WHAR75FE Equivalent & Substitute Parts

Part Overview

The WHAR75FE is a 750 mOhms ±1% 0.5W through-hole resistor manufactured by Ohmite in the WH series. This axial wirewound resistor is designed for applications requiring precision low-resistance values with stable performance across industrial temperature ranges. The part is currently active in production with ROHS3 compliance and maintains substantial inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary packaging configuration is unavailable or when alternative inventory levels are required.

Substiute Parts

WHAR75FE

OhmiteIn Stock: 1082WHAR75FE Datasheet

Current PartRFQ

WHAR75FET

OhmiteIn Stock: 22617WHAR75FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WHAR75FE is determined by matching the following critical parameters:

• Resistance value: 750 mOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Composition: Wirewound
• Temperature coefficient: ±90ppm/°C
• Operating temperature range: -55°C to 150°C
• Package type: Axial
• Physical dimensions: 0.100" Dia x 0.200" L (2.54mm x 5.08mm)
• Termination count: 2
• Compliance: ROHS3 Compliant

The WHAR75FET is classified as a direct manufacturer substitute. It maintains identical electrical specifications and physical characteristics as the WHAR75FE. The primary distinction is packaging configuration: WHAR75FET is supplied in Cut Tape (CT) format, whereas WHAR75FE uses standard packaging. Both parts are manufactured by Ohmite within the WH series and carry active product status.

Parameter Comparison

Engineering Selection Recommendations

Both WHAR75FE and WHAR75FET are suitable for applications requiring 750 mOhms ±1% precision wirewound resistors with 0.5W power dissipation capability. Selection between these parts should be based on packaging and inventory requirements:

WHAR75FE is appropriate for standard procurement workflows and applications where conventional packaging is specified. Current inventory of 993 pieces supports immediate availability for moderate-volume requirements.

WHAR75FET is appropriate for automated assembly processes utilizing cut tape packaging and high-volume production runs. Current inventory of 22,591 pieces provides extended availability for large-scale deployments.

Both parts maintain identical electrical performance, mechanical compatibility, and regulatory compliance. The choice between them does not affect circuit functionality or thermal performance. Selection should be driven by assembly process requirements and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can WHAR75FET be used as a direct replacement for WHAR75FE in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. WHAR75FET uses cut tape packaging while WHAR75FE uses standard packaging. Circuit performance, thermal characteristics, and compliance certifications are identical.

Q: What is the significance of the packaging difference between these parts?

A: Packaging format affects supply chain handling and assembly automation compatibility. Cut tape (CT) packaging is optimized for automated pick-and-place equipment in high-volume manufacturing. Standard packaging is suitable for manual assembly and moderate-volume applications. The resistor component itself is unchanged.

Q: Are both parts ROHS3 compliant?

A: Yes. Both WHAR75FE and WHAR75FET carry ROHS3 compliance certification and are REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What determines substitution eligibility for this resistor?

A: Substitution is valid when all electrical parameters match: resistance value (750 mOhms), tolerance (±1%), power rating (0.5W), temperature coefficient (±90ppm/°C), and operating temperature range (-55°C to 150°C). Physical dimensions and package type must also be compatible with the application's mechanical constraints.

Q: Which part should be selected for high-volume production?

A: WHAR75FET is recommended for high-volume production due to cut tape packaging compatibility with automated assembly equipment and significantly higher inventory availability (22,591 pieces versus 993 pieces).