HS50 2R J Equivalent & Substitute Parts

Part Overview

The HS50 2R J is a 2 Ohms ±5% 50W wirewound chassis mount resistor manufactured by Ohmite in the ARCOL HS series. This component is an active product with 778 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value and tolerance) and mechanical compatibility (mounting features, lead style, and physical dimensions). Alternative models may be required due to inventory availability, tolerance requirements, or power rating constraints in specific circuit applications.

Substiute Parts

HS50 2R J

OhmiteIn Stock: 850HS50 2R J Datasheet

Current PartRFQ

HS25 2R J

ARCOLIn Stock: 1025HS25 2R J Datasheet

Parametric EquivalentRFQ

HS50 2R F

ARCOLIn Stock: 1156HS50 2R F Datasheet

Parametric EquivalentRFQ

HS25 2R J

ARCOLIn Stock: 1025HS25 2R J Datasheet

Parametric EquivalentRFQ

HS50 2R F

ARCOLIn Stock: 1156HS50 2R F Datasheet

Parametric EquivalentRFQ

HS50 2R J

ARCOLIn Stock: 1106HS50 2R J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HS50 2R J is determined by the following critical parameters:

Primary Matching Criteria:

• Resistance value: 2 Ohms (exact match required)
• Composition: Wirewound (exact match required)
• Mounting feature: Flanges (exact match required)
• Lead style: Solder Lugs (exact match required)
• Housing type: Aluminum (exact match required)

Secondary Compatibility Criteria:

• Tolerance: ±5% or tighter (±1% is acceptable as a higher-precision substitute)
• Power rating: 50W or higher (lower power ratings such as 25W are acceptable only if circuit design permits reduced thermal margin)
• Temperature coefficient: ±100ppm/°C (consistent across all equivalents)
• Package/Case: Axial, Box (consistent across all equivalents)

All identified substitutes maintain identical resistance, composition, mounting, and lead specifications. Variations occur in tolerance grade and power dissipation capacity.

Parameter Comparison

Engineering Selection Recommendations

HS50 2R F (±1% Tolerance, 50W): This substitute provides tighter tolerance (±1% versus ±5%) while maintaining identical power rating and physical footprint length. Select this part when circuit design requires improved accuracy and tolerance stack-up control. RoHS compliance is confirmed.

HS25 2R J (±5% Tolerance, 25W): This substitute maintains tolerance specification but reduces power dissipation capacity to 25W. Select this part only when thermal analysis confirms that circuit operating conditions do not exceed 25W continuous power dissipation. Physical dimensions differ in length (27.30mm versus 49.10mm) and width (28.00mm versus 14.20mm), requiring PCB layout verification. RoHS compliance is confirmed.

HS50 2R J (ARCOL manufacture): This substitute is electrically and mechanically identical to the primary part, differing only in manufacturer designation. Select when inventory or supply chain considerations favor ARCOL sourcing. RoHS compliance is confirmed.

All substitute parts maintain wirewound composition, aluminum housing, flange mounting, and solder lug lead style. Compliance certifications (RoHS, REACH, ECCN EAR99) are consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can HS25 2R J replace HS50 2R J in all applications? A: No. The HS25 2R J is rated for 25W maximum continuous power dissipation, compared to 50W for the HS50 2R J. Substitution is valid only if circuit thermal analysis confirms operating power does not exceed 25W. Physical dimensions also differ, requiring PCB layout verification.

Q: What is the difference between HS50 2R J and HS50 2R F? A: Both parts are rated 50W with identical physical dimensions and mounting specifications. The HS50 2R F provides ±1% tolerance versus ±5% for the HS50 2R J. Select HS50 2R F when tighter tolerance is required for precision circuit design.

Q: Are all substitutes RoHS compliant? A: The primary part HS50 2R J is ROHS3 compliant. All substitute parts (HS50 2R F, HS25 2R J, and ARCOL HS50 2R J) are RoHS compliant. Compliance status is confirmed for all options.

Q: Do substitute parts require PCB layout changes? A: HS50 2R F maintains identical dimensions to the primary part. HS25 2R J has different length (27.30mm versus 49.10mm) and width (28.00mm versus 14.20mm), requiring PCB layout verification before substitution.

Q: What is the temperature coefficient specification for all parts? A: All parts in this family maintain ±100ppm/°C temperature coefficient, ensuring consistent thermal performance across the substitute group.