CSR2512C0R04F Equivalent & Substitute Parts

Part Overview

The CSR2512C0R04F is a 40 mOhms ±1% 3W chip resistor in 2512 (6432 Metric) package manufactured by Riedon. This metal element current sense resistor features non-inductive construction and operates across -55°C to 170°C. The part is currently obsolete, making identification of active equivalent models essential for ongoing production and maintenance applications requiring precision current sensing in compact form factors.

Substiute Parts

CSR2512C0R04F

RiedonIn Stock: 908CSR2512C0R04F Datasheet

Current PartRFQ

CSRL3-0R04F1

RiedonIn Stock: 1044CSRL3-0R04F1 Datasheet

DirectRFQ

CSRL3-0R04F8

RiedonIn Stock: 7720CSRL3-0R04F8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the obsolete CSR2512C0R04F is determined by strict equivalence across the following critical parameters:

• Resistance value: 40 mOhms
• Tolerance: ±1%
• Power rating: 3W
• Package: 2512 (6432 Metric)
• Composition: Metal Element
• Features: Current Sense, Non-Inductive
• Operating temperature range: -55°C ~ 170°C
• RoHS3 compliance

The substitute parts CSRL3-0R04F1 and CSRL3-0R04F8 meet all these criteria. Both are active Riedon products from the CSRL series with identical electrical specifications and mechanical compatibility. The primary distinction between substitutes is packaging format: CSRL3-0R04F1 is supplied in Cut Tape (CT) format, while CSRL3-0R04F8 is supplied in Tape & Reel (TR) format.

Parameter Comparison

Engineering Selection Recommendations

Both CSRL3-0R04F1 and CSRL3-0R04F8 are direct functional equivalents to the obsolete CSR2512C0R04F. Selection between the two active substitutes depends on procurement and assembly requirements:

CSRL3-0R04F1 is suitable for applications requiring cut tape packaging, typically for lower-volume production runs or manual assembly processes. CSRL3-0R04F8 is appropriate for high-volume automated assembly operations utilizing tape and reel format. Both parts maintain full electrical and mechanical compatibility with the original design, including identical operating temperature range, RoHS3 compliance, and REACH status. The minor dimensional variations (0.002" length and 0.008" width differences) fall within standard PCB layout tolerances for 2512 package footprints.

Frequently Asked Questions (FAQ)

Q: Can CSRL3-0R04F1 and CSRL3-0R04F8 be used interchangeably with CSR2512C0R04F?

A: Yes. Both substitute parts meet all electrical and mechanical specifications of the obsolete CSR2512C0R04F, including resistance, tolerance, power rating, package dimensions, and operating temperature range. The only difference is packaging format (cut tape versus tape and reel).

Q: What is the difference between CSRL3-0R04F1 and CSRL3-0R04F8?

A: The primary difference is packaging. CSRL3-0R04F1 is supplied in cut tape format, while CSRL3-0R04F8 is supplied in tape and reel format. Electrical specifications and mechanical dimensions are identical.

Q: Are there dimensional compatibility concerns with the substitute parts?

A: The substitute parts have slightly larger dimensions (0.252" L x 0.126" W versus 0.250" L x 0.118" W for the original). These differences are within standard PCB layout tolerances for 2512 package footprints and do not affect functional compatibility.

Q: Do the substitute parts maintain the same compliance certifications?

A: Yes. Both CSRL3-0R04F1 and CSRL3-0R04F8 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings, matching the original part.

Q: Which substitute should be selected for new designs?

A: For new designs, either substitute is acceptable based on assembly process requirements. CSRL3-0R04F8 (tape and reel) is recommended for automated high-volume production. CSRL3-0R04F1 (cut tape) is suitable for lower-volume or manual assembly scenarios.