WSR34L000FEB Equivalent & Substitute Parts

Part Overview

The WSR34L000FEB is a 4 milliohm, ±1% tolerance, 3-watt chip resistor manufactured by Vishay Dale in the 4527 J-Lead package. This metal element current sense resistor is designed for automotive applications with AEC-Q200 qualification, anti-sulfur coating, moisture resistance, and pulse withstanding capability. The part is actively produced and stocked, with 959 units available in inventory. Substitute parts are identified when equivalent electrical and mechanical specifications are required for procurement flexibility, inventory management, or supply chain continuity.

Substiute Parts

WSR34L000FEB

Vishay DaleIn Stock: 1032WSR34L000FEB Datasheet

Current PartRFQ

WSR34L000FEA

Vishay DaleIn Stock: 2968WSR34L000FEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WSR34L000FEB is determined by strict equivalence across the following critical parameters:

• Resistance value: 4 mOhms
• Tolerance: ±1%
• Power rating: 3W
• Package type: 4527 J-Lead
• Composition: Metal Element
• Temperature coefficient: ±300ppm/°C
• Operating temperature range: -65°C ~ 275°C
• Automotive qualification: AEC-Q200
• Feature set: Anti-Sulfur, Current Sense, Moisture Resistant, Pulse Withstanding
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

The WSR34L000FEA meets all substitution criteria as a direct equivalent from the same manufacturer and series.

Parameter Comparison

Engineering Selection Recommendations

Both the WSR34L000FEB and WSR34L000FEA are active production parts from Vishay Dale with identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and supply chain requirements. The WSR34L000FEA currently has higher inventory (2941 units) compared to the WSR34L000FEB (959 units). Both parts carry ROHS3 compliance, AEC-Q200 automotive qualification, and MSL 1 moisture sensitivity rating, making them suitable for equivalent circuit applications without design modification.

Frequently Asked Questions (FAQ)

Q: Can WSR34L000FEA be used as a direct replacement for WSR34L000FEB?

A: Yes. Both parts are identical in electrical performance, mechanical dimensions, package type, and automotive qualification. No circuit redesign or board layout modification is required.

Q: Are there any differences in the 4527 J-Lead package between these parts?

A: No. Both parts use the identical 4527 J-Lead package with matching dimensions (0.455" L x 0.275" W, 11.56mm x 6.98mm) and seated height (0.100" / 2.54mm maximum).

Q: Do both parts meet automotive standards?

A: Yes. Both WSR34L000FEB and WSR34L000FEA carry AEC-Q200 qualification and are suitable for automotive current sense applications.

Q: What is the moisture sensitivity rating for these parts?

A: Both parts have MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture sensitivity restrictions for storage or handling.

Q: Are these parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant.