HS25 120R J Equivalent & Substitute Parts

Part Overview

The HS25 120R J is a 120 Ohms ±5% 25W wirewound chassis mount resistor manufactured by Ohmite in the ARCOL HS series. This component is designed for applications requiring reliable power dissipation in a compact aluminum-housed form factor with flanged mounting. The part is currently active in production with 975 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and application-specific tolerance or feature requirements.

Substiute Parts

HS25 120R J

OhmiteIn Stock: 1022HS25 120R J Datasheet

Current PartRFQ

HS25 120R J

ARCOLIn Stock: 1092HS25 120R J Datasheet

Parametric EquivalentRFQ

HS25 120R F

OhmiteIn Stock: 972HS25 120R F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HS25 120R J is determined by matching the following critical parameters: resistance value (120 Ohms), power rating (25W), composition (wirewound), housing type (aluminum), mounting feature (flanges), and lead style (solder lugs). Temperature coefficient (±100ppm/°C) and package type (axial, box) must also align. Tolerance may vary within acceptable limits for the application. Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

All three parts are active products with current manufacturing status and full RoHS compliance. Selection between HS25 120R J (Ohmite) and HS25 120R J (ARCOL) is interchangeable based on identical electrical specifications and matching mechanical dimensions. The HS25 120R F (Ohmite) offers tighter tolerance (±1% versus ±5%) while maintaining identical power rating, temperature coefficient, and physical form factor. The HS25 120R F is suitable for applications requiring higher precision resistance values. The ARCOL variant exhibits a wider width dimension (1.102" versus 0.559") and includes pulse withstanding capability; dimensional compatibility with the application must be verified before selection.

Frequently Asked Questions (FAQ)

Q: Can HS25 120R F replace HS25 120R J in any application? A: Yes. The HS25 120R F is electrically and mechanically compatible. It provides superior tolerance (±1% versus ±5%), making it suitable for precision-critical circuits. Identical power rating, temperature coefficient, and physical mounting ensure direct substitution.

Q: What is the difference between the Ohmite and ARCOL versions of HS25 120R J? A: Both are electrically identical with matching resistance, tolerance, power rating, and temperature coefficient. The ARCOL variant has a wider housing width (1.102" versus 0.559") and includes pulse withstanding capability. Physical space constraints in the application must be considered.

Q: Are all substitute parts RoHS compliant? A: Yes. HS25 120R J (Ohmite) and HS25 120R F (Ohmite) are ROHS3 compliant. HS25 120R J (ARCOL) is RoHS compliant. All parts meet environmental regulatory requirements.

Q: Which part should be selected for space-constrained applications? A: HS25 120R J (Ohmite) or HS25 120R F (Ohmite) are recommended. Both maintain the narrower width dimension of 0.559" (14.20mm), compared to the ARCOL variant at 1.102" (28.00mm).

Q: What is the tolerance difference between substitute parts? A: HS25 120R J variants maintain ±5% tolerance. HS25 120R F provides ±1% tolerance. Selection depends on circuit accuracy requirements.