WHD15RFET Equivalent & Substitute Parts

Part Overview

The WHD15RFET is a 15 Ohm ±1% 3W axial wirewound through-hole resistor manufactured by Ohmite, currently in active production status. This component is used in applications requiring precision current limiting, load balancing, and power dissipation in electronic circuits. Substitute parts may be required due to packaging format availability, lead time constraints, or specific application requirements such as moisture resistance or non-inductive characteristics.

Substiute Parts

WHD15RFET

OhmiteIn Stock: 884WHD15RFET Datasheet

Current PartRFQ

43F15RE

OhmiteIn Stock: 96043F15RE Datasheet

MFR RecommendedRFQ

WND15RFET

OhmiteIn Stock: 1880WND15RFET Datasheet

Parametric EquivalentRFQ

RS02B15R00FE70

Vishay DaleIn Stock: 3866RS02B15R00FE70 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WHD15RFET is determined by the following critical parameters: resistance value (15 Ohms), tolerance (±1%), power rating (3W), composition (wirewound), and package type (axial). All substitute parts listed maintain these core electrical specifications. Packaging format variations (Tape & Reel, Cut Tape, Bulk) do not affect electrical performance but may influence procurement and assembly workflows. Physical dimensions may vary slightly between manufacturers while maintaining functional compatibility in standard through-hole PCB applications. Temperature coefficient and operating temperature range are secondary selection criteria for applications with specific thermal requirements.

Parameter Comparison

Engineering Selection Recommendations

All four parts maintain active product status and ROHS3 compliance, qualifying them for equivalent substitution in applications meeting the specified electrical parameters. The WHD15RFET and WND15RFET are dimensionally identical Ohmite products with identical operating temperature ranges (-55°C ~ 150°C), differing only in series designation and non-inductive characteristics of the WND15RFET variant. The 43F15RE offers bulk packaging and slightly larger physical dimensions while maintaining identical electrical specifications. The RS02B15R00FE70 from Vishay Dale provides an extended operating temperature range (-65°C ~ 250°C) and moisture-resistant construction, suitable for applications requiring enhanced thermal or environmental performance. Physical dimension variations are acceptable for standard through-hole PCB layouts with standard hole spacing tolerances.

Frequently Asked Questions (FAQ)

Q: Can WND15RFET replace WHD15RFET in all applications? A: Yes. Both parts are Ohmite wirewound axial resistors with identical resistance (15 Ohms), tolerance (±1%), power rating (3W), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C ~ 150°C). The WND15RFET includes non-inductive construction, which is beneficial in high-frequency applications but does not prevent substitution in standard circuits.

Q: What is the difference between packaging formats (Tape & Reel, Cut Tape, Bulk)? A: Packaging format affects procurement and assembly processes only. Tape & Reel (TR) is optimized for automated pick-and-place assembly. Cut Tape (CT) is suitable for manual assembly or smaller production runs. Bulk packaging is used for manual assembly and inventory management. All formats contain electrically identical components.

Q: Is the 43F15RE suitable as a direct replacement? A: Yes, electrically. The 43F15RE maintains all critical electrical parameters (15 Ohms ±1%, 3W, ±20ppm/°C). Physical dimensions are slightly larger (0.220" Dia x 0.594" L versus 0.217" Dia x 0.533" L), which may require PCB layout verification for space-constrained applications.

Q: When should RS02B15R00FE70 be selected over Ohmite alternatives? A: The RS02B15R00FE70 is selected when applications require extended operating temperature range (-65°C ~ 250°C versus -55°C ~ 150°C) or moisture-resistant construction. All other electrical parameters remain equivalent.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed parts (WHD15RFET, 43F15RE, WND15RFET, RS02B15R00FE70) are ROHS3 compliant and REACH unaffected.

Q: Do physical dimension differences affect PCB compatibility? A: Standard through-hole PCB designs accommodate the minor dimensional variations between these parts. The largest dimension difference is 0.061" in length (43F15RE at 0.594" L). Verification is recommended only for space-constrained layouts with tight component spacing.