Equivalent & Substitute Parts for Ohmite 12FR025

Part Overview

The Ohmite 12FR025 is a 25 mOhms ±1% 2W axial through-hole resistor designed for current sense applications with non-inductive metal element construction. This component is classified as Active product status. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

12FR025

OhmiteIn Stock: 67812FR025 Datasheet

Current PartRFQ

12FR025E

OhmiteIn Stock: 164212FR025E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 12FR025 is determined by strict equivalence across the following critical parameters:

• Resistance value: 25 mOhms
• Tolerance: ±1%
• Power rating: 2W
• Composition: Metal Element
• Features: Current Sense, Non-Inductive
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C to 275°C
• Package type: Axial
• Physical dimensions: 0.094" Dia x 0.417" L (2.40mm x 10.60mm)
• Number of terminations: 2

The substitute part 12FR025E meets all electrical and mechanical parameters required for direct substitution. Packaging differences (Bulk vs. standard) do not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 12FR025 and 12FR025E are Active status components from Ohmite's Series 10 resistor line. The primary distinction is regulatory compliance: the 12FR025E carries ROHS3 compliance certification, while the 12FR025 is RoHS non-compliant. Selection between these parts should be based on application regulatory requirements. Both components maintain identical electrical performance and mechanical compatibility. Inventory availability differs, with 12FR025E offering higher stock levels (1566 Pcs vs. 645 Pcs).

Frequently Asked Questions (FAQ)

Q: Can 12FR025E be used as a direct replacement for 12FR025?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters including resistance, tolerance, power rating, temperature coefficient, operating temperature range, and physical dimensions.

Q: What is the difference between 12FR025 and 12FR025E?

A: The primary differences are packaging format (standard vs. Bulk) and RoHS compliance status. The 12FR025E is ROHS3 compliant while the 12FR025 is RoHS non-compliant. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with axial package orientation?

A: No. Both parts use identical axial through-hole packaging with 2.40mm diameter and 10.60mm length, ensuring mechanical compatibility in standard PCB layouts designed for axial resistors.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance status reflects manufacturing process and material composition but does not alter the electrical characteristics, temperature coefficient, or operating temperature range of either component.

Q: What applications are these parts suitable for?

A: These 25 mOhms current sense resistors with non-inductive metal element construction are designed for precision current measurement and monitoring applications requiring low resistance values with tight tolerance and stable temperature performance across the -55°C to 275°C operating range.