UB5C-680RF8 Equivalent & Substitute Parts

Part Overview

The UB5C-680RF8 is a 680 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 Active in product status with 1111 units currently in stock. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility requirements are met across alternative manufacturers.

Substiute Parts

UB5C-680RF8

RiedonIn Stock: 1215UB5C-680RF8 Datasheet

Current PartRFQ

45F680E

OhmiteIn Stock: 96745F680E Datasheet

MFR RecommendedRFQ

RS005680R0FE73

Vishay DaleIn Stock: 985RS005680R0FE73 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UB5C-680RF8 are qualified based on the following critical parameters:

• Resistance value: 680 Ohms
• Tolerance: ±1%
• Power rating: 5W
• Composition: Wirewound
• Package: Axial through-hole
• Temperature coefficient: ±20ppm/°C
• Termination count: 2

The identified substitutes maintain these core electrical and mechanical specifications. Physical dimensions may vary within acceptable assembly tolerances for axial-lead components. All substitutes are Active products with current manufacturing status and meet applicable compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

All three parts meet the core electrical requirements for 680 Ohm ±1% 5W axial wirewound resistor applications. Selection between the UB5C-680RF8, 45F680E, and RS005680R0FE73 should be based on the following factors:

UB5C-680RF8 (Riedon): Active product status with highest current inventory (1111 units). ROHS3 and REACH compliant. Specified operating range -55°C ~ 250°C. Includes current sense, flame-proof, and pulse-withstanding features. Supplied in Tape & Reel packaging.

45F680E (Ohmite): Active product status with 875 units in stock. RoHS compliant with extended upper operating temperature to 275°C. Supplied in Bulk packaging. REACH status listed as Vendor Undefined.

RS005680R0FE73 (Vishay Dale): Active product status with 938 units in stock. ROHS3 and REACH compliant. Extended lower operating temperature to -65°C. Moisture-resistant feature specified. Supplied in Cut Tape packaging.

Frequently Asked Questions (FAQ)

Q: Can the 45F680E replace the UB5C-680RF8 in all applications?

A: The 45F680E meets all core electrical specifications (680 Ohms ±1%, 5W, ±20ppm/°C). Physical dimensions differ (0.343" Dia x 0.937" L versus 0.250" Dia x 0.500" L), which may affect board layout and mechanical fit. REACH compliance status differs between parts.

Q: What is the difference in operating temperature ranges?

A: The UB5C-680RF8 operates from -55°C to 250°C. The 45F680E extends to 275°C at the upper limit. The RS005680R0FE73 extends to -65°C at the lower limit. Selection depends on the specific thermal environment of the application.

Q: Are there packaging differences between these substitutes?

A: Yes. The UB5C-680RF8 is supplied in Tape & Reel format. The 45F680E is supplied in Bulk packaging. The RS005680R0FE73 is supplied in Cut Tape format. Packaging selection affects handling, storage, and assembly processes.

Q: Do all parts meet RoHS compliance?

A: The UB5C-680RF8 and RS005680R0FE73 are ROHS3 compliant. The 45F680E is RoHS compliant. Both standards are acceptable for RoHS-regulated applications.

Q: Which substitute has the best REACH compliance documentation?

A: The UB5C-680RF8 and RS005680R0FE73 both list REACH Unaffected status. The 45F680E lists REACH status as Vendor Undefined, which may require clarification from the manufacturer for applications with strict REACH requirements.