CSRF2512JT40L0 Equivalent & Substitute Parts

Part Overview

The CSRF2512JT40L0 is a 40 mOhms ±5% 2W chip resistor manufactured by Stackpole Electronics Inc in the 2512 (6432 Metric) package. This metal foil current sense resistor is designed for automotive applications with AEC-Q200 qualification and moisture resistance. The part is active in production with 801 units currently in stock. Substitute parts may be required due to inventory constraints, design optimization for tighter tolerance requirements, or supply chain considerations.

Substiute Parts

CSRF2512JT40L0

Stackpole Electronics IncIn Stock: 902CSRF2512JT40L0 Datasheet

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PE2512FKE7W0R04L

YAGEOIn Stock: 6529PE2512FKE7W0R04L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The PE2512FKE7W0R04L from YAGEO qualifies as a direct substitute for the CSRF2512JT40L0 based on the following critical parameters:

• Resistance Value: Both parts are 40 mOhms
• Power Rating: Both rated at 2W
• Package: Both use 2512 (6432 Metric) form factor
• Temperature Coefficient: Both specify ±50ppm/°C
• Operating Temperature Range: Both operate from -55°C to 170°C
• Automotive Compliance: Both carry AEC-Q200 qualification
• Moisture Sensitivity: Both rated MSL 1 (Unlimited)
• RoHS Compliance: Both ROHS3 compliant

The primary difference is tolerance specification: the CSRF2512JT40L0 offers ±5% tolerance with metal foil composition, while the PE2512FKE7W0R04L provides tighter ±1% tolerance with metal film composition. Both compositions support current sense applications.

Parameter Comparison

Engineering Selection Recommendations

Both the CSRF2512JT40L0 and PE2512FKE7W0R04L are active production parts with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts should be based on tolerance requirements for the specific application. The CSRF2512JT40L0 with ±5% tolerance is suitable for general current sense applications where standard tolerance is acceptable. The PE2512FKE7W0R04L with ±1% tolerance provides improved accuracy for precision current measurement circuits. Both parts maintain identical thermal performance and operating ranges, ensuring functional equivalence in automotive environments.

Frequently Asked Questions (FAQ)

Q: Can PE2512FKE7W0R04L replace CSRF2512JT40L0 in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package dimensions, temperature coefficient, and operating temperature range. The PE2512FKE7W0R04L offers superior tolerance (±1% vs ±5%), making it a direct functional substitute. Minor dimensional differences (0.004" length and 0.003" width) are within standard PCB layout tolerances for 2512 packages.

Q: What is the difference between metal foil and metal film composition?

A: Both compositions are specified for current sense applications in this product category. Metal foil (CSRF2512JT40L0) and metal film (PE2512FKE7W0R04L) differ in manufacturing process but deliver equivalent electrical performance at the specified tolerance levels and temperature coefficients.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the CSRF2512JT40L0 and PE2512FKE7W0R04L carry AEC-Q200 qualification, confirming suitability for automotive environments across the specified operating temperature range of -55°C to 170°C.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level. Both parts can be stored indefinitely without moisture bake-out requirements prior to soldering, simplifying inventory and assembly processes.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under the same HTSUS code (8533.21.0030), confirming equivalent regulatory status.