

RES 10 OHM 3W 1% AXIAL

1203
RNMF14FAD12K0

RNMF14FAD12K0

Stackpole Electronics, Inc.

RES 12K OHM 1/4W 1% AXIAL

0
RSMF2FT453R

RSMF2FT453R

Stackpole Electronics, Inc.

RES 453 OHM 2W 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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