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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RSMF1JT10K0

RSMF1JT10K0

Stackpole Electronics, Inc.

RES 10K OHM 1W 5% AXIAL

0
HDM14JT820R

HDM14JT820R

Stackpole Electronics, Inc.

RES 820 OHM 1/4W 5% AXIAL

0
RNF12JTD68R0

RNF12JTD68R0

Stackpole Electronics, Inc.

RES 68 OHM 1/2W 5% AXIAL

0
RNF14FTD24R9

RNF14FTD24R9

Stackpole Electronics, Inc.

RES 24.9 OHM 1/4W 1% AXIAL

6477
RNMF14FTD2K94

RNMF14FTD2K94

Stackpole Electronics, Inc.

RES 2.94K OHM 1/4W 1% AXIAL

0
RC12JB10R0

RC12JB10R0

Stackpole Electronics, Inc.

RES 10 OHM 1/2W 5% AXIAL

0
RNF18FTD9K09

RNF18FTD9K09

Stackpole Electronics, Inc.

RES 9.09K OHM 1/8W 1% AXIAL

688
RNF12CTE100R

RNF12CTE100R

Stackpole Electronics, Inc.

RES 100 OHM 1/2W .25% AXIAL

0
RSMF2JB130R

RSMF2JB130R

Stackpole Electronics, Inc.

RES 130 OHM 2W 5% AXIAL

0
RNF14FTD200R

RNF14FTD200R

Stackpole Electronics, Inc.

RES 200 OHM 1/4W 1% AXIAL

5325
RSMF2FT73R2

RSMF2FT73R2

Stackpole Electronics, Inc.

RES 73.2 OHM 2W 1% AXIAL

0
RSMF12JT5R60

RSMF12JT5R60

Stackpole Electronics, Inc.

RES 5.6OHM 1/2W 5% AXIAL

0
RNF12FTD1K27

RNF12FTD1K27

Stackpole Electronics, Inc.

RES 1.27K OHM 1/2W 1% AXIAL

0
RNF12DBC825K

RNF12DBC825K

Stackpole Electronics, Inc.

RES 825K OHM 1/2W 0.5% AXIAL

0
RSMF2GT10R0

RSMF2GT10R0

Stackpole Electronics, Inc.

RES 10 OHM 2W 2% AXIAL

0
CF18JT330K

CF18JT330K

Stackpole Electronics, Inc.

RES 330K OHM 1/8W 5% AXIAL

25501
RNF14FTD14K7

RNF14FTD14K7

Stackpole Electronics, Inc.

RES 14.7K OHM 1/4W 1% AXIAL

3361
WW1JT4R70

WW1JT4R70

Stackpole Electronics, Inc.

RES 4.7 OHM 1W 5% AXIAL

0
RNF12BTD499R

RNF12BTD499R

Stackpole Electronics, Inc.

RES 499 OHM 1/2W .1% AXIAL

0
RNF14BAE7K59

RNF14BAE7K59

Stackpole Electronics, Inc.

RES 7.59K OHM 1/4W .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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