UB5C-22RF8 Equivalent & Substitute Parts

Part Overview

The UB5C-22RF8 is a 22 Ohm, 1% tolerance, 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 Active in product status with 1017 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

UB5C-22RF8

RiedonIn Stock: 1060UB5C-22RF8 Datasheet

Current PartRFQ

45F22RE

OhmiteIn Stock: 73845F22RE Datasheet

MFR RecommendedRFQ

RS00522R00FE73

Vishay DaleIn Stock: 1248RS00522R00FE73 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UB5C-22RF8 is determined by strict equivalence across the following critical parameters:

• Resistance value: 22 Ohms
• Tolerance: ±1%
• Power rating: 5W
• Composition: Wirewound
• Package type: Axial
• Temperature coefficient: ±20ppm/°C
• Number of terminations: 2

The identified substitute parts meet all core electrical and mechanical requirements. Physical dimensions may vary within acceptable assembly tolerances for through-hole axial components. Operating temperature ranges and compliance certifications are documented for each part to support application-specific selection.

Parameter Comparison

Engineering Selection Recommendations

All three parts meet the core electrical specifications for 22 Ohm, 1% tolerance, 5W axial wirewound resistor applications. Selection should be based on the following factors:

UB5C-22RF8 (Riedon): Primary choice with ROHS3 compliance, REACH Unaffected status, and documented current sensing features including flame-proof and pulse-withstanding characteristics. Smallest physical footprint (6.40mm x 12.70mm) suitable for space-constrained layouts. Highest inventory availability at 1017 units.

45F22RE (Ohmite): Extended operating temperature range to 275°C provides margin for high-temperature applications. RoHS compliant with bulk packaging. Larger physical dimensions (8.70mm x 23.80mm) require board layout verification. REACH status vendor-undefined requires compliance confirmation for regulated markets.

RS00522R00FE73 (Vishay Dale): ROHS3 compliant with REACH Unaffected status. Extended lower operating temperature limit to -65°C supports cryogenic or extreme cold environments. Moisture-resistant feature documented. Intermediate physical dimensions (7.92mm x 22.23mm). Cut tape packaging supports automated assembly. Highest inventory availability at 1212 units.

Frequently Asked Questions (FAQ)

Q: Can 45F22RE replace UB5C-22RF8 in all applications?

A: Electrical equivalence is confirmed across resistance, tolerance, power rating, and temperature coefficient. Physical dimensions differ (8.70mm x 23.80mm vs. 6.40mm x 12.70mm), requiring PCB layout verification. REACH compliance status is vendor-undefined; confirm regulatory requirements for your application.

Q: What is the primary difference between RS00522R00FE73 and UB5C-22RF8?

A: Both parts are electrically equivalent with identical resistance, tolerance, power rating, and temperature coefficient. RS00522R00FE73 extends the lower operating temperature to -65°C and includes documented moisture-resistant features. Physical dimensions are intermediate (7.92mm x 22.23mm). Packaging differs: UB5C-22RF8 is tape & reel; RS00522R00FE73 is cut tape.

Q: Are all substitute parts RoHS compliant?

A: UB5C-22RF8 and RS00522R00FE73 are ROHS3 compliant. 45F22RE is RoHS compliant. Both certifications meet regulatory requirements; confirm specific RoHS version requirements for your market.

Q: Which substitute part has the best inventory availability?

A: RS00522R00FE73 has the highest inventory at 1212 units. UB5C-22RF8 has 1017 units, and 45F22RE has 710 units.

Q: Can these parts be used interchangeably in PCB assembly?

A: Electrical substitution is direct. Physical dimensions vary, requiring PCB footprint verification. Axial package type is consistent across all parts. Confirm lead spacing and hole diameter compatibility with your board design before assembly.

Q: What packaging options are available?

A: UB5C-22RF8 is supplied in tape & reel (TR). 45F22RE is supplied in bulk. RS00522R00FE73 is supplied in cut tape (CT). Select based on assembly process requirements and volume.