CRL2512-FW-R062ELF Equivalent & Substitute Parts

Part Overview

The CRL2512-FW-R062ELF is a 62 milliohm, ±1% tolerance, 1W thick film chip resistor manufactured by Bourns Inc. in the 2512 (6432 Metric) package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement needs. The part is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1) and operates across the temperature range of -55°C to 125°C.

Substiute Parts

CRL2512-FW-R062ELF

Bourns Inc.In Stock: 1173CRL2512-FW-R062ELF Datasheet

Current PartRFQ

CRM2512-FX-R062ELF

Bourns Inc.In Stock: 893CRM2512-FX-R062ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CRL2512-FW-R062ELF is based on the following critical parameters that must remain constant or improve:

Mandatory Matching Parameters:

• Resistance value: 62 mOhms
• Tolerance: ±1%
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Termination count: 2
• Physical dimensions: 0.248" L x 0.122" W (6.30mm x 3.10mm)
• Compliance: RoHS3, REACH Unaffected

Allowable Variations:

• Power rating may increase (1W to 2W)
• Temperature coefficient may improve (±200ppm/°C to ±100ppm/°C)
• Operating temperature range may expand
• Product status may transition from obsolete to active
• Height may increase within package constraints

The CRM2512-FX-R062ELF meets all mandatory parameters while providing enhanced specifications in power rating, temperature coefficient, and product status.

Parameter Comparison

Engineering Selection Recommendations

The CRM2512-FX-R062ELF is a direct substitute for the obsolete CRL2512-FW-R062ELF. Both parts are manufactured by Bourns Inc. and maintain identical electrical specifications for resistance, tolerance, and package configuration. The substitute part offers the following advantages:

Product Status: The CRM2512-FX-R062ELF holds active product status, ensuring continued availability and manufacturing support, whereas the main part is obsolete.

Power Capability: The substitute provides 2W power rating compared to the 1W rating of the main part, offering increased thermal headroom in applications.

Temperature Performance: The substitute exhibits a superior temperature coefficient of ±100ppm/°C versus ±200ppm/°C, resulting in improved stability across temperature variations. The extended operating range to 155°C provides additional thermal margin.

Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements.

Physical Compatibility: Identical footprint dimensions (0.248" L x 0.122" W) ensure direct PCB layout compatibility. The marginal height increase (0.031" versus 0.024") remains within standard 2512 package tolerances and does not impact assembly or clearance considerations.

Frequently Asked Questions (FAQ)

Q: Can the CRM2512-FX-R062ELF directly replace the CRL2512-FW-R062ELF in existing designs?

A: Yes. Both parts share identical resistance (62 mOhms), tolerance (±1%), package (2512), and physical footprint. The substitute is electrically and mechanically compatible for direct substitution.

Q: What is the significance of the power rating increase from 1W to 2W?

A: The 2W rating of the substitute indicates higher power dissipation capability. In applications operating at or near the 1W limit of the original part, the substitute provides additional thermal margin and reliability. Applications requiring only 1W operation are unaffected by this specification increase.

Q: Does the improved temperature coefficient affect circuit performance?

A: The CRM2512-FX-R062ELF exhibits ±100ppm/°C compared to ±200ppm/°C for the main part. This represents a 50% improvement in temperature stability. In precision current-sensing or measurement applications, this enhanced stability may reduce temperature-induced resistance drift.

Q: Are there any height clearance concerns with the substitute part?

A: The substitute height is 0.031" (0.80mm) compared to 0.024" (0.60mm) for the main part. This 0.007" (0.20mm) increase remains within standard 2512 package specifications and does not create assembly or clearance issues in typical PCB designs.

Q: What is the current sense feature of the CRM2512-FX-R062ELF?

A: The substitute is designated as a current sense resistor, indicating optimization for applications measuring current through voltage drop across the resistor. This feature does not affect basic substitution compatibility but indicates the part's intended application category.

Q: Are both parts RoHS compliant?

A: Yes. Both the CRL2512-FW-R062ELF and CRM2512-FX-R062ELF are ROHS3 compliant and REACH unaffected, satisfying environmental and regulatory requirements.

Q: Why is the main part listed as obsolete?

A: Obsolete status indicates the CRL2512-FW-R062ELF is no longer in active production. The CRM2512-FX-R062ELF, with active status, represents the current manufacturing equivalent and ensures long-term supply chain availability.