UB3C-82RF1 Equivalent & Substitute Parts

Part Overview

The UB3C-82RF1 is an 82 Ohms ±1% 3W axial wirewound resistor manufactured by Riedon. This through-hole component is designed for current sense applications and features flame proof, moisture resistant, pulse withstanding, and safety certifications. The part is currently active in production with 1097 pieces in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance are maintained across alternative manufacturers.

Substiute Parts

UB3C-82RF1

RiedonIn Stock: 1122UB3C-82RF1 Datasheet

Current PartRFQ

RS02B82R00FE70

Vishay DaleIn Stock: 2777RS02B82R00FE70 Datasheet

MFR RecommendedRFQ

WW3FT82R0

Stackpole Electronics IncIn Stock: 5432WW3FT82R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UB3C-82RF1 is determined by strict equivalence across the following parameters:

• Resistance value: 82 Ohms
• Tolerance: ±1%
• Power rating: 3W
• Composition: Wirewound
• Package: Axial through-hole
• Temperature coefficient: ±20ppm/°C
• RoHS3 compliance
• Operating temperature range compatibility (minimum -55°C, maximum 250°C or higher)

The identified substitute parts RS02B82R00FE70 (Vishay Dale) and WW3FT82R0 (Stackpole Electronics Inc) meet all core electrical and mechanical requirements. Both parts maintain the same resistance, tolerance, power rating, wirewound composition, and axial package configuration. Both are ROHS3 compliant and feature moisture resistant properties. Operating temperature ranges exceed or match the minimum requirement of -55°C to 250°C.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are suitable for direct replacement of the UB3C-82RF1 based on electrical and regulatory equivalence. All three parts maintain identical resistance, tolerance, power rating, and temperature coefficient specifications. All parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The RS02B82R00FE70 (Vishay Dale) extends the lower operating temperature limit to -65°C while maintaining the 250°C upper limit. The WW3FT82R0 (Stackpole Electronics Inc) extends the upper operating temperature limit to 350°C while maintaining the -55°C lower limit. Selection between these substitutes depends on the specific operating temperature requirements of the application.

Physical dimensions differ slightly between parts. The UB3C-82RF1 measures 0.157" diameter by 0.350" length. Both substitute parts measure 0.187" diameter by 0.560" length. PCB layout and mechanical clearance must be verified before substitution.

Frequently Asked Questions (FAQ)

Q: Can RS02B82R00FE70 or WW3FT82R0 be used as direct replacements for UB3C-82RF1?

A: Yes, both parts are electrically equivalent. All three parts share identical resistance (82 Ohms), tolerance (±1%), power rating (3W), temperature coefficient (±20ppm/°C), and wirewound axial package configuration. All are ROHS3 compliant and REACH unaffected.

Q: What are the physical dimension differences?

A: The UB3C-82RF1 measures 0.157" diameter by 0.350" length (4.00mm x 8.90mm). Both RS02B82R00FE70 and WW3FT82R0 measure 0.187" diameter by 0.560" length (4.75mm x 14.22mm). Verify PCB layout and mechanical clearance before substitution.

Q: Which substitute part should I select based on operating temperature?

A: The RS02B82R00FE70 operates from -65°C to 250°C, extending the lower temperature range. The WW3FT82R0 operates from -55°C to 350°C, extending the upper temperature range. Select based on your application's specific temperature requirements.

Q: Are all parts moisture resistant?

A: The UB3C-82RF1 features moisture resistant properties. Both RS02B82R00FE70 and WW3FT82R0 are also moisture resistant. The UB3C-82RF1 carries MSL rating 1 (Unlimited), while the substitute parts are not applicable for MSL rating.

Q: What is the packaging difference?

A: The UB3C-82RF1 is supplied in Bulk packaging. RS02B82R00FE70 is supplied in Cut Tape (CT) packaging. WW3FT82R0 is supplied in Cut Tape (CT) packaging. Packaging format does not affect electrical or mechanical compatibility.