WSL2010R0100FEK Equivalent & Substitute Parts

Part Overview

The WSL2010R0100FEK is a 10 mOhms ±1% metal element chip resistor manufactured by Vishay Dale in the 2010 (5025 Metric) package format. Designed for current sensing applications, this component meets AEC-Q200 automotive qualification standards and operates across -65°C to 170°C. The part is actively produced and widely stocked, with 1055 units available in bulk packaging. Substitute parts may be required due to packaging availability, lead time optimization, or specific application requirements such as anti-sulfur protection.

Substiute Parts

WSL2010R0100FEK

Vishay DaleIn Stock: 1107WSL2010R0100FEK Datasheet

Current PartRFQ

WSL2010R0100FEA

Vishay DaleIn Stock: 15921WSL2010R0100FEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WSL2010R0100FEK is determined by strict equivalence across the following critical parameters:

• Resistance value: 10 mOhms
• Tolerance: ±1%
• Power rating: 0.5W / 1/2W
• Package format: 2010 (5025 Metric)
• Composition: Metal Element
• Temperature coefficient: ±75 ppm/°C
• Operating temperature range: -65°C to 170°C
• AEC-Q200 automotive qualification
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

The WSL2010R0100FEA qualifies as a direct substitute based on identical electrical specifications and package dimensions. The primary distinction is packaging format (Cut Tape & Digi-Reel versus Bulk) and the addition of anti-sulfur protection in the substitute part.

Parameter Comparison

Engineering Selection Recommendations

Both WSL2010R0100FEK and WSL2010R0100FEA are active production parts from Vishay Dale with identical electrical and thermal specifications. Selection between these parts should be based on:

• Packaging requirements: Bulk format for WSL2010R0100FEK; Cut Tape & Digi-Reel for WSL2010R0100FEA
• Environmental exposure: WSL2010R0100FEA includes anti-sulfur protection for applications in corrosive atmospheres
• Supply chain availability: WSL2010R0100FEA maintains higher inventory levels (15,852 units versus 1,055 units)

Both parts satisfy AEC-Q200 automotive qualification, ROHS3 compliance, and unlimited moisture sensitivity rating. Electrical performance, thermal characteristics, and mechanical dimensions are identical.

Frequently Asked Questions (FAQ)

Q: Can WSL2010R0100FEA be used as a direct replacement for WSL2010R0100FEK?

A: Yes. Both parts share identical resistance (10 mOhms), tolerance (±1%), power rating (0.5W), package format (2010), temperature coefficient (±75 ppm/°C), and operating range (-65°C to 170°C). The primary difference is packaging format and anti-sulfur protection in the substitute part.

Q: What is the significance of the anti-sulfur feature in WSL2010R0100FEA?

A: Anti-sulfur protection extends component reliability in environments with hydrogen sulfide or sulfur dioxide exposure. This feature does not affect electrical performance but enhances long-term stability in corrosive industrial or marine applications.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts maintain identical temperature coefficient (±75 ppm/°C), operating temperature range (-65°C to 170°C), and power dissipation characteristics (0.5W).

Q: Which packaging format should I select?

A: WSL2010R0100FEK (Bulk) is suitable for high-volume manufacturing or inventory consolidation. WSL2010R0100FEA (Cut Tape & Digi-Reel) is optimized for automated assembly lines and component-level traceability.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both WSL2010R0100FEK and WSL2010R0100FEA carry AEC-Q200 automotive qualification and ROHS3 compliance.