HS50 R33 J Wirewound Chassis Mount Resistor - Equivalent & Substitute Parts

Part Overview

The HS50 R33 J is a 330 mOhms ±5% 50W wirewound chassis mount resistor manufactured by Ohmite, part of the ARCOL HS series. This component is designed for high-power applications requiring precision current sensing and load dissipation in industrial and power electronics circuits. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility allow direct replacement in circuit applications.

Substiute Parts

HS50 R33 J

OhmiteIn Stock: 738HS50 R33 J Datasheet

Current PartRFQ

HS25 R33 J

OhmiteIn Stock: 1054HS25 R33 J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HS25 R33 J qualifies as a parametric equivalent based on the following matching criteria:

• Identical resistance value: 330 mOhms
• Identical tolerance: ±5%
• Identical composition: Wirewound
• Identical temperature coefficient: ±100ppm/°C
• Identical housing type: Aluminum with flanges
• Identical lead style: Solder lugs
• Identical RoHS and REACH compliance status

The primary distinction is the power rating differential: HS25 R33 J is rated at 25W versus the 50W rating of the HS50 R33 J. This substitution is valid only in applications where the thermal dissipation requirement does not exceed 25W.

Parameter Comparison

Engineering Selection Recommendations

Both the HS50 R33 J and HS25 R33 J maintain Active product status with full ROHS3 compliance and REACH unaffected certification, ensuring regulatory compliance for current and future applications. Selection between these parts is determined by thermal dissipation requirements:

• Select HS50 R33 J for applications requiring continuous power dissipation up to 50W
• Select HS25 R33 J for applications with thermal dissipation not exceeding 25W

The HS25 R33 J offers a more compact form factor (27.30mm length versus 49.10mm) while maintaining identical electrical characteristics and mounting compatibility. Both parts share identical width and height dimensions, allowing mechanical interchangeability in flanged mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can HS25 R33 J replace HS50 R33 J in all applications?

A: No. The HS25 R33 J is suitable only for applications where actual power dissipation does not exceed 25W. Exceeding this thermal limit will degrade component reliability and performance.

Q: Are the electrical characteristics identical between these parts?

A: Yes. Both parts provide 330 mOhms ±5% resistance with ±100ppm/°C temperature coefficient. Electrical performance is equivalent within specified tolerances.

Q: Do these parts have identical mounting dimensions?

A: The width (0.559") and height (0.583") are identical, ensuring mechanical compatibility with flanged mounting systems. The HS25 R33 J is shorter in length (27.30mm versus 49.10mm), which may affect board layout considerations.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both HS50 R33 J and HS25 R33 J are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial and commercial applications.

Q: What is the primary design difference between these parts?

A: The primary difference is power rating and physical length. The HS50 R33 J accommodates higher thermal dissipation through increased component volume, while the HS25 R33 J provides a more compact solution for lower-power applications.