WNA250FE Equivalent & Substitute Parts

Part Overview

The WNA250FE is a 250 Ohm ±1% 0.5W through-hole resistor manufactured by Ohmite, part of the WN series wirewound resistor line. This component is an active product with ROHS3 compliance and is designed for applications requiring non-inductive axial resistors with tight tolerance specifications. Substitute parts are identified when identical electrical and mechanical parameters are maintained across packaging and supplier configurations.

Substiute Parts

WNA250FE

OhmiteIn Stock: 896WNA250FE Datasheet

Current PartRFQ

WNA250FET

OhmiteIn Stock: 1642WNA250FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WNA250FE is determined by matching the following critical parameters:

• Resistance value: 250 Ohms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Composition: Wirewound
• Non-inductive feature requirement
• Temperature coefficient: ±20ppm/°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: ROHS3

The WNA250FET qualifies as a direct substitute because all electrical characteristics, mechanical dimensions, and compliance certifications are identical to the main part. The difference is limited to packaging configuration (Cut Tape versus standard packaging).

Parameter Comparison

Engineering Selection Recommendations

Both WNA250FE and WNA250FET are active products from Ohmite with identical electrical specifications and mechanical compatibility. Selection between these parts should be based on packaging requirements and supply chain availability. The WNA250FET in Cut Tape packaging may be preferred for automated assembly processes, while the WNA250FE standard packaging may be suitable for manual assembly or kit applications. Both parts maintain ROHS3 compliance and are suitable for the same circuit applications without functional or performance differences.

Frequently Asked Questions (FAQ)

Q: Can WNA250FET be used as a direct replacement for WNA250FE?

A: Yes. Both parts have identical electrical characteristics (250 Ohms ±1%, 0.5W), composition (wirewound, non-inductive), temperature performance (±20ppm/°C, -55°C to 150°C), and physical dimensions (0.100" Dia x 0.200" L). The only difference is packaging configuration.

Q: What is the difference between WNA250FE and WNA250FET?

A: The primary difference is packaging. WNA250FE uses standard packaging, while WNA250FET is supplied in Cut Tape (CT) configuration. All electrical and mechanical specifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both WNA250FE and WNA250FET are ROHS3 compliant and REACH unaffected.

Q: What applications require the non-inductive feature of these resistors?

A: The non-inductive wirewound construction is specified in the product data. Selection should be based on circuit requirements as defined in your application documentation.

Q: Can these parts be used in temperature extremes?

A: Both parts are rated for -55°C to 150°C operating temperature range. Specific application suitability should be verified against your circuit design requirements.