UB5C-82RF8 Equivalent & Substitute Parts

Part Overview

The UB5C-82RF8 is an 82 Ohm ±1% 5W axial wirewound resistor manufactured by Riedon. This through-hole component is designed for current sensing applications and features flame-proof, moisture-resistant, and pulse-withstanding characteristics. The part is actively produced and stocked, with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

UB5C-82RF8

RiedonIn Stock: 1261UB5C-82RF8 Datasheet

Current PartRFQ

45F82RE

OhmiteIn Stock: 118545F82RE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UB5C-82RF8 is determined by the following critical parameters:

• Resistance value: 82 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 5W (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Compliance: ROHS3 Compliant (minimum requirement)

The substitute part 45F82RE meets all critical electrical and mechanical parameters. Physical dimensions may vary within acceptable assembly tolerances for axial components. Both parts are actively produced and maintain equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both UB5C-82RF8 and 45F82RE are electrically and functionally equivalent for 82 Ohm 5W axial wirewound resistor applications. Selection between these parts is based on:

• Availability and inventory status
• Physical space constraints within the assembly (note dimensional differences)
• Packaging format requirements (Riedon supplied in Tape & Reel; Ohmite supplied in Bulk)
• Supplier lead time and cost considerations

Both parts maintain active production status and full ROHS3 compliance. The temperature coefficient and operating temperature range are identical, ensuring equivalent thermal performance in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can 45F82RE be used as a direct replacement for UB5C-82RF8?

A: Yes, electrically and mechanically. Both parts are 82 Ohm ±1% 5W axial wirewound resistors with identical temperature coefficients and compliance ratings. Physical dimensions differ; verify PCB layout accommodates the larger 45F82RE body (8.70mm diameter vs. 6.40mm).

Q: What are the key differences between these parts?

A: Electrical specifications are identical. Primary differences are physical dimensions, packaging format (Tape & Reel vs. Bulk), and manufacturer series designation. The 45F82RE is physically larger.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under the same HTSUS code (8533.21.0080).

Q: Which part should be selected for new designs?

A: Either part is suitable. Selection depends on PCB space availability, packaging preferences, and supply chain factors. Verify dimensional compatibility with your specific board layout.

Q: Is the temperature coefficient performance equivalent?

A: Yes. Both parts specify ±20ppm/°C temperature coefficient, ensuring identical thermal stability across the operating range.