WHAR25FE Equivalent & Substitute Parts

Part Overview

The WHAR25FE is a 250 mOhms ±1% 0.5W through-hole resistor manufactured by Ohmite in the WH series. This axial wirewound resistor is designed for applications requiring low-resistance precision components with stable performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and REACH unaffected certification. Substitute parts are identified to address inventory availability and packaging format requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

WHAR25FE

OhmiteIn Stock: 929WHAR25FE Datasheet

Current PartRFQ

WHAR25FET

OhmiteIn Stock: 3437WHAR25FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WHAR25FE are identified based on matching the following critical parameters:

• Resistance value: 250 mOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Composition: Wirewound
• Temperature coefficient: ±90ppm/°C
• Operating temperature range: -55°C to 150°C
• Package type: Axial
• Physical dimensions: 0.100" Dia x 0.200" L (2.54mm x 5.08mm)
• Termination count: 2
• Compliance certifications: RoHS3, REACH unaffected

The WHAR25FET is a direct equivalent manufactured by Ohmite with identical electrical and mechanical specifications. The primary distinction is packaging format: WHAR25FET is supplied in Cut Tape (CT) format, whereas WHAR25FE uses standard packaging. Both parts are Active status products suitable for direct substitution in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both WHAR25FE and WHAR25FET are Active status products from Ohmite's WH series with full RoHS3 compliance and REACH unaffected certification. Selection between these parts is determined by packaging requirements and inventory availability rather than electrical performance. The WHAR25FE and WHAR25FET are electrically and mechanically identical, with substitution appropriate for any application requiring a 250 mOhms ±1% wirewound axial resistor rated for 0.5W operation across -55°C to 150°C.

Frequently Asked Questions (FAQ)

Q: Can WHAR25FET replace WHAR25FE in production designs?

A: Yes. Both parts are manufactured by Ohmite with identical electrical specifications, tolerance, power rating, temperature coefficient, and operating range. The only difference is packaging format (Cut Tape versus standard packaging). Substitution is appropriate for any circuit application.

Q: What is the primary difference between WHAR25FE and WHAR25FET?

A: The parts are electrically and mechanically identical. WHAR25FET is supplied in Cut Tape (CT) packaging format, while WHAR25FE uses standard packaging. This distinction affects handling, storage, and automated assembly compatibility but does not impact component performance.

Q: Are both parts suitable for high-reliability applications?

A: Both WHAR25FE and WHAR25FET meet RoHS3 compliance and REACH unaffected requirements. Both maintain Active product status. Selection should be based on specific application requirements and packaging compatibility with assembly processes.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: resistance value (250 mOhms), tolerance (±1%), power rating (0.5W), composition (wirewound), temperature coefficient (±90ppm/°C), operating temperature range (-55°C to 150°C), package type (axial), and physical dimensions (0.100" Dia x 0.200" L).

Q: Can these parts be used interchangeably in automated assembly?

A: Packaging format differences may affect automated handling. WHAR25FET in Cut Tape format is optimized for tape-and-reel assembly systems, while WHAR25FE standard packaging may require different feeder compatibility. Verify equipment compatibility before production transition.