HS50 56R F Equivalent & Substitute Parts

Part Overview

The HS50 56R F is a 50-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 56 ohms with ±1% tolerance. This component is designed for high-power applications requiring reliable pulse withstanding capability and thermal stability. The part is currently in active production status with full RoHS compliance. Substitute parts become necessary when application constraints such as space limitations, thermal management requirements, or inventory availability necessitate alternative configurations while maintaining core electrical specifications.

Substiute Parts

HS50 56R F

OhmiteIn Stock: 1123HS50 56R F Datasheet

Current PartRFQ

HS25 56R F

OhmiteIn Stock: 1148HS25 56R F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HS25 56R F qualifies as a parametric equivalent based on the following matching criteria:

• Resistance value: 56 Ohms (identical)
• Tolerance: ±1% (identical)
• Composition: Wirewound (identical)
• Temperature Coefficient: ±100ppm/°C (equivalent)
• Housing Type: Aluminum (identical)
• Mounting Feature: Flanges (identical)
• Lead Style: Solder Lugs (identical)
• Regulatory Compliance: RoHS compliant (both versions)

The primary distinction is power rating: the HS25 56R F is rated at 25W versus the 50W rating of the main part. This substitution is valid only in applications where the thermal load does not exceed 25 watts continuous operation.

Parameter Comparison

Engineering Selection Recommendations

Both the HS50 56R F and HS25 56R F maintain active production status with current regulatory compliance. The HS50 56R F is the primary selection for applications requiring continuous power dissipation up to 50 watts. The HS25 56R F is suitable for applications with thermal loads not exceeding 25 watts continuous operation, offering a more compact footprint (approximately 44% reduction in length and 49% reduction in width) while maintaining identical electrical specifications and mounting compatibility. Both parts carry equivalent RoHS certifications appropriate for their respective production timelines.

Frequently Asked Questions (FAQ)

Q: Can the HS25 56R F replace the HS50 56R F in all applications?

A: No. The HS25 56R F is limited to applications where continuous power dissipation does not exceed 25 watts. Exceeding this thermal limit will degrade component reliability and performance.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts provide 56 ohms ±1% resistance with wirewound composition and equivalent temperature coefficients. Electrical performance is identical within the power rating constraints of each part.

Q: What are the physical differences?

A: The HS25 56R F is significantly smaller in length (1.075" vs 1.933") and width (0.559" vs 1.102"), while maintaining the same seated height of 0.583". This makes the HS25 56R F suitable for space-constrained applications.

Q: Are both parts RoHS compliant?

A: Yes. The HS50 56R F carries RoHS compliance certification, and the HS25 56R F carries ROHS3 compliance certification. Both meet current regulatory requirements.

Q: Do these parts use the same mounting method?

A: Yes. Both parts feature aluminum housing with flanged mounting and solder lug leads, ensuring mechanical and electrical compatibility in chassis mount applications.