HS150 3R3 J Wirewound Chassis Mount Resistor - Equivalent & Substitute Parts

Part Overview

The HS150 3R3 J is a 3.3 Ohm, 150W wirewound chassis mount resistor manufactured by Ohmite in the ARCOL HS series. This component is designed for high-power applications requiring stable resistance performance with aluminum housing and flanged mounting. The part is currently active in production with 943 units in stock. Substitute parts may be required due to application-specific power requirements, availability constraints, or design modifications that permit operation at reduced power ratings.

Substiute Parts

HS150 3R3 J

OhmiteIn Stock: 1029HS150 3R3 J Datasheet

Current PartRFQ

HS100 3R3 J

ARCOLIn Stock: 2304HS100 3R3 J Datasheet

Parametric EquivalentRFQ

HS100 3R3 J

ARCOLIn Stock: 2304HS100 3R3 J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HS100 3R3 J qualifies as a parametric equivalent based on the following criteria:

Matching Parameters:

• Resistance value: 3.3 Ohms (identical)
• Tolerance: ±5% (identical)
• Temperature Coefficient: ±100ppm/°C (identical)
• Composition: Wirewound (identical)
• Housing Type: Aluminum (identical)
• Mounting Feature: Flanges (identical)
• Lead Style: Solder Lugs (identical)
• Package Type: Axial, Box (identical)

Differing Parameter:

• Power Rating: 100W (versus 150W for main part)

The HS100 3R3 J is suitable for applications where the 150W power rating of the main part exceeds design requirements. This substitute maintains electrical and mechanical compatibility while providing a lower power specification.

Parameter Comparison

Engineering Selection Recommendations

Both the HS150 3R3 J and HS100 3R3 J are active products with current manufacturing status. The HS150 3R3 J maintains ROHS3 compliance, while the HS100 3R3 J meets RoHS compliance requirements. Selection between these parts depends on the actual power dissipation requirements of the application. The HS100 3R3 J is suitable for circuits where power dissipation does not exceed 100W. Physical dimensions differ between the two parts; the HS100 3R3 J is more compact, which may influence PCB layout and thermal management considerations.

Frequently Asked Questions (FAQ)

Q: Can the HS100 3R3 J replace the HS150 3R3 J in all applications?

A: The HS100 3R3 J can replace the HS150 3R3 J only in applications where the actual power dissipation does not exceed 100W. The electrical characteristics (resistance, tolerance, temperature coefficient) are identical, ensuring functional compatibility at lower power levels.

Q: What are the physical differences between these parts?

A: The HS150 3R3 J measures 3.846" L x 1.075" W (97.70mm x 27.30mm), while the HS100 3R3 J measures 2.567" L x 1.870" W (65.20mm x 47.50mm). Both maintain the same seated height of 0.949" (24.10mm). The HS100 3R3 J is more compact in length and width.

Q: Are there compliance differences between these parts?

A: The HS150 3R3 J is ROHS3 compliant, while the HS100 3R3 J is RoHS compliant. Both meet environmental regulatory requirements for their respective specifications.

Q: What is the mounting compatibility between these parts?

A: Both parts feature identical mounting characteristics: aluminum housing, flanged mounting features, and solder lug lead style. They are mechanically compatible for applications designed to accept either power rating.

Q: How do I determine which part is suitable for my application?

A: Calculate the expected power dissipation in your circuit using P = I²R. If this value does not exceed 100W, the HS100 3R3 J is suitable. If power dissipation exceeds 100W, the HS150 3R3 J is required.