ERJ-MP3KF10MU Equivalent & Substitute Parts

Part Overview

The ERJ-MP3KF10MU is a 10 mOhms ±1% 0.5W chip resistor in 2010 (5025 Metric) package manufactured by Panasonic Electronic Components. This metal element current sense resistor is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

ERJ-MP3KF10MU

Panasonic Electronic ComponentsIn Stock: 766ERJ-MP3KF10MU Datasheet

Current PartRFQ

CSNL2010FT10L0

Stackpole Electronics IncIn Stock: 28302CSNL2010FT10L0 Datasheet

DirectRFQ

WSL2010R0100FEA

Vishay DaleIn Stock: 15921WSL2010R0100FEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERJ-MP3KF10MU is determined by strict equivalence in the following parameters:

• Resistance value: 10 mOhms
• Tolerance: ±1%
• Package type: 2010 (5025 Metric)
• Composition: Metal Element
• Termination count: 2
• RoHS compliance: ROHS3
• Moisture Sensitivity Level: 1

Two substitute parts meet these criteria with variations in power rating and additional features. The CSNL2010FT10L0 offers increased power handling at 1.5W, while the WSL2010R0100FEA maintains the original 0.5W rating with enhanced automotive features including anti-sulfur and pulse withstanding capabilities.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the obsolete ERJ-MP3KF10MU, the WSL2010R0100FEA from Vishay Dale is the primary choice. It maintains identical electrical specifications (10 mOhms ±1%, 0.5W, ±75ppm/°C), preserves the full operating temperature range (-65°C to 170°C), and retains AEC-Q200 automotive qualification. The addition of anti-sulfur and pulse withstanding features provides enhanced reliability without compromising compatibility.

The CSNL2010FT10L0 from Stackpole Electronics Inc serves as an alternative for applications where increased power dissipation (1.5W) is beneficial. This part maintains core electrical equivalence but lacks AEC-Q200 certification and operates over a narrower temperature range (-55°C to 170°C). Selection of this substitute requires confirmation that automotive qualification is not a design requirement and that the reduced lower temperature limit is acceptable for the application.

Both substitutes are active products with established supply chains, ensuring long-term availability compared to the obsolete main part.

Frequently Asked Questions (FAQ)

Q: Can the CSNL2010FT10L0 be used in automotive applications requiring AEC-Q200 certification?

A: No. The CSNL2010FT10L0 does not carry AEC-Q200 qualification. If automotive certification is a design requirement, the WSL2010R0100FEA is the appropriate substitute.

Q: What is the difference between the two substitute parts?

A: The CSNL2010FT10L0 provides higher power handling (1.5W versus 0.5W) and a lower temperature coefficient (±50ppm/°C versus ±75ppm/°C), but lacks AEC-Q200 certification and operates at a reduced minimum temperature (-55°C versus -65°C). The WSL2010R0100FEA maintains the original specifications while adding anti-sulfur and pulse withstanding features.

Q: Are all three parts physically compatible in the same PCB footprint?

A: Yes. All three parts use the 2010 (5025 Metric) package with identical termination count (2). Physical dimensions are within acceptable tolerances for standard PCB layouts, though the WSL2010R0100FEA has a slightly lower seated height (0.035" versus 0.045" for the main part).

Q: What does "current sense" mean for these resistors?

A: Current sense resistors are precision low-value resistors used to measure current flow in a circuit by monitoring the voltage drop across them. The ±1% tolerance and metal element construction ensure accurate current measurement.

Q: Are moisture sensitivity considerations important for these parts?

A: All three parts have Moisture Sensitivity Level 1 (Unlimited), meaning they can be stored and handled without special moisture control measures. This simplifies supply chain management and reduces handling costs.

Q: Can the WSL2010R0100FEA be used as a direct drop-in replacement?

A: Yes. The WSL2010R0100FEA is a direct drop-in replacement for the ERJ-MP3KF10MU with identical electrical performance and enhanced features. No circuit modifications are required.