CRL2512-FV-R033ELF Equivalent & Substitute Parts

Part Overview

The CRL2512-FV-R033ELF is a 33 milliohm, ±1% tolerance, 1W chip resistor in the 2512 (6432 Metric) package manufactured by Bourns Inc. This thick film current sense resistor operates across a temperature range of -55°C to 125°C with a temperature coefficient of ±400ppm/°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

CRL2512-FV-R033ELF

Bourns Inc.In Stock: 736CRL2512-FV-R033ELF Datasheet

Current PartRFQ

CRF2512-FZ-R033ELF

Bourns Inc.In Stock: 1141CRF2512-FZ-R033ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CRL2512-FV-R033ELF is based on the following critical parameters that must remain constant or improve:

Mandatory Matching Parameters:

• Resistance value: 33 mOhms
• Tolerance: ±1%
• Power rating: 1W
• Package designation: 2512 (6432 Metric)
• Number of terminations: 2
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Allowable Variations:

• Composition type (Thick Film to Metal Element)
• Temperature coefficient (lower values acceptable)
• Maximum operating temperature (higher values acceptable)
• Physical dimensions (within package specification tolerance)
• Product status (Active preferred over Obsolete)

The CRF2512-FZ-R033ELF qualifies as a direct substitute based on identical electrical specifications (33 mOhms, ±1%, 1W) and package compatibility (2512), while offering improved performance characteristics through metal element composition, lower temperature coefficient, and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The CRF2512-FZ-R033ELF is the appropriate substitute for the obsolete CRL2512-FV-R033ELF based on the following factors:

Product Status: The substitute part maintains Active status with Bourns Inc., ensuring continued availability and supply chain reliability compared to the Obsolete main part.

Compliance & Certifications: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements. The substitute additionally carries AEC-Q200 automotive qualification, providing enhanced reliability documentation for applications requiring automotive-grade components.

Electrical Equivalence: Identical resistance (33 mOhms), tolerance (±1%), and power rating (1W) ensure direct functional replacement in current sense applications.

Performance Enhancement: The metal element composition of the substitute delivers superior temperature stability (±50ppm/°C versus ±400ppm/°C) and extended operating temperature capability (-55°C to 170°C versus -55°C to 125°C), supporting broader application environments without performance degradation.

Package Compatibility: Both parts utilize the 2512 (6432 Metric) package with identical termination count, enabling direct PCB layout compatibility and assembly process continuity.

Frequently Asked Questions (FAQ)

Q: Can the CRF2512-FZ-R033ELF be used as a direct replacement for the CRL2512-FV-R033ELF?

A: Yes. Both parts share identical electrical specifications (33 mOhms, ±1% tolerance, 1W power rating) and package designation (2512 / 6432 Metric). The substitute offers improved performance characteristics through metal element composition and lower temperature coefficient.

Q: What is the primary difference between these two parts?

A: The main difference is composition type and resulting performance. The CRL2512-FV-R033ELF uses thick film technology with ±400ppm/°C temperature coefficient, while the CRF2512-FZ-R033ELF uses metal element technology with ±50ppm/°C temperature coefficient. The substitute also supports higher maximum operating temperature (170°C versus 125°C).

Q: Are there any PCB layout or assembly considerations when substituting these parts?

A: No. Both parts use the 2512 (6432 Metric) package with identical footprint and termination configuration. Existing PCB designs require no modification for component substitution.

Q: Does the substitute part carry any additional certifications?

A: Yes. The CRF2512-FZ-R033ELF carries AEC-Q200 automotive qualification and is designated as moisture resistant, providing additional reliability documentation beyond the base specifications.

Q: What is the moisture sensitivity level for both parts?

A: Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are both parts RoHS compliant?

A: Yes. Both the CRL2512-FV-R033ELF and CRF2512-FZ-R033ELF are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Q: Which part should be selected for new designs?

A: The CRF2512-FZ-R033ELF is the appropriate choice for new designs due to its Active product status, superior temperature stability, extended operating temperature range, and automotive-grade qualification.