Equivalent & Substitute Parts for Ohmite 825F2R0

Part Overview

The Ohmite 825F2R0 is a 2 Ohms ±1% 25W wirewound chassis mount resistor from the Metal-Mite®89 series. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing procurement and system maintenance. The 825F2R0E serves as the direct active substitute, maintaining identical electrical and mechanical specifications while offering improved compliance status and current availability.

Substiute Parts

825F2R0

OhmiteIn Stock: 877825F2R0 Datasheet

Current PartRFQ

825F2R0E

OhmiteIn Stock: 1235825F2R0E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 825F2R0E qualifies as a direct equivalent based on the following critical parameters:

• Electrical Specifications: Identical resistance value (2 Ohms), tolerance (±1%), power rating (25W), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C to 275°C)
• Mechanical Compatibility: Matching housing type (Aluminum), mounting feature (Flanges), lead style (Solder Lugs), and physical dimensions (1.062" L × 1.094" W, height 0.556" max)
• Composition: Both utilize wirewound construction
• Series Continuity: Both belong to the Metal-Mite®89 series

The primary distinction is product status and packaging: the 825F2R0 is obsolete with dash packaging, while the 825F2R0E is active with tray packaging.

Parameter Comparison

Engineering Selection Recommendations

The 825F2R0E is the appropriate selection for new designs and component replenishment. This part maintains complete electrical and mechanical equivalence to the obsolete 825F2R0 while offering the following advantages:

• Active Product Status: Currently manufactured and supported by Ohmite
• Improved Compliance: ROHS3 compliant, compared to the non-compliant status of the original part
• Availability: 1210 pieces in current inventory versus the limited stock of the obsolete variant
• Regulatory Alignment: Meets modern environmental and procurement standards

For existing systems currently using the 825F2R0, direct substitution with the 825F2R0E is electrically and mechanically valid without circuit modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Are the 825F2R0 and 825F2R0E electrically identical?

A: Yes. Both parts share identical resistance (2 Ohms), tolerance (±1%), power rating (25W), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C to 275°C).

Q: What is the difference between these two part numbers?

A: The 825F2R0E is the active production variant with tray packaging and ROHS3 compliance. The 825F2R0 is obsolete with dash packaging and non-compliant RoHS status.

Q: Can I use the 825F2R0E as a direct replacement in existing assemblies?

A: Yes. The 825F2R0E is mechanically and electrically compatible. Physical dimensions, mounting features, lead style, and all electrical parameters are identical.

Q: Does packaging type affect component performance?

A: No. Packaging (dash versus tray) affects handling, storage, and procurement logistics but does not alter electrical or mechanical performance.

Q: Is RoHS compliance a functional requirement for substitution?

A: RoHS compliance is a regulatory and procurement requirement. The 825F2R0E's ROHS3 compliance aligns with modern environmental standards, whereas the original 825F2R0 does not meet this requirement.

Q: Are there any other equivalent parts in the Metal-Mite®89 series?

A: Based on the provided data, the 825F2R0E is the only listed direct equivalent for the 825F2R0.