UB3C-820RF8 Equivalent & Substitute Parts

Part Overview

The UB3C-820RF8 is an 820 Ohms ±1% 3W 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 1,063 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set.

Substiute Parts

UB3C-820RF8

RiedonIn Stock: 1119UB3C-820RF8 Datasheet

Current PartRFQ

43F820E

OhmiteIn Stock: 85343F820E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 43F820E from Ohmite qualifies as a substitute for the UB3C-820RF8 based on the following critical parameters:

• Resistance value: 820 Ohms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 3W (exact match)
• Composition: Wirewound (exact match)
• Package: Axial (exact match)
• Temperature coefficient: ±20ppm/°C (exact match)
• RoHS compliance: ROHS3 Compliant (exact match)
• Terminations: 2 (exact match)

Both parts maintain identical electrical performance specifications and mechanical compatibility within the axial package category. The substitute part is suitable for direct replacement in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the UB3C-820RF8 and 43F820E are active production components with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on availability, packaging format requirements, and supply chain considerations. The UB3C-820RF8 is supplied in Tape & Reel packaging with 1,063 units currently in stock. The 43F820E is supplied in Bulk packaging with 759 units in stock. Both parts meet identical electrical and mechanical specifications for 820 Ohm 3W axial wirewound resistor applications.

Frequently Asked Questions (FAQ)

Q: Can the 43F820E replace the UB3C-820RF8 in existing designs?

A: Yes. Both parts share identical resistance, tolerance, power rating, composition, package type, and temperature coefficient specifications. Direct substitution is electrically and mechanically compatible.

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

A: The primary difference is packaging format. The UB3C-820RF8 is supplied in Tape & Reel format, while the 43F820E is supplied in Bulk format. Physical dimensions differ slightly: UB3C-820RF8 is 0.157" Dia x 0.350" L, while 43F820E is 0.220" Dia x 0.594" L.

Q: Are both parts suitable for current sensing applications?

A: The UB3C-820RF8 is specifically designated for current sensing with additional features including flame-proof, moisture-resistant, and pulse-withstanding characteristics. The 43F820E is a general-purpose wirewound resistor. Application requirements should determine which part is appropriate.

Q: Do both parts meet regulatory compliance requirements?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic components.

Q: What are the operating temperature ranges?

A: The UB3C-820RF8 operates from -55°C to 250°C. Operating temperature range for the 43F820E is not specified in the provided data.