LVC25FR500EV Equivalent & Substitute Parts

Part Overview

The LVC25FR500EV is a 500 mOhms ±1% 1W chip resistor in 2512 (6432 Metric) package manufactured by Ohmite. This thick film current sense resistor features moisture resistant construction and operates across -40°C to 125°C. The part is classified as obsolete, making substitute components necessary for ongoing production and maintenance applications.

Substiute Parts

LVC25FR500EV

OhmiteIn Stock: 780LVC25FR500EV Datasheet

Current PartRFQ

CRM2512-FX-R500ELF

Bourns Inc.In Stock: 15046CRM2512-FX-R500ELF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LVC25FR500EV is based on the following critical parameters:

• Resistance value: 500 mOhms
• Tolerance: ±1%
• Package / Case: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)

The CRM2512-FX-R500ELF from Bourns Inc. qualifies as a direct substitute. While this part offers enhanced power rating (2W versus 1W) and extended operating temperature range (-55°C ~ 155°C versus -40°C ~ 125°C), it maintains identical resistance, tolerance, package, composition, and environmental specifications. The increased power capability and wider temperature range provide additional design margin without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CRM2512-FX-R500ELF is the recommended substitute for the obsolete LVC25FR500EV. Selection is based on:

• Identical electrical specifications (resistance, tolerance, temperature coefficient)
• Identical package and mechanical compatibility (2512 / 6432 Metric)
• Matching composition and current sense functionality
• Active product status ensuring long-term availability
• ROHS3 compliance and unlimited moisture sensitivity rating maintained
• Enhanced power rating and extended operating temperature range provide additional design margin

Frequently Asked Questions (FAQ)

Q: Can the CRM2512-FX-R500ELF directly replace the LVC25FR500EV in existing designs?

A: Yes. Both parts share identical resistance, tolerance, package, composition, and environmental specifications. The substitute offers higher power rating and wider temperature range, making it suitable for direct substitution without circuit modification.

Q: What is the significance of the 2512 package designation?

A: The 2512 package (6432 Metric) is a standardized chip resistor footprint measuring 0.250" L x 0.130" W (approximately 6.35mm x 3.30mm). Both the original and substitute parts use this identical package, ensuring PCB layout compatibility.

Q: Why does the substitute have a higher power rating (2W vs 1W)?

A: The CRM2512-FX-R500ELF is rated for 2W dissipation compared to the original 1W rating. This enhanced capability does not affect compatibility and provides additional thermal margin in current sense applications.

Q: Are there any compliance differences between the original and substitute?

A: Both parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Compliance certifications are equivalent, supporting use in regulated applications.

Q: What is the operating temperature difference between these parts?

A: The LVC25FR500EV operates from -40°C to 125°C, while the CRM2512-FX-R500ELF operates from -55°C to 155°C. The substitute provides extended temperature range, beneficial for applications in extreme environments.