LVR01R0500FE70 Equivalent & Substitute Parts

Part Overview

The LVR01R0500FE70 is a 50 mOhms ±1% 1W axial wirewound resistor manufactured by Vishay Dale, designed for current sense applications with moisture-resistant construction. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure long-term supply availability.

Substiute Parts

LVR01R0500FE70

Vishay DaleIn Stock: 967LVR01R0500FE70 Datasheet

Current PartRFQ

MR5FT50L0

Stackpole Electronics IncIn Stock: 6001MR5FT50L0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LVR01R0500FE70 is determined by the following critical parameters:

• Resistance value: 50 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: Axial (mechanical and electrical compatibility)
• Features: Current sense application capability
• Compliance: ROHS3 compliance maintained

The MR5FT50L0 qualifies as a substitute based on matching resistance, tolerance, package type, and compliance requirements. Differences in power rating (5W vs 1W), composition (metal foil vs wirewound), and operating temperature range do not preclude substitution when the application circuit design accommodates the higher power rating and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MR5FT50L0 is an active product from Stackpole Electronics Inc and maintains ROHS3 compliance, addressing the obsolescence status of the LVR01R0500FE70. Both components meet the core electrical requirements: 50 mOhms resistance at ±1% tolerance in axial package configuration.

Selection of the MR5FT50L0 requires circuit-level evaluation of the higher power rating (5W vs 1W) and extended operating temperature range (-55°C ~ 275°C vs -65°C ~ 175°C). The metal foil composition of the substitute provides non-inductive and non-magnetic characteristics not present in the wirewound original.

Frequently Asked Questions (FAQ)

Q: Can the MR5FT50L0 directly replace the LVR01R0500FE70 in existing designs?

A: Direct replacement is possible from an electrical standpoint, as both components provide 50 mOhms at ±1% tolerance in axial package format. Physical dimensions differ (0.330" Dia x 0.925" L vs 0.115" Dia x 0.427" L), requiring PCB layout verification. The higher power rating of the substitute does not create incompatibility in circuits designed for the original 1W component.

Q: What are the key differences between these components?

A: The primary differences are composition (metal foil vs wirewound), power rating (5W vs 1W), operating temperature range (-55°C ~ 275°C vs -65°C ~ 175°C), and physical dimensions. The substitute offers non-inductive and non-magnetic characteristics. Temperature coefficient data is not provided for the substitute.

Q: Are both components RoHS compliant?

A: Yes, both the LVR01R0500FE70 and MR5FT50L0 are ROHS3 compliant. The MR5FT50L0 additionally carries REACH Unaffected status.

Q: What is the significance of the axial package type?

A: The axial package type defines the mechanical form factor and through-hole mounting configuration. Both components use this package type, ensuring compatibility with existing PCB designs without modification to pad layouts or mounting holes.

Q: Why is the LVR01R0500FE70 obsolete?

A: Product obsolescence is determined by the manufacturer. The MR5FT50L0 from Stackpole Electronics Inc is an active product offering equivalent electrical performance with extended operating temperature capability.