WLBR030FE Equivalent & Substitute Parts

Part Overview

The WLBR030FE is a 30 mOhms ±1% 1W through-hole resistor manufactured by Ohmite in the WL series. This wirewound axial resistor is designed for current sense applications with moisture-resistant construction. The part is active in production with 1061 units currently in stock. Substitute parts are identified when packaging or inventory requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

WLBR030FE

OhmiteIn Stock: 1158WLBR030FE Datasheet

Current PartRFQ

WLBR030FET

OhmiteIn Stock: 3768WLBR030FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WLBR030FE is determined by the following criteria:

• Identical resistance value: 30 mOhms
• Identical tolerance: ±1%
• Identical power rating: 1W
• Identical composition: Wirewound
• Identical package type: Axial
• Identical physical dimensions: 0.130" Dia x 0.276" L (3.30mm x 7.00mm)
• Identical temperature coefficient: ±300ppm/°C
• Identical features: Current Sense, Moisture Resistant
• Identical number of terminations: 2

The WLBR030FET qualifies as a direct substitute because it maintains all electrical and mechanical parameters. The only difference is packaging format (Tape & Reel versus bulk), which does not affect component performance or board-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both WLBR030FE and WLBR030FET are active production parts from Ohmite with full RoHS compliance. Selection between these parts is based on procurement and assembly requirements rather than electrical performance:

• WLBR030FE is suitable for manual assembly, prototyping, or applications requiring bulk packaging
• WLBR030FET is suitable for automated pick-and-place assembly processes requiring tape and reel packaging

Both parts meet identical electrical specifications and are interchangeable at the circuit level. The choice depends on manufacturing process requirements and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can WLBR030FET be used as a direct replacement for WLBR030FE?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. WLBR030FET uses Tape & Reel packaging while WLBR030FE uses bulk packaging. This does not affect component performance or board-level compatibility.

Q: What is the difference between RoHS3 Compliant and RoHS Compliant?

A: Both designations indicate RoHS compliance. The specific RoHS version designation does not affect component substitutability for applications requiring RoHS-compliant components.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both WLBR030FE and WLBR030FET have identical dimensions of 0.130" Dia x 0.276" L (3.30mm x 7.00mm). They are mechanically interchangeable in all board layouts and mechanical assemblies.

Q: Which part should be selected for high-volume production?

A: WLBR030FET with Tape & Reel packaging is optimized for automated assembly processes typical in high-volume manufacturing. WLBR030FE bulk packaging is suitable for lower-volume or manual assembly operations.

Q: Do both parts have the same temperature coefficient?

A: Yes. Both parts have a temperature coefficient of ±300ppm/°C, ensuring identical thermal performance across the operating range.