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Resistors-Through Hole

Image Part Number Description / PDF Quantity Rfq
RNF14FTC174K

RNF14FTC174K

Stackpole Electronics, Inc.

RES 174K OHM 1/4W 1% AXIAL

0
RNF14BTT1K00

RNF14BTT1K00

Stackpole Electronics, Inc.

RES 1K OHM 1/4W 0.1% AXIAL

0
WW12JTR240

WW12JTR240

Stackpole Electronics, Inc.

RES 0.24 OHM 0.4W 5% AXIAL

0
RNF14BAE124R

RNF14BAE124R

Stackpole Electronics, Inc.

RES 124 OHM 1/4W .1% AXIAL

0
CB7JBR270

CB7JBR270

Stackpole Electronics, Inc.

RES 0.27 OHM 7W 5% CERAMIC WW

0
RNF1FTD1M00

RNF1FTD1M00

Stackpole Electronics, Inc.

RES 1M OHM 1W 1% AXIAL

0
RSF1JBR620

RSF1JBR620

Stackpole Electronics, Inc.

RES 0.62 OHM 1W 5% AXIAL

0
RNMF14FTD21R0

RNMF14FTD21R0

Stackpole Electronics, Inc.

RES 21 OHM 1/4W 1% AXIAL

0
WW1FT75R0

WW1FT75R0

Stackpole Electronics, Inc.

RES 75 OHM 1W 1% AXIAL

0
MR3FT30L0

MR3FT30L0

Stackpole Electronics, Inc.

RES 0.03 OHM 3W 1% AXIAL

0
CB7JB100R

CB7JB100R

Stackpole Electronics, Inc.

RES 100 OHM 7W 5% CERAMIC WW

0
CF12JA5K10

CF12JA5K10

Stackpole Electronics, Inc.

RES 5.1K OHM 1/2W 5% AXIAL

0
RNMF14FTD29K4

RNMF14FTD29K4

Stackpole Electronics, Inc.

RES 29.4K OHM 1/4W 1% AXIAL

0
CFM12JT2K40

CFM12JT2K40

Stackpole Electronics, Inc.

RES 2.4K OHM 1/2W 5% CF MINI

5280
RNMF12FTD1R62

RNMF12FTD1R62

Stackpole Electronics, Inc.

RES 1.62 OHM 1/2W 1% AXIAL

0
RNF14FAD287R

RNF14FAD287R

Stackpole Electronics, Inc.

RES 287 OHM 1/4W 1% AXIAL

0
RNF14FTC267K

RNF14FTC267K

Stackpole Electronics, Inc.

RES 267K OHM 1/4W 1% AXIAL

0
RNF14BTE226R

RNF14BTE226R

Stackpole Electronics, Inc.

RES 226 OHM 1/4W .1% AXIAL

0
RSMF1FT3R30

RSMF1FT3R30

Stackpole Electronics, Inc.

RES 3.3 OHM 1W 1% AXIAL

0
CFM14JT24K0

CFM14JT24K0

Stackpole Electronics, Inc.

RES 24K OHM 1/4W 5% CF MINI

4010

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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