LVC25JR050EV Equivalent & Substitute Parts

Part Overview

The LVC25JR050EV is a 50 mOhms ±5% 1W chip resistor manufactured by Ohmite in the 2512 (6432 Metric) package. This component is classified as a current sense thick film resistor with moisture resistant properties. The part is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. Substitute parts must maintain electrical performance within the application's tolerance and power requirements while meeting modern compliance standards.

Substiute Parts

LVC25JR050EV

OhmiteIn Stock: 1155LVC25JR050EV Datasheet

Current PartRFQ

CRM2512-FX-R050ELF

Bourns Inc.In Stock: 8930CRM2512-FX-R050ELF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LVC25JR050EV is determined by the following critical parameters:

• Resistance Value: Must be 50 mOhms
• Package Type: Must be 2512 (6432 Metric) for mechanical and thermal compatibility
• Composition: Thick film construction required for current sense application
• Temperature Coefficient: ±100ppm/°C maintains thermal stability
• Compliance: ROHS3 compliance required for regulatory alignment

The substitute part CRM2512-FX-R050ELF from Bourns Inc. meets all mandatory substitution criteria. While this substitute offers improved tolerance (±1% versus ±5%) and higher power rating (2W versus 1W), these represent performance enhancements rather than deviations from the original specification. The extended operating temperature range (-55°C ~ 155°C) and active product status provide additional advantages for long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The CRM2512-FX-R050ELF is the qualified substitute for the LVC25JR050EV based on the following factors:

• Electrical Equivalence: Identical resistance value and temperature coefficient ensure functional compatibility in current sense applications
• Package Compatibility: Identical 2512 (6432 Metric) package permits direct board-level substitution without layout modifications
• Compliance Alignment: Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating
• Product Availability: The substitute part holds active product status with confirmed inventory, ensuring supply chain continuity
• Performance Enhancement: The substitute's improved tolerance (±1%) and higher power rating (2W) provide design margin without introducing incompatibility

Frequently Asked Questions (FAQ)

Q: Can the CRM2512-FX-R050ELF be used as a direct replacement for the LVC25JR050EV?

A: Yes. Both parts share identical resistance value, package type, composition, and temperature coefficient. The substitute meets or exceeds all electrical and mechanical requirements of the original part.

Q: What is the significance of the tolerance difference (±5% versus ±1%)?

A: The substitute's tighter tolerance represents improved accuracy in resistance value. This enhancement does not create incompatibility; it provides better performance in current sense applications where precision is beneficial.

Q: Does the higher power rating (2W versus 1W) affect circuit operation?

A: No. A higher power rating indicates greater thermal capacity. The substitute can safely handle the same power dissipation as the original part while providing additional thermal margin.

Q: Are there packaging differences between these parts?

A: Both parts use the 2512 (6432 Metric) package. Physical dimensions are nearly identical, with negligible differences in height that do not affect PCB assembly or thermal performance.

Q: Why is the original part obsolete?

A: The LVC25JR050EV is classified as obsolete by the manufacturer. The CRM2512-FX-R050ELF represents the current-generation equivalent from an active manufacturer, ensuring long-term availability and support.

Q: Are both parts RoHS compliant?

A: Yes. Both the LVC25JR050EV and CRM2512-FX-R050ELF maintain ROHS3 compliance, meeting regulatory requirements for electronic component manufacturing and use.