LVC06FR249EV Equivalent & Substitute Parts

Part Overview

The LVC06FR249EV is a 249 mOhm ±1% thick film chip resistor manufactured by Ohmite in 1206 (3216 Metric) package format. Designed for current sensing applications with moisture-resistant construction, this component operates across -40°C to 125°C with 0.5W power rating. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

LVC06FR249EV

OhmiteIn Stock: 991LVC06FR249EV Datasheet

Current PartRFQ

PT1206FR-070R249L

YAGEOIn Stock: 1111PT1206FR-070R249L Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete LVC06FR249EV is based on the following critical parameters that must remain constant or compatible:

• Resistance Value: 249 mOhms (exact match required)
• Tolerance: ±1% (maintains measurement accuracy in current sensing circuits)
• Package Format: 1206 (3216 Metric) (ensures PCB footprint compatibility)
• Composition: Thick Film (maintains thermal and frequency characteristics)
• Application Function: Current Sense (confirms suitability for the intended circuit role)
• Moisture Resistance: Required feature for reliability
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

The PT1206FR-070R249L from YAGEO meets all substitution criteria. While the power rating differs (0.25W vs. 0.5W), this represents a conservative design margin acceptable for current sensing applications where actual power dissipation typically remains below rated specifications.

Parameter Comparison

Engineering Selection Recommendations

The PT1206FR-070R249L is the direct equivalent for LVC06FR249EV replacement. Selection rationale:

• Active Product Status: PT1206FR-070R249L maintains active production status, ensuring long-term availability and supply chain continuity.
• Electrical Equivalence: Identical resistance value (249 mOhms) and tolerance (±1%) guarantee functional compatibility in current sensing circuits.
• Enhanced Temperature Performance: Operating range of -55°C to 155°C exceeds the original specification, providing broader application flexibility.
• Improved Temperature Coefficient: ±75ppm/°C represents superior stability compared to the original ±100ppm/°C specification.
• Automotive Qualification: AEC-Q200 certification indicates compliance with automotive reliability standards, applicable to industrial and automotive applications.
• Regulatory Compliance: ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) maintain environmental and reliability standards.

The lower power rating (0.25W vs. 0.5W) is acceptable for current sensing applications where actual power dissipation remains within design margins.

Frequently Asked Questions (FAQ)

Q: Can PT1206FR-070R249L directly replace LVC06FR249EV without circuit modification?

A: Yes. Both components share identical resistance value, tolerance, package format, and composition. Direct substitution on the PCB is possible without design changes.

Q: Why does the substitute have a lower power rating (0.25W vs. 0.5W)?

A: Current sensing resistors typically operate well below their rated power capacity. The 0.25W rating of the substitute remains adequate for standard current sensing applications. Circuit thermal analysis should confirm actual power dissipation remains within the substitute's rating.

Q: Are there compatibility concerns with the different temperature coefficients?

A: The substitute's ±75ppm/°C coefficient is superior to the original ±100ppm/°C specification, providing better measurement stability across temperature variations. This represents an improvement for precision current sensing.

Q: Does the extended operating temperature range (-55°C to 155°C) affect compatibility?

A: No. The extended range is a superset of the original -40°C to 125°C specification, ensuring compatibility across all original operating conditions and enabling use in broader temperature environments.

Q: What is the significance of AEC-Q200 certification on the substitute?

A: AEC-Q200 certification indicates the component meets automotive reliability and quality standards. This qualification is beneficial for applications requiring enhanced reliability documentation, though not mandatory for non-automotive use.

Q: Are both components RoHS compliant?

A: Yes. Both LVC06FR249EV and PT1206FR-070R249L are ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is Moisture Sensitivity Level (MSL) 1, and why is it important?

A: MSL 1 indicates unlimited shelf life without moisture absorption concerns. Both components carry this rating, eliminating moisture-related handling restrictions during storage and assembly.