HS50 150R F Equivalent & Substitute Parts

Part Overview

The HS50 150R F is a 150 Ohms ±1% 50W wirewound chassis mount resistor manufactured by Ohmite in the ARCOL HS series. This component is an active product with ROHS3 compliance and is designed for applications requiring precision resistive elements with high power dissipation capability. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement or when parametric variations are acceptable for specific application requirements.

Substiute Parts

HS50 150R F

OhmiteIn Stock: 1117HS50 150R F Datasheet

Current PartRFQ

850F150E

OhmiteIn Stock: 1215850F150E Datasheet

DirectRFQ

HS25 150R F

OhmiteIn Stock: 945HS25 150R F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HS50 150R F are classified into two categories based on electrical and mechanical compatibility:

Direct Manufacturer Equivalent (850F150E): This substitute maintains identical electrical specifications—150 Ohms ±1% at 50W power rating with wirewound composition and aluminum housing with flanged mounting. The 850F150E belongs to the Metal-Mite®89 series and offers improved temperature coefficient performance (±20ppm/°C versus ±100ppm/°C) and extended operating temperature range (-55°C to 275°C). Physical dimensions differ slightly, requiring verification of mounting space availability.

Parametric Equivalent (HS25 150R F): This substitute maintains identical resistance value, tolerance, composition, and mounting characteristics but operates at reduced power rating (25W versus 50W). The HS25 150R F is suitable only for applications where the 50W power dissipation capability is not required. This part remains within the same ARCOL HS series with matching temperature coefficient and housing specifications.

Parameter Comparison

Engineering Selection Recommendations

850F150E Selection: Choose this substitute when the application requires improved temperature stability (±20ppm/°C) and extended operating temperature range (-55°C to 275°C). Both parts maintain 50W power rating and ROHS3 compliance. Physical dimensions differ; verify that the 1.938" L x 1.156" W footprint accommodates available mounting space compared to the HS50 150R F dimensions of 1.933" L x 0.559" W.

HS25 150R F Selection: Choose this substitute only when application power dissipation requirements do not exceed 25W. This part maintains series consistency within ARCOL HS and identical temperature coefficient specifications. Reduced physical length (1.075" L) may provide space advantages in compact designs.

All three parts maintain ROHS3 compliance, active product status, and identical resistance and tolerance specifications, ensuring regulatory and functional compatibility within their respective power and thermal operating envelopes.

Frequently Asked Questions (FAQ)

Q: Can the 850F150E directly replace the HS50 150R F without circuit modification? A: Electrical specifications are identical (150 Ohms ±1% at 50W). Physical dimensions differ; mounting space must be verified. The improved temperature coefficient (±20ppm/°C) may enhance circuit performance in temperature-sensitive applications.

Q: Is the HS25 150R F suitable as a substitute in all applications? A: No. The HS25 150R F operates at 25W maximum power rating. Substitution is valid only when application power dissipation does not exceed 25W. Exceeding this rating will cause component failure.

Q: What are the key differences between the substitute parts? A: The 850F150E offers superior temperature coefficient (±20ppm/°C versus ±100ppm/°C) and extended operating temperature range. The HS25 150R F provides reduced power rating (25W) with potential space savings due to smaller physical dimensions.

Q: Are all three parts RoHS compliant? A: Yes. The HS50 150R F, 850F150E, and HS25 150R F are all ROHS3 compliant.

Q: What mounting considerations apply to these substitutes? A: All three parts feature aluminum housing with flanged mounting and solder lugs. Physical dimensions vary; the 850F150E is larger (1.938" L x 1.156" W) than the HS50 150R F (1.933" L x 0.559" W), while the HS25 150R F is smaller (1.075" L x 0.559" W). Verify mounting space availability before substitution.