FCA4100RJ Equivalent & Substitute Parts

Part Overview

The FCA4100RJ is a 100 Ohm, 4W radial wirewound resistor manufactured by TE Connectivity Passive Product. This component features flame retardant coating and safety-rated construction, designed for through-hole applications requiring high power dissipation in compact form factors. The FCA4100RJ is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

FCA4100RJ

TE Connectivity Passive ProductIn Stock: 723FCA4100RJ Datasheet

Current PartRFQ

FCB4100RJ

TE Connectivity Passive ProductIn Stock: 2175FCB4100RJ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FCA4100RJ is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

• Resistance value: 100 Ohms
• Tolerance: ±5%
• Power rating: 4W
• Composition: Wirewound
• Package configuration: Radial through-hole
• Temperature coefficient: ±20ppm/°C
• Operating temperature range: -55°C to 200°C
• Physical dimensions: 0.197" Dia x 0.953" L (5.00mm x 24.20mm)
• Safety features: Flame retardant coating
• Regulatory compliance: ROHS3 Compliant

The FCB4100RJ meets all specified parameters and is classified as a parametric equivalent. The primary distinction between the main part and substitute is packaging configuration (tape/reel versus bulk), which does not affect electrical or mechanical performance in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The FCB4100RJ is a direct parametric equivalent to the FCA4100RJ and is suitable for substitution in all applications where the original part was specified. Both components are manufactured by TE Connectivity Passive Product and maintain identical electrical characteristics, mechanical dimensions, and safety certifications.

Both parts carry ROHS3 compliance status and are rated for the same operating temperature range (-55°C to 200°C). The flame retardant coating and safety-rated construction are preserved in the substitute part, ensuring compliance with original design requirements.

The FCB4100RJ is available in bulk packaging, whereas the FCA4100RJ was supplied in standard packaging. This distinction affects procurement and handling procedures but does not impact circuit performance or component reliability.

Frequently Asked Questions (FAQ)

Q: Can the FCB4100RJ be used as a direct replacement for the FCA4100RJ in existing designs?

A: Yes. The FCB4100RJ is a parametric equivalent with identical electrical specifications, mechanical dimensions, and safety features. No circuit modifications are required.

Q: Are there differences in reliability or performance between these parts?

A: No. Both parts are manufactured by TE Connectivity Passive Product using identical wirewound construction, flame retardant coating, and safety features. Performance characteristics are equivalent across all specified parameters.

Q: What is the difference between the FCA4100RJ and FCB4100RJ?

A: The primary difference is packaging configuration. The FCA4100RJ uses standard packaging, while the FCB4100RJ is supplied in bulk packaging. This affects procurement logistics but not component performance.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the FCA4100RJ and FCB4100RJ are ROHS3 compliant and suitable for applications requiring regulatory compliance.

Q: Can these parts be used in high-temperature applications?

A: Yes. Both parts are rated for operating temperatures from -55°C to 200°C and are suitable for high-temperature circuit applications.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical radial package dimensions of 0.197" Dia x 0.953" L (5.00mm x 24.20mm), ensuring compatibility with existing PCB layouts and through-hole mounting patterns.