UB5C-180RF8 Equivalent & Substitute Parts

Part Overview

The UB5C-180RF8 is a 180 Ohm, ±1% tolerance, 5W axial wirewound resistor manufactured by Riedon. This component is designed for through-hole applications requiring current sensing capabilities with enhanced reliability features including flame proof, moisture resistant, and pulse withstanding characteristics. The part is Active in product status and maintains full compliance with ROHS3 and REACH regulations. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific packaging needs.

Substiute Parts

UB5C-180RF8

RiedonIn Stock: 1013UB5C-180RF8 Datasheet

Current PartRFQ

45F180E

OhmiteIn Stock: 90245F180E Datasheet

MFR RecommendedRFQ

RS005180R0FE73

Vishay DaleIn Stock: 1623RS005180R0FE73 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UB5C-180RF8 are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical resistance value (180 Ohms), tolerance (±1%), power rating (5W), composition (wirewound), and temperature coefficient (±20ppm/°C).

Mechanical Compatibility: All substitute parts utilize axial package configuration with two terminations, ensuring direct form-fit compatibility in through-hole applications.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting the same environmental and safety standards as the primary part.

Operational Parameters: Operating temperature ranges and moisture sensitivity classifications are provided for each substitute to enable informed selection based on specific application requirements.

The identified substitutes are:

• 45F180E (Ohmite Ohmicone® 40 series)
• RS005180R0FE73 (Vishay Dale RS series)

Parameter Comparison

Engineering Selection Recommendations

All three parts meet the core electrical and mechanical requirements for 180 Ohm, 5W axial wirewound resistor applications. Selection between the primary part and substitutes should be based on:

Packaging Requirements: The UB5C-180RF8 is supplied in Tape & Reel format suitable for automated assembly. The 45F180E is available in Bulk packaging, while the RS005180R0FE73 is supplied in Cut Tape format. Choose based on assembly process requirements and quantity needs.

Temperature Range Considerations: The RS005180R0FE73 extends the lower operating temperature limit to -65°C compared to -55°C for the UB5C-180RF8, providing broader environmental coverage. The 45F180E does not specify an operating temperature range.

Regulatory Compliance: All parts maintain identical ROHS3 and REACH compliance status, ensuring equivalent regulatory standing across all three options.

Feature Set: The UB5C-180RF8 includes specified current sense, flame proof, moisture resistant, and pulse withstanding features. The 45F180E does not specify additional features. The RS005180R0FE73 specifies moisture resistant characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 45F180E directly replace the UB5C-180RF8 in all applications?

A: The 45F180E matches all critical electrical parameters (180 Ohms, ±1%, 5W, ±20ppm/°C) and package type (axial). However, the 45F180E does not specify an operating temperature range, and its bulk packaging differs from the tape & reel format of the UB5C-180RF8. Verify compatibility with your specific assembly process and thermal requirements.

Q: What are the dimensional differences between these parts?

A: The UB5C-180RF8 measures 0.250" Dia x 0.500" L (6.40mm x 12.70mm). The 45F180E measures 0.343" Dia x 0.937" L (8.70mm x 23.80mm). The RS005180R0FE73 measures 0.312" Dia x 0.875" L (7.92mm x 22.23mm). Physical size differences may impact PCB layout and mechanical clearance considerations.

Q: Are all three parts suitable for current sensing applications?

A: The UB5C-180RF8 explicitly includes current sense as a specified feature. The 45F180E and RS005180R0FE73 do not specify current sense features in their provided data. Confirm feature compatibility with your application requirements.

Q: Do all parts meet the same environmental compliance standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: Which substitute offers the widest operating temperature range?

A: The RS005180R0FE73 specifies an operating range of -65°C ~ 250°C, extending 10°C lower than the UB5C-180RF8 (-55°C ~ 250°C). The 45F180E does not specify an operating temperature range.