WHA75RFET Equivalent & Substitute Parts

Part Overview

The WHA75RFET is a 75 Ohm, ±1% tolerance, 0.5W axial wirewound through-hole resistor manufactured by Ohmite in the WH series. This component is classified as Active and is ROHS3 compliant. Equivalent and substitute parts are identified when applications require alternative sourcing due to inventory availability, packaging preferences, or specific feature requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

WHA75RFET

OhmiteIn Stock: 1040WHA75RFET Datasheet

Current PartRFQ

WNA75RFET

OhmiteIn Stock: 2147WNA75RFET Datasheet

Parametric EquivalentRFQ

WHA75RFE

OhmiteIn Stock: 807WHA75RFE Datasheet

DirectRFQ

WNA75RFET

OhmiteIn Stock: 2147WNA75RFET Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WHA75RFET are qualified based on matching the following critical parameters: resistance value (75 Ohms), tolerance (±1%), power rating (0.5W), composition (wirewound), package type (axial), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C to 150°C). Physical dimensions and termination count must also align. Substitutes are grouped by their relationship to the main part:

Parametric Equivalent (WNA75RFET): Matches all electrical and mechanical specifications. Differs in series designation (WN vs. WH) and includes non-inductive feature. Available in Tape & Reel packaging with higher inventory.

Direct Manufacturer Part (WHA75RFE): Identical series (WH) and electrical specifications. Differs in packaging configuration (bulk vs. Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

WNA75RFET is suitable as a parametric equivalent when non-inductive characteristics are acceptable or beneficial for the application. This part maintains full electrical and mechanical compatibility while offering higher inventory availability (2045 units). RoHS compliance is confirmed.

WHA75RFE is suitable when series continuity (WH) is preferred and bulk packaging is acceptable. Inventory is lower (737 units) compared to the main part. ROHS3 compliance is maintained.

Selection between substitutes should be based on packaging requirements (Tape & Reel vs. bulk), inventory availability, and whether non-inductive performance is required for the specific circuit application.

Frequently Asked Questions (FAQ)

Q: Can WNA75RFET replace WHA75RFET in all applications? A: WNA75RFET matches all critical electrical parameters (75 Ohms, ±1%, 0.5W, ±20ppm/°C, -55°C to 150°C) and physical dimensions. The non-inductive feature is an additional characteristic that does not prevent substitution in standard applications. Verify application requirements for inductive behavior if critical.

Q: What is the difference between WHA75RFE and WHA75RFET? A: Both are WH series wirewound resistors with identical electrical specifications. The primary difference is packaging: WHA75RFET is supplied in Tape & Reel format, while WHA75RFE is supplied in bulk packaging.

Q: Are all substitutes RoHS compliant? A: WHA75RFET and WHA75RFE are ROHS3 compliant. WNA75RFET is RoHS compliant. Both compliance levels are acceptable for RoHS-regulated applications.

Q: Do physical dimensions match across all parts? A: Yes. All three parts share identical axial dimensions of 0.100" diameter by 0.200" length (2.54mm x 5.08mm), ensuring mechanical compatibility in PCB layouts and through-hole applications.

Q: Which substitute has the best inventory availability? A: WNA75RFET has the highest inventory at 2045 units, compared to 949 units for WHA75RFET and 737 units for WHA75RFE.