UB3C-10RF8 Equivalent & Substitute Parts

Part Overview

The UB3C-10RF8 is a 10 Ohm ±1% 3W axial wirewound resistor manufactured by Riedon. This component is designed for through-hole applications requiring current sensing with enhanced reliability features including flame proof, moisture resistant, pulse withstanding, and safety certifications. The part is currently in active production status with 644 units available in inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range.

Substiute Parts

UB3C-10RF8

RiedonIn Stock: 708UB3C-10RF8 Datasheet

Current PartRFQ

WW3FT10R0

Stackpole Electronics IncIn Stock: 3126WW3FT10R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UB3C-10RF8 is determined by strict equivalence in the following parameters:

• Resistance value: 10 Ohms
• Tolerance: ±1%
• Power rating: 3W
• Composition: Wirewound
• Package: Axial through-hole configuration
• Temperature coefficient: ±50ppm/°C
• RoHS compliance: ROHS3 Compliant

The WW3FT10R0 manufactured by Stackpole Electronics Inc meets all substitution criteria. Both parts share identical electrical specifications and axial package geometry, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the UB3C-10RF8 and WW3FT10R0 are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on application-specific constraints:

The UB3C-10RF8 features a compact axial form factor (4.00mm diameter × 8.90mm length) with current sense, flame proof, moisture resistant, pulse withstanding, and safety certifications. This configuration is suitable for space-constrained applications requiring enhanced reliability features.

The WW3FT10R0 provides an extended operating temperature range to 350°C and moisture resistant properties. The larger physical dimensions (4.75mm diameter × 14.22mm length) may be relevant for thermal management or mechanical clearance considerations in specific circuit layouts.

Both parts maintain identical electrical performance across the specified operating range and are suitable for direct substitution where mechanical envelope constraints permit.

Frequently Asked Questions (FAQ)

Q: Can WW3FT10R0 directly replace UB3C-10RF8 in existing designs?

A: Yes, electrical substitution is valid. Both parts share identical resistance (10 Ohms), tolerance (±1%), power rating (3W), temperature coefficient (±50ppm/°C), and composition (wirewound). Physical dimensions differ; verify that the larger WW3FT10R0 form factor (4.75mm × 14.22mm) accommodates available board space compared to the UB3C-10RF8 (4.00mm × 8.90mm).

Q: What is the difference in operating temperature range?

A: The UB3C-10RF8 operates from -55°C to 250°C, while the WW3FT10R0 extends to 350°C. For applications within the -55°C to 250°C window, both parts perform identically. The WW3FT10R0 provides additional thermal margin for high-temperature environments.

Q: Are there packaging differences between these parts?

A: Yes. The UB3C-10RF8 is supplied in Tape & Reel (TR) format, while the WW3FT10R0 is supplied in Cut Tape (CT) format. Both are axial through-hole components suitable for automated or manual assembly.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the UB3C-10RF8 and WW3FT10R0 are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0080.

Q: What features distinguish the UB3C-10RF8?

A: The UB3C-10RF8 includes current sense, flame proof, moisture resistant, pulse withstanding, and safety certifications. The WW3FT10R0 specifies moisture resistant properties. Application requirements for flame proof, pulse withstanding, or safety certifications should be evaluated against design specifications.