Equivalent & Substitute Parts for WHB4R0FE

Part Overview

The WHB4R0FE is a 4 Ohm, 1% tolerance, 1W axial wirewound through-hole resistor manufactured by Ohmite. This component is classified as Active product status with 955 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set for axial wirewound resistor applications.

Substiute Parts

WHB4R0FE

OhmiteIn Stock: 1036WHB4R0FE Datasheet

Current PartRFQ

41F4R0E

OhmiteIn Stock: 163941F4R0E Datasheet

MFR RecommendedRFQ

ALSR014R000FE12

Vishay DaleIn Stock: 860ALSR014R000FE12 Datasheet

MFR RecommendedRFQ

RS01A4R000FE70

Vishay DaleIn Stock: 1611RS01A4R000FE70 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WHB4R0FE is determined by strict equivalence across the following parameters: resistance value (4 Ohms), tolerance (±1%), power rating (1W), composition (wirewound), package type (axial), and temperature coefficient (±50ppm/°C). All identified substitute parts maintain these core electrical and mechanical specifications. Variations in physical dimensions, operating temperature range, moisture resistance features, and packaging format (bulk vs. cut tape) do not disqualify substitution when the primary functional parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (41F4R0E, ALSR014R000FE12, RS01A4R000FE70) maintain electrical equivalence to the WHB4R0FE across resistance, tolerance, power rating, composition, and temperature coefficient specifications. Selection among substitutes is based on product availability, packaging requirements, and compliance certifications.

The 41F4R0E (Ohmite, 1587 units in stock) provides direct manufacturer continuity with RoHS compliance and bulk packaging. The ALSR014R000FE12 (Vishay Dale, 826 units in stock) and RS01A4R000FE70 (Vishay Dale, 1591 units in stock) both offer ROHS3 compliance, moisture-resistant construction, and extended operating temperature range (-65°C ~ 250°C). The RS01A4R000FE70 is supplied in cut tape format, while ALSR014R000FE12 is supplied in bulk format.

Frequently Asked Questions (FAQ)

Q: Can the 41F4R0E replace the WHB4R0FE in all applications? A: Yes. The 41F4R0E maintains equivalent resistance (4 Ohms), tolerance (±1%), power rating (1W), composition (wirewound), and temperature coefficient (±50ppm/°C). Physical dimensions differ, but both are axial package format with 2 terminations. Verify PCB layout accommodates the 41F4R0E dimension of 0.126" Dia x 0.437" L versus the WHB4R0FE dimension of 0.130" Dia x 0.276" L.

Q: What is the difference between the Vishay Dale substitutes? A: Both ALSR014R000FE12 and RS01A4R000FE70 maintain identical electrical specifications. The primary differences are physical dimensions and packaging format. ALSR014R000FE12 measures 0.110" Dia x 0.406" L in bulk packaging. RS01A4R000FE70 measures 0.094" Dia x 0.406" L in cut tape packaging. Both offer moisture-resistant construction and extended operating temperature to -65°C ~ 250°C.

Q: Are all substitutes RoHS compliant? A: Yes. The WHB4R0FE is ROHS3 compliant. The 41F4R0E is RoHS compliant. Both ALSR014R000FE12 and RS01A4R000FE70 are ROHS3 compliant. All parts meet regulatory requirements for restricted substance compliance.

Q: Does operating temperature range affect substitution eligibility? A: Operating temperature range is not a substitution-limiting parameter for this product category. The WHB4R0FE operates -55°C ~ 150°C. The Vishay Dale substitutes extend to -65°C ~ 250°C, providing broader environmental capability without compromising compatibility in the WHB4R0FE operating window.

Q: Can I use cut tape packaging (RS01A4R000FE70) in place of bulk packaging? A: Yes. Packaging format does not affect electrical or mechanical compatibility. RS01A4R000FE70 in cut tape format is functionally equivalent to bulk-packaged alternatives. Verify your assembly process accommodates cut tape supply format.