Equivalent & Substitute Parts for LVC20FR050EV

Part Overview

The LVC20FR050EV is a 50 mOhms ±1% thick film chip resistor manufactured by Ohmite, rated for 0.75W power dissipation in a 2010 (5025 Metric) package. Designed for current sense applications with moisture-resistant construction, this component operates across -40°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

LVC20FR050EV

OhmiteIn Stock: 817LVC20FR050EV Datasheet

Current PartRFQ

CSR2010FK50L0

Stackpole Electronics IncIn Stock: 977CSR2010FK50L0 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LVC20FR050EV is determined by strict equivalence across the following parameters:

• Resistance Value: 50 mOhms exact match required
• Tolerance: ±1% required
• Package / Case: 2010 (5025 Metric) form factor required for PCB compatibility
• Composition: Thick film construction required
• Temperature Coefficient: ±100ppm/°C required for thermal stability
• RoHS Compliance: ROHS3 Compliant status required

The CSR2010FK50L0 from Stackpole Electronics Inc satisfies all substitution criteria. While this substitute offers enhanced power rating (1W versus 0.75W) and extended operating temperature range (-55°C ~ 155°C), these represent functional improvements that do not compromise compatibility. The identical package footprint, resistance value, tolerance, and composition ensure direct mechanical and electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

The CSR2010FK50L0 is the qualified substitute for the obsolete LVC20FR050EV. Selection is based on the following engineering criteria:

Product Status: The LVC20FR050EV is classified as obsolete, making the active CSR2010FK50L0 the appropriate replacement for new designs and ongoing production requirements.

Compliance and Certifications: Both components maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility across applications.

Electrical Equivalence: Identical resistance value (50 mOhms), tolerance (±1%), and temperature coefficient (±100ppm/°C) guarantee electrical performance parity in current sense applications.

Mechanical Compatibility: Both components utilize the 2010 (5025 Metric) package with identical footprint dimensions (0.197" L x 2.50mm/2.54mm W, 0.026" max height), enabling direct PCB substitution without layout modification.

Performance Enhancement: The CSR2010FK50L0 provides increased power rating (1W versus 0.75W) and extended operating temperature range (-55°C ~ 155°C versus -40°C ~ 125°C), offering improved thermal margin and environmental tolerance without introducing compatibility concerns.

Frequently Asked Questions (FAQ)

Q: Can the CSR2010FK50L0 be used as a direct replacement for the LVC20FR050EV?

A: Yes. Both components share identical resistance value, tolerance, temperature coefficient, and 2010 package footprint. The CSR2010FK50L0 is electrically and mechanically interchangeable with the obsolete LVC20FR050EV.

Q: What is the primary reason for substitution?

A: The LVC20FR050EV is obsolete. The CSR2010FK50L0 is an active product from Stackpole Electronics Inc that meets all electrical and mechanical requirements for direct substitution.

Q: Are there any differences in package dimensions?

A: Both components use the 2010 (5025 Metric) package. Length is identical at 0.197" (5.00mm). Width differs marginally (0.098" versus 0.100", or 2.50mm versus 2.54mm), which is within standard PCB tolerance and does not affect footprint compatibility. Maximum seated height is identical at 0.026" (0.65mm).

Q: Does the higher power rating of the CSR2010FK50L0 affect compatibility?

A: No. The increased power rating (1W versus 0.75W) represents a functional improvement that does not compromise compatibility. Applications designed for the 0.75W LVC20FR050EV will operate within the thermal envelope of the 1W CSR2010FK50L0.

Q: Are both components RoHS compliant?

A: Yes. Both the LVC20FR050EV and CSR2010FK50L0 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the temperature coefficient significance?

A: Both components maintain ±100ppm/°C temperature coefficient, ensuring identical thermal stability characteristics across the operating temperature range. This parameter is critical for current sense applications requiring precision resistance stability.