HS25 1K5 J Equivalent & Substitute Parts

Part Overview

The HS25 1K5 J is a 25-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 1.5 kOhms with ±5% tolerance. This component is designed for high-power applications requiring reliable pulse withstanding capability and thermal stability. The part is currently active in production with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when inventory constraints, lead time requirements, or specific tolerance specifications necessitate alternative sourcing while maintaining functional equivalence.

Substiute Parts

HS25 1K5 J

OhmiteIn Stock: 1194HS25 1K5 J Datasheet

Current PartRFQ

825F1K5E

ARCOLIn Stock: 821825F1K5E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HS25 1K5 J is determined by the following critical parameters:

• Resistance Value: Must be 1.5 kOhms
• Power Rating: Must be 25W minimum
• Composition: Must be wirewound construction
• Physical Dimensions: Must match 1.075" L x 1.102" W x 0.583" H to ensure mechanical compatibility with flanged mounting
• Lead Configuration: Must feature solder lugs for direct connection compatibility
• Housing Material: Must be aluminum for thermal performance equivalence
• RoHS Compliance: Must maintain RoHS compliant status

The ARCOL 825F1K5E meets all substitution criteria. While it features improved tolerance (±1% versus ±5%) and comparable temperature coefficient performance (±20ppm/°C), these represent enhanced specifications that do not compromise functional compatibility. Identical physical dimensions and mounting characteristics ensure direct mechanical and electrical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the HS25 1K5 J and 825F1K5E are active production components with full RoHS compliance and identical moisture sensitivity ratings. Selection between these parts should be based on:

HS25 1K5 J (Ohmite): Primary selection when standard ±5% tolerance meets circuit requirements and Ohmite supply chain preference is established.

825F1K5E (ARCOL): Suitable alternative when tighter tolerance specification (±1%) provides design margin benefit or when ARCOL inventory availability offers lead time advantage. The improved tolerance does not introduce incompatibility and represents an enhanced specification for the same application.

Both components maintain identical physical form factor, mounting configuration, and thermal characteristics, ensuring direct substitution without circuit board redesign or mechanical modification.

Frequently Asked Questions (FAQ)

Q: Can the ARCOL 825F1K5E directly replace the Ohmite HS25 1K5 J without circuit board modification?

A: Yes. Both components share identical physical dimensions (1.075" L x 1.102" W x 0.583" H), flanged mounting configuration, and solder lug lead style. Direct mechanical and electrical substitution is possible without PCB redesign.

Q: What is the tolerance difference between these parts, and does it affect circuit performance?

A: The HS25 1K5 J carries ±5% tolerance, while the 825F1K5E carries ±1% tolerance. The substitute part offers tighter tolerance, which provides improved resistance value accuracy. This represents an enhanced specification and does not compromise compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the HS25 1K5 J and 825F1K5E are RoHS compliant with MSL rating 1 (unlimited moisture sensitivity), meeting current environmental and regulatory requirements.

Q: What is the temperature coefficient difference?

A: The HS25 1K5 J specifies 25ppm/°C, while the 825F1K5E specifies ±20ppm/°C. Both values indicate stable temperature performance suitable for high-power applications. The substitute part's specification is comparable and does not introduce thermal instability.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. Identical resistance value (1.5 kOhms), power rating (25W), composition (wirewound), housing material (aluminum), and physical dimensions ensure functional and mechanical interchangeability. No design changes are required.