HS150 7R5 F Equivalent & Substitute Parts

Part Overview

The HS150 7R5 F is a 150W wirewound chassis mount resistor manufactured by Ohmite, featuring 7.5 Ohms resistance with ±1% tolerance. This component is designed for high-power applications requiring pulse withstanding capability and aluminum housing construction. The part is currently in active production status with 885 pieces available in new original inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter constraints.

Substiute Parts

HS150 7R5 F

OhmiteIn Stock: 938HS150 7R5 F Datasheet

Current PartRFQ

825F7R5E

OhmiteIn Stock: 1613825F7R5E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HS150 7R5 F is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 7.5 Ohms
• Tolerance: ±1%
• Composition: Wirewound
• Housing type: Aluminum
• Mounting feature: Flanges
• Lead style: Solder Lugs

Allowable Variation Parameters:

• Power rating: May be lower if application requirements permit
• Temperature coefficient: May vary within acceptable operating range
• Physical dimensions: May differ if mechanical fit is verified
• Packaging format: May differ (Box vs. Tray)
• RoHS compliance status: Both RoHS and ROHS3 compliant parts are acceptable

The identified substitute part 825F7R5E maintains all mandatory matching parameters while differing in power rating (25W vs. 150W) and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

Selection between the HS150 7R5 F and 825F7R5E is determined by application power dissipation requirements:

HS150 7R5 F is specified for applications requiring 150W power dissipation capability. This part maintains active production status with RoHS compliance and is suitable for high-power circuit implementations.

825F7R5E is specified for applications requiring maximum 25W power dissipation. This part is also in active production with ROHS3 compliance. The reduced power rating and smaller physical dimensions make this part suitable only for lower-power applications where the 150W rating of the primary part exceeds system requirements.

Both parts are manufactured by Ohmite and maintain identical electrical specifications for resistance, tolerance, and composition. Selection must be based on verified application power dissipation levels.

Frequently Asked Questions (FAQ)

Q: Can the 825F7R5E substitute for the HS150 7R5 F in all applications?

A: No. The 825F7R5E is rated for 25W maximum power dissipation, while the HS150 7R5 F is rated for 150W. Substitution is only valid when application power dissipation does not exceed 25W.

Q: Are the physical dimensions interchangeable?

A: No. The HS150 7R5 F measures 3.846" L x 1.870" W x 0.949" H (seated), while the 825F7R5E measures 1.062" L x 1.094" W x 0.556" H (seated). Mechanical fit verification is required before substitution.

Q: Do both parts meet RoHS requirements?

A: Yes. The HS150 7R5 F is RoHS Compliant, and the 825F7R5E is ROHS3 Compliant. Both meet environmental compliance standards.

Q: What is the difference in temperature coefficient?

A: The HS150 7R5 F has a temperature coefficient of 100ppm/°C, while the 825F7R5E has ±50ppm/°C. Both coefficients are within acceptable ranges for wirewound resistor applications.

Q: Are both parts available in active production?

A: Yes. Both the HS150 7R5 F and 825F7R5E are in active production status with current inventory availability.