HS25 18R J Equivalent & Substitute Parts

Part Overview

The HS25 18R J is an 18 Ohms ±5% 25W wirewound chassis mount resistor manufactured by Ohmite in the ARCOL HS series. This component is designed for applications requiring precision power dissipation with aluminum housing and flanged mounting. The part is currently active in production with 1022 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

HS25 18R J

OhmiteIn Stock: 1121HS25 18R J Datasheet

Current PartRFQ

HS25 18R J

ARCOLIn Stock: 783HS25 18R J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HS25 18R J is determined by strict equivalence across the following critical parameters:

• Resistance value: 18 Ohms
• Tolerance: ±5%
• Power rating: 25W
• Composition: Wirewound
• Temperature coefficient: ±100ppm/°C
• Housing material: Aluminum
• Mounting configuration: Flanges with solder lugs
• Package classification: Axial, Box

The identified substitute part maintains all core electrical and mechanical specifications required for direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Ohmite HS25 18R J and ARCOL HS25 18R J are active production components with full RoHS compliance. The Ohmite variant carries ROHS3 certification with REACH Unaffected status. The ARCOL variant is RoHS Compliant with Vendor Undefined REACH status. Selection between these parts should be based on supply availability, procurement lead times, and organizational compliance requirements. The ARCOL part includes pulse withstanding capability as an additional feature. Both components are classified under ECCN EAR99 for export control purposes.

Frequently Asked Questions (FAQ)

Q: Can the ARCOL HS25 18R J directly replace the Ohmite HS25 18R J?

A: Yes. Both parts share identical electrical specifications (18 Ohms ±5%, 25W, ±100ppm/°C) and mechanical dimensions (1.075" L x 0.583" H seated). The aluminum housing, flanged mounting, and solder lug lead style are identical across both variants.

Q: What is the difference in width between the two parts?

A: The Ohmite variant specifies 0.559" W (14.20mm), while the ARCOL variant specifies 1.102" W (28.00mm). This dimensional difference does not affect electrical equivalence but may impact board layout considerations in space-constrained applications.

Q: Are there compliance differences between the two parts?

A: The Ohmite part is ROHS3 Compliant with REACH Unaffected status. The ARCOL part is RoHS Compliant with Vendor Undefined REACH status. Both carry EAR99 export classification. Compliance selection depends on end-use application and regional regulatory requirements.

Q: What additional feature does the ARCOL variant provide?

A: The ARCOL HS25 18R J includes pulse withstanding capability, which may provide enhanced performance in applications subject to transient voltage or current pulses.

Q: Are inventory levels a consideration for part selection?

A: The Ohmite variant has 1022 units in stock, while the ARCOL variant has 697 units in stock. Procurement decisions should account for project timeline and supply chain requirements.