WLAR025FE Equivalent & Substitute Parts

Part Overview

The WLAR025FE is a 25 mOhms ±1% wirewound axial resistor rated for 0.5W (1/2W) power dissipation, manufactured by Ohmite as part of the WL series. This component is designed for current sensing applications requiring moisture-resistant construction and tight tolerance specifications. The part maintains Active product status with 1150 units currently in stock.

Substitute parts are identified when packaging configurations differ while maintaining identical electrical and mechanical specifications, enabling procurement flexibility and supply chain optimization.

Substiute Parts

WLAR025FE

OhmiteIn Stock: 1260WLAR025FE Datasheet

Current PartRFQ

WLAR025FET

OhmiteIn Stock: 3068WLAR025FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WLAR025FE is determined by equivalence across the following critical parameters:

• Resistance value: 25 mOhms
• Tolerance specification: ±1%
• Power rating: 0.5W (1/2W)
• Composition: Wirewound
• Package case: Axial
• Physical dimensions: 0.100" Dia x 0.200" L (2.54mm x 5.08mm)
• Temperature coefficient: ±300ppm/°C
• Termination count: 2

The WLAR025FET qualifies as a direct substitute based on matching all electrical and mechanical parameters. The distinction between these parts is limited to packaging configuration: WLAR025FE is supplied in standard packaging, while WLAR025FET is supplied in Tape & Reel (TR) format for automated assembly processes.

Parameter Comparison

Engineering Selection Recommendations

Both WLAR025FE and WLAR025FET are Active products manufactured by Ohmite with full RoHS compliance. Selection between these parts should be based on assembly methodology and procurement requirements:

• WLAR025FE: Suitable for manual assembly, prototyping, and low-volume production runs where standard packaging is acceptable.
• WLAR025FET: Specified for automated pick-and-place assembly processes utilizing tape-and-reel feeding systems, typical in high-volume manufacturing environments.

Both parts satisfy identical electrical performance requirements for current sensing applications. The WLAR025FET offers higher current inventory availability (3033 units versus 1150 units), which may influence lead time considerations for high-volume orders.

Frequently Asked Questions (FAQ)

Q: Can WLAR025FET be used as a direct replacement for WLAR025FE in manual assembly applications?

A: Yes. Both parts are electrically and mechanically identical. The WLAR025FET can be manually extracted from tape-and-reel packaging and used in manual assembly processes without performance degradation.

Q: Are there any dimensional differences between WLAR025FE and WLAR025FET?

A: No. Both parts share identical physical dimensions of 0.100" Dia x 0.200" L (2.54mm x 5.08mm) and are housed in the same Axial package configuration.

Q: What is the significance of the packaging format difference?

A: Packaging format affects procurement and assembly methodology. Standard packaging (WLAR025FE) is used for manual assembly and small-quantity orders. Tape & Reel packaging (WLAR025FET) is optimized for automated assembly equipment and high-volume production.

Q: Do both parts meet the same compliance standards?

A: Both parts are RoHS compliant and Active products. WLAR025FE carries RoHS3 certification, while WLAR025FET carries standard RoHS certification. Both meet regulatory requirements for electronic component use.

Q: Are the electrical specifications identical between these parts?

A: Yes. Resistance (25 mOhms), tolerance (±1%), power rating (0.5W), temperature coefficient (±300ppm/°C), and all other electrical parameters are identical across both part numbers.