UB3C-15RF8 Equivalent & Substitute Parts

Part Overview

The Riedon UB3C-15RF8 is a 15 Ohm ±1% 3W axial wirewound resistor designed for current sense applications. The component features flame proof, moisture resistant, and pulse withstanding characteristics, with a temperature coefficient of ±20ppm/°C and operating range of -55°C to 250°C. This part is active and in stock with 1137 units available. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the axial through-hole resistor category.

Substiute Parts

UB3C-15RF8

RiedonIn Stock: 1194UB3C-15RF8 Datasheet

Current PartRFQ

43F15RE

OhmiteIn Stock: 96043F15RE Datasheet

MFR RecommendedRFQ

RS02B15R00FE70

Vishay DaleIn Stock: 3866RS02B15R00FE70 Datasheet

MFR RecommendedRFQ

WW3FT15R0

Stackpole Electronics IncIn Stock: 4428WW3FT15R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UB3C-15RF8 are qualified based on the following criteria:

• Resistance value: 15 Ohms
• Tolerance: ±1%
• Power rating: 3W
• Composition: Wirewound
• Package: Axial through-hole
• Temperature coefficient: ±20ppm/°C
• RoHS3 compliance
• Number of terminations: 2

All identified substitutes meet these core electrical and mechanical parameters. Physical dimensions vary within acceptable ranges for axial resistor form factors. Operating temperature ranges differ among substitutes but all support the minimum requirement of -55°C operation.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts are active products with ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the primary part. Selection among substitutes should account for physical dimensions, as the UB3C-15RF8 features a compact 4.00mm diameter compared to larger form factors in the substitute group. The Vishay Dale RS02B15R00FE70 and Stackpole Electronics WW3FT15R0 share identical physical dimensions (4.75mm x 14.22mm) and both include moisture resistant features. The Ohmite 43F15RE offers the largest form factor at 5.60mm x 15.10mm. Operating temperature ranges extend beyond the primary part specification in the Stackpole and Vishay Dale options, providing additional thermal margin in applications requiring extended temperature performance.

Frequently Asked Questions (FAQ)

Q: Can the Ohmite 43F15RE substitute for the Riedon UB3C-15RF8 in space-constrained applications?

A: The Ohmite 43F15RE has larger physical dimensions (5.60mm x 15.10mm versus 4.00mm x 8.90mm). Substitution is electrically valid but requires verification of available board space and mechanical clearance.

Q: What is the difference between the Vishay Dale and Stackpole substitute options?

A: Both the RS02B15R00FE70 and WW3FT15R0 share identical dimensions and temperature coefficients. The Stackpole part supports a higher maximum operating temperature (350°C versus 250°C). Both include moisture resistant features.

Q: Are all substitute parts suitable for current sense applications?

A: All substitute parts meet the electrical specifications for current sense applications. The primary part explicitly lists current sense as a feature. Substitute parts do not specify this application but meet all electrical and mechanical requirements.

Q: What packaging formats are available for these substitutes?

A: The Riedon UB3C-15RF8 is supplied in Tape & Reel format. Substitutes are available in Bulk (Ohmite 43F15RE) and Cut Tape formats (Vishay Dale RS02B15R00FE70 and Stackpole WW3FT15R0).

Q: Do all parts meet the same compliance standards?

A: All parts are ROHS3 compliant and REACH unaffected. ECCN and HTSUS classifications are identical across all options.