HS10 250R F Equivalent & Substitute Parts

Part Overview

The HS10 250R F is a 10-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 250 ohms with ±1% tolerance. This component is designed for applications requiring high power dissipation in a compact aluminum-housed form factor with flanged mounting. The part is currently active in production with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified based on matching electrical specifications (resistance value and tolerance) and mechanical compatibility (housing type, mounting features, and physical dimensions).

Substiute Parts

HS10 250R F

OhmiteIn Stock: 1120HS10 250R F Datasheet

Current PartRFQ

805F250E

ARCOLIn Stock: 728805F250E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HS10 250R F are identified based on the following critical parameters:

• Electrical Match: Resistance value of 250 ohms and tolerance of ±1%
• Composition: Wirewound construction
• Housing: Aluminum chassis mount with flanged mounting feature
• Physical Compatibility: Matching or compatible dimensions (0.626" L x 0.650" W, height 0.346" max)
• Lead Configuration: Solder lugs for direct board mounting
• Compliance: RoHS compliant status

The ARCOL 805F250E meets these core substitution criteria. However, the power rating differs: the substitute is rated at 5W compared to the main part's 10W rating. This difference must be evaluated based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the HS10 250R F and 805F250E are active production components with full RoHS compliance and identical moisture sensitivity ratings. The parts share identical physical dimensions, mounting configurations, and electrical resistance specifications.

The primary distinction is the power dissipation rating: the HS10 250R F is rated for 10W continuous operation, while the 805F250E is rated for 5W. Selection between these parts depends on the actual power dissipation requirements of the application. If the circuit dissipates 5W or less across the 250-ohm resistor, the 805F250E is electrically and mechanically compatible. If the circuit requires 10W dissipation capability, the HS10 250R F must be used.

The ARCOL 805F250E exhibits superior temperature stability (±20ppm/°C versus 100ppm/°C), which may provide performance advantages in temperature-sensitive applications operating within the 5W power envelope.

Frequently Asked Questions (FAQ)

Q: Can the ARCOL 805F250E directly replace the Ohmite HS10 250R F?

A: Direct replacement is possible only if the application dissipates 5W or less. The parts are mechanically identical and electrically equivalent at 250 ohms ±1%. If the circuit requires the full 10W rating, substitution is not appropriate.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts measure 0.626" L x 0.650" W (15.90mm x 16.50mm) with a maximum seated height of 0.346" (8.80mm). Mounting footprints and solder lug configurations are identical.

Q: What is the significance of the temperature coefficient difference?

A: The ARCOL 805F250E has a temperature coefficient of ±20ppm/°C compared to the Ohmite HS10 250R F at 100ppm/°C. This means the ARCOL part exhibits smaller resistance changes across temperature variations, which is beneficial for precision applications. This advantage applies only within the 5W power rating limit.

Q: Are both parts RoHS compliant?

A: Yes. Both the HS10 250R F and 805F250E are RoHS compliant with unlimited moisture sensitivity (MSL 1).

Q: What packaging options are available?

A: The HS10 250R F is supplied in box packaging. The 805F250E is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.