CSR2512B0R005F Equivalent & Substitute Parts

Part Overview

The CSR2512B0R005F is a 5 mOhms ±1% 2.5W chip resistor in 2512 (6432 Metric) package manufactured by Riedon. This current sense, non-inductive metal element resistor is designed for precision low-resistance applications requiring stable performance across extended temperature ranges. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

CSR2512B0R005F

RiedonIn Stock: 1079CSR2512B0R005F Datasheet

Current PartRFQ

CSRL3-0R005F2

RiedonIn Stock: 8942CSRL3-0R005F2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSR2512B0R005F is determined by the following critical parameters:

• Resistance value: 5 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 2512 (6432 Metric) (exact match required)
• Composition: Metal Element (exact match required)
• Features: Current Sense, Non-Inductive (exact match required)
• Operating Temperature Range: -55°C ~ 170°C (minimum requirement)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

The CSRL3-0R005F2 meets all critical substitution criteria. While the power rating differs (3W versus 2.5W), the higher power rating of the substitute part provides enhanced thermal capability and is electrically compatible for applications designed around the original 2.5W specification.

Parameter Comparison

Engineering Selection Recommendations

The CSRL3-0R005F2 is the direct substitute for the obsolete CSR2512B0R005F. Both parts are manufactured by Riedon and maintain identical electrical specifications for resistance, tolerance, and temperature performance. The substitute part carries Active product status, ensuring long-term availability and supply chain continuity.

The increased power rating (3W versus 2.5W) of the substitute part does not introduce compatibility issues for applications designed around the original 2.5W specification. The physical package dimensions remain within the 2512 (6432 Metric) standard, supporting direct board-level substitution.

Both parts maintain ROHS3 compliance and MSL 1 rating, satisfying regulatory and environmental requirements. The substitute part is currently in stock with substantial inventory availability.

Frequently Asked Questions (FAQ)

Q: Can CSRL3-0R005F2 be used as a direct replacement for CSR2512B0R005F?

A: Yes. Both parts share identical resistance (5 mOhms), tolerance (±1%), package (2512), composition (Metal Element), and operating temperature range (-55°C ~ 170°C). The higher power rating of the substitute part is compatible with applications designed for the original 2.5W specification.

Q: What is the significance of the power rating difference?

A: The CSRL3-0R005F2 provides 3W power handling versus 2.5W for the original part. This represents enhanced thermal capability and does not restrict application compatibility. Applications operating within the original 2.5W design envelope will function identically with the substitute part.

Q: Are there physical dimension differences between these parts?

A: Both parts conform to the 2512 (6432 Metric) package standard. Minor dimensional variations exist within standard tolerances (CSR2512B0R005F: 0.250" L x 0.118" W; CSRL3-0R005F2: 0.252" L x 0.126" W). These differences do not affect PCB footprint compatibility or assembly processes.

Q: What is the product status significance?

A: The CSR2512B0R005F is classified as Obsolete, indicating discontinued manufacturing. The CSRL3-0R005F2 maintains Active status with current production and established supply chain availability, supporting long-term design continuity.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental requirements are identical.