HS50 2R2 F Equivalent & Substitute Parts

Part Overview

The HS50 2R2 F is a 50-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 2.2 ohms with ±1% tolerance. This component is designed for high-power applications requiring reliable pulse withstanding capability and thermal stability. The part maintains active product status with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility can be maintained across the product line.

Substiute Parts

HS50 2R2 F

OhmiteIn Stock: 711HS50 2R2 F Datasheet

Current PartRFQ

HS25 2R2 F

OhmiteIn Stock: 1146HS25 2R2 F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HS25 2R2 F is identified as a parametric equivalent based on the following criteria:

Matching Parameters:

• Resistance value: 2.2 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 active products)

Differing Parameter:

• Power Rating: 25W (versus 50W for main part)

The HS25 2R2 F functions as a substitute only in applications where the 25-watt thermal capacity is sufficient. This part maintains all electrical and mechanical compatibility parameters while reducing power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

Both the HS50 2R2 F and HS25 2R2 F maintain active product status with current RoHS compliance certifications. Selection between these parts is determined by thermal load requirements:

• HS50 2R2 F is specified for applications requiring 50-watt continuous power dissipation capability.
• HS25 2R2 F is suitable for applications with maximum continuous power dissipation of 25 watts.

The HS25 2R2 F offers a smaller physical footprint (27.30mm × 14.20mm versus 49.10mm × 28.00mm) while maintaining identical electrical specifications and mechanical mounting compatibility. Both parts are RoHS compliant and maintain equivalent temperature stability characteristics.

Frequently Asked Questions (FAQ)

Q: Can the HS25 2R2 F replace the HS50 2R2 F in all applications?

A: No. The HS25 2R2 F is suitable only for applications where continuous power dissipation does not exceed 25 watts. Applications requiring the full 50-watt thermal capacity must use the HS50 2R2 F.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts provide 2.2 ohms at ±1% tolerance with 100ppm/°C temperature coefficient. Electrical performance is equivalent.

Q: What are the physical dimension differences?

A: The HS50 2R2 F measures 49.10mm × 28.00mm, while the HS25 2R2 F measures 27.30mm × 14.20mm. Both maintain the same seated height of 14.80mm. Board layout space availability may influence part selection.

Q: Are both parts RoHS compliant?

A: Yes. The HS50 2R2 F is RoHS Compliant, and the HS25 2R2 F is ROHS3 Compliant. 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 connections, ensuring mechanical compatibility in equivalent circuit board designs.