LVC20JR510EV Equivalent & Substitute Parts

Part Overview

The LVC20JR510EV is a 510 mOhms ±5% thick film chip resistor in 2010 (5025 Metric) package rated for 0.75W power dissipation. Manufactured by Ohmite, this current sense resistor features moisture-resistant construction and operates across -40°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility while meeting current procurement requirements.

Substiute Parts

LVC20JR510EV

OhmiteIn Stock: 1056LVC20JR510EV Datasheet

Current PartRFQ

RCWE2010R510FKEA

Vishay DaleIn Stock: 18106RCWE2010R510FKEA Datasheet

UpgradeRFQ

73L6R51F

CTS Resistor ProductsIn Stock: 89173L6R51F Datasheet

MFR RecommendedRFQ

RL73H2HR51FTDF

TE Connectivity Passive ProductIn Stock: 911RL73H2HR51FTDF Datasheet

MFR RecommendedRFQ

RL73H2HR51FTE

TE Connectivity Passive ProductIn Stock: 936RL73H2HR51FTE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

• Resistance value: 510 mOhms (exact match required)
• Package type: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

Tolerance and power rating may vary within acceptable engineering limits. Substitute parts must maintain the same physical footprint and electrical characteristics to ensure direct replacement capability in existing designs.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with ROHS3 compliance and meet the core electrical and mechanical requirements for direct replacement of the obsolete LVC20JR510EV.

RCWE2010R510FKEA offers the highest power rating (1W) and extended operating temperature range (-55°C to 155°C). This part includes Automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability.

73L6R51F, RL73H2HR51FTDF, and RL73H2HR51FTE maintain the original 0.75W power rating and provide improved tolerance (±1% versus ±5%). The TE Connectivity parts (RL73H2HR51FTDF and RL73H2HR51FTE) offer extended upper temperature limit (155°C) compared to the CTS part (125°C).

Selection should be based on application-specific requirements for power dissipation, temperature range, and any automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can RCWE2010R510FKEA replace LVC20JR510EV in all applications?

A: RCWE2010R510FKEA is electrically and mechanically compatible. The higher power rating (1W versus 0.75W) and extended temperature range (-55°C to 155°C) provide additional design margin. Verify that the automotive AEC-Q200 qualification does not introduce procurement or compliance constraints for your application.

Q: What is the difference between the TE Connectivity parts RL73H2HR51FTDF and RL73H2HR51FTE?

A: Both parts are identical in electrical specifications and package. The difference lies in packaging format and supplier designation. Confirm packaging requirements (Tape & Reel) before selection.

Q: Does the improved tolerance (±1%) of substitute parts affect circuit design?

A: The ±1% tolerance of substitute parts is tighter than the original ±5% specification. This provides improved accuracy for current sensing applications but does not require design changes. Existing designs will function with improved performance.

Q: Are all substitute parts available in the same physical dimensions?

A: All substitute parts use the 2010 (5025 Metric) package with identical length and width (0.197" L × 0.098" W / 5.00mm × 2.50mm). Height variations are minimal (0.026" to 0.030" seated height), within standard PCB assembly tolerances.

Q: Which substitute part should be selected for extended temperature applications?

A: RCWE2010R510FKEA, RL73H2HR51FTDF, and RL73H2HR51FTE all support -55°C to 155°C operating range. The CTS part (73L6R51F) is limited to -55°C to 125°C. Select based on your specific temperature requirements and any automotive qualification needs.