WSR5R0500FTA Equivalent & Substitute Parts

Part Overview

The WSR5R0500FTA is a 50 mOhms ±1% 5W chip resistor manufactured by Vishay Dale, designed for current sensing applications in automotive environments. This metal element resistor features anti-sulfur coating, AEC-Q200 qualification, and moisture resistance, making it suitable for high-reliability automotive circuits. The part is currently active in production. Substitute parts may be required due to inventory availability, packaging preferences, or compliance requirements specific to end-application specifications.

Substiute Parts

WSR5R0500FTA

Vishay DaleIn Stock: 940WSR5R0500FTA Datasheet

Current PartRFQ

WSR5R0500FEA

Vishay DaleIn Stock: 1314WSR5R0500FEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WSR5R0500FTA is determined by strict equivalence across the following critical parameters:

• Resistance value: 50 mOhms
• Tolerance: ±1%
• Power rating: 5W
• Package type: 4527 J-Lead
• Composition: Metal Element
• Temperature coefficient: ±75 ppm/°C
• Operating temperature range: -65°C to 275°C
• Automotive qualification: AEC-Q200
• Core features: Anti-sulfur, current sense capability, moisture resistance, pulse withstanding

The WSR5R0500FEA meets all these criteria and is classified as a direct manufacturer equivalent. Both parts are produced by Vishay Dale within the WSR series and maintain identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The WSR5R0500FEA is a direct functional equivalent to the WSR5R0500FTA. Both parts maintain identical electrical performance, mechanical compatibility, and automotive qualification status. The primary distinction is RoHS compliance: the WSR5R0500FEA is ROHS3 compliant, while the WSR5R0500FTA is RoHS non-compliant. Selection between these parts should be based on end-application regulatory requirements. If RoHS3 compliance is mandated by design specifications or regional regulations, the WSR5R0500FEA is the appropriate choice. If RoHS compliance is not a requirement, either part is suitable. Both parts are active in production and available in standard Tape & Reel packaging.

Frequently Asked Questions (FAQ)

Q: Can WSR5R0500FEA be used as a direct replacement for WSR5R0500FTA in automotive circuits?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance, tolerance, power rating, temperature coefficient, and operating temperature range. Both carry AEC-Q200 automotive qualification. The only difference is RoHS compliance status.

Q: What is the significance of the RoHS compliance difference?

A: RoHS3 compliance indicates the WSR5R0500FEA meets current European Union Restriction of Hazardous Substances regulations. If your application or supply chain requires RoHS3 certification, the WSR5R0500FEA must be used. If RoHS compliance is not specified, both parts are functionally equivalent.

Q: Are the 4527 J-Lead packages identical between both parts?

A: Yes. Both parts use the 4527 J-Lead package with identical dimensions (0.455" L x 0.275" W / 11.56mm x 6.98mm) and maximum seated height (0.100" / 2.54mm). PCB layout and assembly processes are interchangeable.

Q: Do both parts support current sensing applications?

A: Yes. Both the WSR5R0500FTA and WSR5R0500FEA are specified for current sensing applications with anti-sulfur coating, moisture resistance, and pulse withstanding capability.

Q: What is Moisture Sensitivity Level 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. Both parts can be stored and handled without special moisture control procedures.