UB5C-82RF1 Equivalent & Substitute Parts

Part Overview

The UB5C-82RF1 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 currently active in production with 615 units in stock. Substitute parts may be required due to inventory constraints, supply chain disruptions, or application-specific packaging preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

UB5C-82RF1

RiedonIn Stock: 680UB5C-82RF1 Datasheet

Current PartRFQ

45F82RE

OhmiteIn Stock: 118545F82RE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The UB5C-82RF1 can be substituted with the 45F82RE based on the following matching parameters:

• Resistance value: 82 Ohms
• Tolerance: ±1%
• Power rating: 5W
• Composition: Wirewound
• Package type: Axial
• Temperature coefficient: ±20ppm/°C
• RoHS compliance: ROHS3 Compliant
• Termination count: 2

Both parts meet the electrical specifications required for current sensing applications in axial wirewound resistor form factor. Physical dimensions differ between the two parts; however, both are through-hole axial components suitable for PCB mounting.

Parameter Comparison

Engineering Selection Recommendations

Both the UB5C-82RF1 and 45F82RE meet identical electrical specifications and regulatory compliance requirements. Selection between these parts should be based on:

• PCB layout constraints: The UB5C-82RF1 has a smaller physical footprint (6.40mm x 12.70mm) compared to the 45F82RE (8.70mm x 23.80mm). Applications with space limitations should prioritize the Riedon part.
• Inventory availability: The 45F82RE has higher stock availability (1172 units) versus the UB5C-82RF1 (615 units).
• Supply chain requirements: Both parts carry identical regulatory certifications (ROHS3, REACH Unaffected, EAR99), making either suitable for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the 45F82RE directly replace the UB5C-82RF1 in all applications?

A: Yes, from an electrical standpoint. Both parts have identical resistance, tolerance, power rating, temperature coefficient, and composition. However, the 45F82RE is physically larger. Verify PCB layout compatibility before substitution.

Q: What are the key parameters that determine substitutability?

A: Resistance value (82 Ohms), tolerance (±1%), power rating (5W), composition (wirewound), package type (axial), and temperature coefficient (±20ppm/°C) must match. Both parts satisfy these criteria.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. They share the same HTSUS code (8533.21.0080).

Q: What is the primary difference between these two parts?

A: Physical dimensions. The UB5C-82RF1 measures 6.40mm x 12.70mm, while the 45F82RE measures 8.70mm x 23.80mm. This affects PCB layout and thermal dissipation characteristics.

Q: Can I use the 45F82RE in a space-constrained design originally specified for the UB5C-82RF1?

A: No. The larger dimensions of the 45F82RE may not fit in layouts designed for the smaller UB5C-82RF1 footprint.