CSR2512A0R05F Equivalent & Substitute Parts

Part Overview

The CSR2512A0R05F is a 50 mOhms ±1% 2W 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 wide temperature ranges. The part is classified as Obsolete, necessitating identification of suitable alternatives for ongoing production and maintenance requirements.

Substiute Parts

CSR2512A0R05F

RiedonIn Stock: 800CSR2512A0R05F Datasheet

Current PartRFQ

CSRL3-0R05F2

RiedonIn Stock: 12147CSRL3-0R05F2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR2512A0R05F is determined by the following critical parameters:

• Resistance value: 50 mOhms
• Tolerance: ±1%
• Package / Case: 2512 (6432 Metric)
• Composition: Metal Element
• Features: Current Sense, Non-Inductive
• Operating Temperature Range: -55°C ~ 170°C
• RoHS Status: ROHS3 Compliant

The CSRL3-0R05F2 qualifies as a direct substitute based on matching all core electrical and mechanical specifications. The primary distinction is an increased power rating (3W versus 2W), which represents an enhancement rather than a limitation for applications originally designed for the 2W variant.

Parameter Comparison

Engineering Selection Recommendations

The CSRL3-0R05F2 is the qualified substitute for the obsolete CSR2512A0R05F. Both parts maintain identical electrical specifications (50 mOhms ±1%), mechanical form factor (2512 package), and environmental compliance (ROHS3 Compliant, MSL 1). The CSRL3-0R05F2 offers increased power dissipation capability (3W versus 2W) while maintaining the same physical footprint and thermal operating range (-55°C ~ 170°C).

The CSRL3-0R05F2 carries Active product status with significantly higher inventory availability (12084 Pcs), ensuring supply chain continuity for new designs and production support.

Frequently Asked Questions (FAQ)

Q: Can the CSRL3-0R05F2 be used as a direct replacement for the CSR2512A0R05F?

A: Yes. Both parts share identical resistance (50 mOhms), tolerance (±1%), package (2512), composition (Metal Element), and operating temperature range (-55°C ~ 170°C). The CSRL3-0R05F2 provides equivalent or superior performance in all specified parameters.

Q: What is the significance of the increased power rating in the CSRL3-0R05F2?

A: The CSRL3-0R05F2 is rated for 3W dissipation compared to the original 2W rating. This enhancement provides additional thermal margin and does not create compatibility issues in applications designed for the 2W variant.

Q: Are there packaging differences between these parts?

A: No. Both parts use identical 2512 (6432 Metric) packaging with matching physical dimensions (0.252" L x 0.126" W, 6.40mm x 3.20mm) and height (0.035" maximum seated height). PCB footprints are interchangeable.

Q: What is the product status difference, and why does it matter?

A: The CSR2512A0R05F is classified as Obsolete, indicating discontinued manufacturing. The CSRL3-0R05F2 is Active with full production support and substantially higher inventory levels, ensuring long-term availability for design implementation and production orders.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 Compliant, REACH Unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Compliance certifications are equivalent.