WHC51RFE Equivalent & Substitute Parts

Part Overview

The WHC51RFE is a 51 Ohm, 1% tolerance, 2W axial wirewound through-hole resistor manufactured by Ohmite. This component is classified as Active and maintains 653 pieces in current inventory. Substitute parts are necessary when packaging requirements differ, when specific non-inductive characteristics are required, or when managing supply chain continuity across manufacturing batches and distribution channels.

Substiute Parts

WHC51RFE

OhmiteIn Stock: 735WHC51RFE Datasheet

Current PartRFQ

WHC51RFET

OhmiteIn Stock: 4226WHC51RFET Datasheet

DirectRFQ

WNC51RFE

OhmiteIn Stock: 1062WNC51RFE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WHC51RFE is determined by strict equivalence across the following parameters: resistance value (51 Ohms), tolerance (±1%), power rating (2W), composition (wirewound), package type (axial), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C to 150°C). Packaging format (bulk versus tape & reel) and non-inductive feature availability represent the primary differentiators among qualified substitutes. All substitute parts maintain identical electrical performance specifications and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

WHC51RFET serves as the primary direct substitute for WHC51RFE. Both parts are manufactured by Ohmite, maintain identical electrical and mechanical specifications, and are classified as Active products. The WHC51RFET is supplied in Tape & Reel packaging format and incorporates non-inductive construction. This part demonstrates higher inventory availability (4147 pieces) and is suitable for automated assembly processes requiring reel-fed components.

WNC51RFE is classified as a parametric equivalent and is discontinued at DiGi Electronics. While this part maintains all critical electrical parameters and physical dimensions, its discontinued status limits its suitability for new designs or long-term supply chain planning. This part is retained in the reference for legacy system maintenance and repair applications where existing inventory remains available.

Frequently Asked Questions (FAQ)

Q: Can WHC51RFET replace WHC51RFE in all applications? A: Yes. Both parts maintain identical resistance (51 Ohms), tolerance (±1%), power rating (2W), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C to 150°C). The primary difference is packaging format: WHC51RFET is supplied in Tape & Reel while WHC51RFE is supplied in bulk. The non-inductive feature of WHC51RFET does not degrade performance in standard applications.

Q: What is the difference between WHC51RFE and WHC51RFET? A: The parts are electrically and mechanically identical. WHC51RFET includes non-inductive construction and is packaged in Tape & Reel format for automated assembly. WHC51RFE is supplied in bulk packaging. Both are Active products from Ohmite.

Q: Is WNC51RFE suitable for new designs? A: No. WNC51RFE is discontinued at DiGi Electronics and should not be specified for new designs. This part is available only for legacy system maintenance where existing inventory is present.

Q: Are all substitute parts RoHS compliant? A: Yes. WHC51RFE and WNC51RFE are ROHS3 Compliant. WHC51RFET is RoHS Compliant. All parts meet regulatory requirements for their respective compliance standards.

Q: What packaging format should I select? A: Select Tape & Reel (WHC51RFET) for automated assembly and high-volume production. Select bulk packaging (WHC51RFE) for manual assembly or low-volume applications. Electrical performance is identical between formats.