Equivalent & Substitute Parts for WHB75RFET

Part Overview

The WHB75RFET is a 75 Ohm, 1% tolerance, 1W axial wirewound through-hole resistor manufactured by Ohmite. This component is classified as Active and is ROHS3 Compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, packaging format preferences, or specific application requirements such as moisture resistance or non-inductive characteristics.

Substiute Parts

WHB75RFET

OhmiteIn Stock: 702WHB75RFET Datasheet

Current PartRFQ

41F75RE

OhmiteIn Stock: 125941F75RE Datasheet

MFR RecommendedRFQ

RS01A75R00FE70

Vishay DaleIn Stock: 1906RS01A75R00FE70 Datasheet

MFR RecommendedRFQ

WNB75RFET

OhmiteIn Stock: 2796WNB75RFET Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WHB75RFET are qualified based on the following criteria:

Core Electrical Parameters (Required Match):

• Resistance: 75 Ohms
• Tolerance: ±1%
• Power Rating: 1W
• Composition: Wirewound
• Temperature Coefficient: ±20ppm/°C

Mechanical Parameters (Required Match):

• Package Type: Axial
• Number of Terminations: 2

Allowable Variations:

• Packaging format (Tape & Reel, Bulk, Cut Tape)
• Physical dimensions (within axial form factor)
• Operating temperature range (may exceed minimum specification)
• Special features (moisture resistance, non-inductive construction)
• Manufacturer identity

All substitute parts maintain identical electrical performance while offering alternative packaging, enhanced environmental ratings, or specialized construction features.

Parameter Comparison

Engineering Selection Recommendations

All four parts meet the core electrical and mechanical requirements for direct substitution. Selection among these alternatives is determined by application-specific needs:

WHB75RFET (Ohmite WH Series): Primary specification. Tape & Reel packaging suitable for automated assembly. ROHS3 Compliant. Standard operating temperature range -55°C to 150°C.

41F75RE (Ohmite Ohmicone® 40 Series): Bulk packaging format. ROHS3 Compliant. Suitable for manual assembly or applications where tape packaging is not required. Operating temperature range not specified in available data.

RS01A75R00FE70 (Vishay Dale RS Series): Extended operating temperature range -65°C to 250°C. Moisture Resistant construction. Cut Tape packaging. ROHS3 Compliant. Recommended for high-temperature or high-humidity environments.

WNB75RFET (Ohmite WN Series): Non-Inductive construction. Tape & Reel packaging. RoHS Compliant. Identical physical dimensions and operating temperature to WHB75RFET. Recommended for RF or high-frequency applications where inductive effects must be minimized.

Frequently Asked Questions (FAQ)

Q: Can WHB75RFET be replaced with 41F75RE? A: Yes. Both parts are Ohmite wirewound axial resistors with identical electrical specifications (75 Ohms, ±1%, 1W, ±20ppm/°C). The primary difference is packaging format: WHB75RFET is supplied in Tape & Reel while 41F75RE is supplied in Bulk. Electrical performance is equivalent.

Q: What is the advantage of RS01A75R00FE70 over WHB75RFET? A: RS01A75R00FE70 offers an extended operating temperature range (-65°C to 250°C versus -55°C to 150°C) and includes moisture-resistant construction. These features are beneficial for applications requiring operation in elevated temperature or high-humidity environments. Electrical specifications remain identical.

Q: When should WNB75RFET be selected instead of WHB75RFET? A: WNB75RFET features non-inductive construction, which reduces parasitic inductance in the resistor element. This characteristic is critical for RF circuits, high-frequency applications, or precision signal conditioning where inductive reactance would degrade performance. Both parts share identical resistance, tolerance, power rating, and operating temperature range.

Q: Are all substitute parts ROHS compliant? A: WHB75RFET, 41F75RE, and RS01A75R00FE70 are ROHS3 Compliant. WNB75RFET is RoHS Compliant. All four parts meet regulatory requirements for lead-free construction.

Q: Do packaging format differences affect electrical performance? A: No. Packaging format (Tape & Reel, Bulk, or Cut Tape) affects only handling, storage, and assembly processes. Electrical and thermal characteristics remain unchanged across all substitute parts.

Q: Can these parts be used interchangeably in PCB assembly? A: Yes, provided the PCB footprint accommodates the axial package form factor. Physical dimensions vary slightly among parts (diameter and length), but all conform to standard axial resistor specifications. Verify mechanical clearance before substitution.