WHB750FET Equivalent & Substitute Parts

Part Overview

The WHB750FET is a 750 Ohms ±1% 1W through-hole resistor manufactured by Ohmite in axial wirewound composition. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set, enabling procurement flexibility and supply chain continuity.

Substiute Parts

WHB750FET

OhmiteIn Stock: 921WHB750FET Datasheet

Current PartRFQ

WNB750FET

OhmiteIn Stock: 2426WNB750FET Datasheet

Parametric EquivalentRFQ

WHB750FE

OhmiteIn Stock: 949WHB750FE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: resistance value (750 Ohms), tolerance (±1%), power rating (1W), composition (wirewound), temperature coefficient (±20ppm/°C), operating temperature range (-55°C ~ 150°C), package type (axial), and physical dimensions (0.130" Dia x 0.276" L). Packaging format (Tape & Reel, Cut Tape, or Bulk) does not affect electrical or mechanical compatibility and represents a procurement variable only. The WNB750FET introduces a non-inductive feature within the wirewound composition; this feature addition does not violate substitution criteria as it represents an enhancement to the base specification. The WHB750FE maintains identical electrical and mechanical specifications with a different packaging format.

Parameter Comparison

Engineering Selection Recommendations

All three parts—WHB750FET, WNB750FET, and WHB750FE—maintain Active product status and ROHS3 compliance. Selection between these parts is determined by packaging format requirements and application-specific needs. The WHB750FET in Tape & Reel format is suitable for automated assembly processes. The WNB750FET in Cut Tape format with non-inductive construction is applicable where inductive effects must be minimized. The WHB750FE in Bulk packaging accommodates manual assembly or lower-volume procurement scenarios. All three parts are electrically and mechanically interchangeable within circuits designed for 750 Ohms ±1% 1W axial wirewound resistors operating across -55°C to 150°C.

Frequently Asked Questions (FAQ)

Q: Can WHB750FET be replaced with WNB750FET? A: Yes. Both parts share identical electrical specifications (750 Ohms ±1%, 1W, ±20ppm/°C, -55°C ~ 150°C operating range) and mechanical dimensions (0.130" Dia x 0.276" L). The WNB750FET adds non-inductive construction, which does not prevent substitution. The difference is packaging format: Tape & Reel versus Cut Tape.

Q: What is the difference between WHB750FET and WHB750FE? A: These parts are electrically and mechanically identical. The sole difference is packaging: WHB750FET is supplied in Tape & Reel format, while WHB750FE is supplied in Bulk format. Both are wirewound axial resistors with 750 Ohms ±1% at 1W.

Q: Is the non-inductive feature of WNB750FET a compatibility concern? A: No. Non-inductive construction is a feature enhancement that reduces parasitic inductance. It does not alter the core electrical parameters (resistance, tolerance, power rating, temperature coefficient) and maintains full mechanical compatibility with standard wirewound designs.

Q: Are all three parts suitable for the same circuit applications? A: Yes, provided the application circuit is designed for 750 Ohms ±1% 1W axial wirewound resistors. Selection among the three parts depends on assembly process requirements (automated versus manual) and packaging availability, not on electrical performance differences.

Q: Do packaging format differences affect electrical performance? A: No. Tape & Reel, Cut Tape, and Bulk formats are procurement and handling specifications only. They do not affect the electrical or thermal characteristics of the resistor component itself.