RVC2512FT45K3 Equivalent & Substitute Parts

Part Overview

The RVC2512FT45K3 is a 45.3 kOhms ±1% 1W chip resistor in 2512 (6432 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor is designed for general-purpose applications requiring precision resistance values with moderate power dissipation. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific performance needs.

Substiute Parts

RVC2512FT45K3

Stackpole Electronics IncIn Stock: 1106RVC2512FT45K3 Datasheet

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CRM2512-FX-4532ELF

Bourns Inc.In Stock: 4683CRM2512-FX-4532ELF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RVC2512FT45K3 is determined by the following critical parameters:

• Resistance value: 45.3 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (minimum required)
• RoHS Status: ROHS3 Compliant (minimum required)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum required)

The CRM2512-FX-4532ELF from Bourns Inc. meets all substitution criteria. While this part features a higher power rating (2W versus 1W), it maintains identical electrical specifications for resistance, tolerance, temperature coefficient, and operating range. The mechanical dimensions are within acceptable tolerance for 2512 package footprints. Both parts share identical compliance certifications and moisture sensitivity ratings.

Parameter Comparison

Engineering Selection Recommendations

Both the RVC2512FT45K3 and CRM2512-FX-4532ELF are active production parts with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on application power dissipation requirements and PCB thermal management capabilities. The CRM2512-FX-4532ELF provides enhanced power handling capacity at 2W, making it suitable for applications where thermal margin or future design iterations may require increased power dissipation. Both parts maintain identical electrical performance characteristics and operating temperature specifications. Mechanical compatibility is confirmed within standard 2512 package tolerances.

Frequently Asked Questions (FAQ)

Q: Can CRM2512-FX-4532ELF replace RVC2512FT45K3 in existing designs?

A: Yes. Both parts share identical resistance values (45.3 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The 2512 package footprint is mechanically compatible. The higher power rating of the substitute part does not create compatibility issues in applications designed for 1W operation.

Q: What are the physical dimension differences between these parts?

A: RVC2512FT45K3 dimensions are 0.250" L x 0.126" W (6.35mm x 3.20mm) with maximum seated height of 0.026" (0.65mm). CRM2512-FX-4532ELF dimensions are 0.248" L x 0.122" W (6.30mm x 3.10mm) with maximum seated height of 0.031" (0.80mm). Both conform to 2512 (6432 Metric) package specifications and are suitable for standard PCB assembly processes.

Q: Are there compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory and environmental compliance requirements are identical.

Q: What is the primary difference between these parts?

A: The CRM2512-FX-4532ELF is rated for 2W power dissipation compared to the 1W rating of RVC2512FT45K3. All other electrical and mechanical specifications are equivalent. The substitute part includes current sense features in its product line, though this does not affect basic resistor functionality.