CSRF2512JT33L0 Equivalent & Substitute Parts

Part Overview

The CSRF2512JT33L0 is a 33 milliohm, 2-watt chip resistor manufactured by Stackpole Electronics Inc in the 2512 (6432 Metric) package. This metal foil current sense resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is actively produced and maintained in inventory, serving applications requiring precision current measurement and sensing in automotive environments.

Substitute parts are identified to provide design flexibility when the primary part becomes unavailable or when alternative electrical characteristics better suit specific application requirements.

Substiute Parts

CSRF2512JT33L0

Stackpole Electronics IncIn Stock: 723CSRF2512JT33L0 Datasheet

Current PartRFQ

PE2512FKE7W0R033L

YAGEOIn Stock: 18772PE2512FKE7W0R033L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The PE2512FKE7W0R033L from YAGEO qualifies as a direct substitute based on the following critical parameters:

Resistance value matches exactly at 33 mOhms. Power rating is identical at 2W. Package designation is the same: 2512 (6432 Metric). Both parts maintain the same operating temperature range of -55°C to 170°C and identical temperature coefficient of ±50ppm/°C. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance. Moisture sensitivity level is MSL 1 for both parts.

The primary difference is tolerance specification: the CSRF2512JT33L0 offers ±5% tolerance with metal foil composition, while the PE2512FKE7W0R033L provides tighter ±1% tolerance with metal film composition. This represents an upgrade path for applications requiring improved tolerance performance.

Parameter Comparison

Engineering Selection Recommendations

Both the CSRF2512JT33L0 and PE2512FKE7W0R033L are active production parts with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts depends on tolerance requirements for the specific application.

The CSRF2512JT33L0 with ±5% tolerance is suitable for general current sensing applications where standard tolerance performance is acceptable. The PE2512FKE7W0R033L with ±1% tolerance provides enhanced accuracy for applications requiring tighter resistance value control and improved measurement precision.

Both parts share identical thermal characteristics, operating temperature ranges, and moisture sensitivity ratings, ensuring equivalent performance in environmental conditions. Physical dimensions are comparable with minimal variation, supporting direct board-level substitution in most layouts.

Frequently Asked Questions (FAQ)

Q: Can PE2512FKE7W0R033L replace CSRF2512JT33L0 in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package designation, operating temperature range, and automotive qualification. The PE2512FKE7W0R033L provides superior tolerance performance at ±1% versus ±5%, making it suitable for direct substitution with improved accuracy characteristics.

Q: What is the significance of the tolerance difference between these parts?

A: The CSRF2512JT33L0 specifies ±5% tolerance, while the PE2512FKE7W0R033L specifies ±1% tolerance. For current sensing applications, tighter tolerance reduces measurement error and improves circuit accuracy. Applications with strict current measurement requirements benefit from the PE2512FKE7W0R033L upgrade.

Q: Are there physical compatibility concerns when substituting these parts?

A: Physical dimensions differ slightly. The CSRF2512JT33L0 measures 0.254" L x 0.128" W with 0.037" maximum seated height. The PE2512FKE7W0R033L measures 0.250" L x 0.125" W with 0.035" maximum seated height. These minor variations are within typical PCB layout tolerances and do not prevent direct substitution.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the CSRF2512JT33L0 and PE2512FKE7W0R033L carry AEC-Q200 qualification, confirming suitability for automotive applications. Both maintain ROHS3 compliance and MSL 1 moisture sensitivity rating.

Q: What composition difference exists between metal foil and metal film construction?

A: The CSRF2512JT33L0 uses metal foil composition while the PE2512FKE7W0R033L uses metal film composition. Both achieve identical temperature coefficient performance at ±50ppm/°C and support the same operating temperature range. Metal film construction in the PE2512FKE7W0R033L enables the tighter ±1% tolerance specification.