WNC4R0FE Equivalent & Substitute Parts

Part Overview

The WNC4R0FE is a 4 Ohm ±1% 2W axial wirewound resistor manufactured by Ohmite. This non-inductive through-hole component is designed for applications requiring precision resistance with low inductance characteristics. The part is currently discontinued at DiGi Electronics, making substitute parts necessary for ongoing production and maintenance applications. Equivalent and substitute parts maintain identical electrical specifications while offering different packaging options or active product status.

Substiute Parts

WNC4R0FE

OhmiteIn Stock: 717WNC4R0FE Datasheet

Current PartRFQ

WNC4R0FET

OhmiteIn Stock: 913WNC4R0FET Datasheet

DirectRFQ

WHC4R0FE

OhmiteIn Stock: 728WHC4R0FE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the WNC4R0FE is determined by matching the following critical parameters: resistance value (4 Ohms), tolerance (±1%), power rating (2W), composition (wirewound), operating temperature range (-55°C to 150°C), and package type (axial). All identified substitutes maintain these specifications. The primary distinction between substitute parts is packaging format and product status. The WNC4R0FET variant provides the same electrical and mechanical specifications in Tape & Reel packaging with active product status. The WHC4R0FE represents a parametric equivalent from the WH series, maintaining all core electrical parameters while differing in series designation and non-inductive feature specification.

Parameter Comparison

Engineering Selection Recommendations

WNC4R0FET is the primary direct substitute for WNC4R0FE. Both parts are from the Ohmite WN series and share identical electrical and mechanical specifications. The WNC4R0FET differs only in packaging format (Tape & Reel versus bulk) and maintains active product status, ensuring continued availability. This substitute is suitable for applications requiring the same performance characteristics with the advantage of automated assembly compatibility.

WHC4R0FE serves as a parametric equivalent from the Ohmite WH series. It maintains all critical electrical parameters including resistance, tolerance, power rating, temperature coefficient, and operating temperature range. The WHC4R0FE is also ROHS3 compliant and active in production. Selection between WN and WH series should be based on specific application requirements and design validation history, as both meet the stated electrical and environmental specifications.

All three parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can WNC4R0FET be used as a direct replacement for WNC4R0FE? A: Yes. WNC4R0FET is a direct substitute with identical electrical specifications (4 Ohms ±1%, 2W, wirewound, non-inductive) and mechanical dimensions. The only difference is packaging format: WNC4R0FET is supplied in Tape & Reel format while WNC4R0FE is bulk packaged. Both are suitable for the same circuit applications.

Q: What is the difference between WNC4R0FE and WHC4R0FE? A: Both parts are parametrically equivalent 4 Ohm ±1% 2W wirewound axial resistors with identical operating temperature ranges and compliance certifications. They differ in series designation (WN versus WH). WHC4R0FE does not specify non-inductive features in its description, though both maintain the same temperature coefficient and power rating.

Q: Is packaging format important for substitution? A: Packaging format affects assembly process compatibility but not electrical performance. WNC4R0FET in Tape & Reel format is suitable for automated assembly lines, while bulk-packaged alternatives are suitable for manual assembly or lower-volume applications. Electrical specifications remain identical regardless of packaging.

Q: Are all substitutes ROHS3 compliant? A: Yes. WNC4R0FE, WNC4R0FET, and WHC4R0FE are all ROHS3 compliant and REACH unaffected, meeting regulatory requirements for use in regulated markets.

Q: Which substitute should be selected for new designs? A: WNC4R0FET is recommended for new designs due to its active product status and availability. It provides identical performance to the discontinued WNC4R0FE with the added benefit of Tape & Reel packaging for modern assembly processes.