HS150 2R F Equivalent & Substitute Parts

Part Overview

The HS150 2R F is a 150-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 2 ohms with ±1% tolerance. This component is designed for high-power applications requiring pulse withstanding capability and thermal stability. The part is currently in active production status with full RoHS compliance. Substitute parts become necessary when inventory constraints, lead time requirements, or specific packaging preferences necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

HS150 2R F

OhmiteIn Stock: 1191HS150 2R F Datasheet

Current PartRFQ

HS100 2R F

OhmiteIn Stock: 1179HS100 2R F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HS100 2R F qualifies as a parametric equivalent based on the following criteria:

Matching Parameters:

• Resistance value: 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 parts)

Differing Parameter:

• Power Rating: HS100 2R F is rated at 100W versus 150W for the HS150 2R F

The HS100 2R F represents a lower power variant within the same product series. Substitution is valid only in applications where the 100W power rating is sufficient for the circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the HS150 2R F and HS100 2R F are active production components with current regulatory compliance. The HS150 2R F is the primary specification for applications requiring 150-watt dissipation capability. The HS100 2R F serves as a substitute only when circuit power requirements do not exceed 100 watts and when the reduced physical footprint (65.20mm length versus 97.70mm) is compatible with board layout constraints. Both parts maintain identical mounting interfaces and electrical characteristics except for power rating, ensuring mechanical and thermal compatibility within their respective power envelopes.

Frequently Asked Questions (FAQ)

Q: Can the HS100 2R F replace the HS150 2R F in all applications?

A: No. The HS100 2R F is suitable only for applications where the maximum continuous power dissipation does not exceed 100 watts. Applications requiring the full 150-watt capability must use the HS150 2R F.

Q: Are the physical dimensions compatible between these parts?

A: The height-seated dimension is identical at 0.949" (24.10mm). However, the HS100 2R F is significantly smaller in length (2.566" versus 3.846") and width (1.075" versus 1.870"). Board layout must accommodate the HS150 2R F dimensions if that part is specified.

Q: Do both parts have the same mounting interface?

A: Yes. Both parts feature aluminum housing with flanged mounting and solder lug leads, ensuring identical mounting compatibility.

Q: What is the difference in RoHS compliance between these parts?

A: The HS150 2R F carries RoHS Compliant status, while the HS100 2R F carries ROHS3 Compliant status. Both meet current regulatory requirements for restricted substances.

Q: Are the electrical characteristics identical?

A: The resistance value (2 ohms), tolerance (±1%), composition (wirewound), and temperature coefficient (100ppm/°C) are identical. The only electrical difference is the power rating: 150W versus 100W.