HS300 R68 F Equivalent & Substitute Parts

Part Overview

The HS300 R68 F is a 300-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 680 mOhms with ±1% tolerance. This component is designed for high-power applications requiring pulse withstanding capability and thermal stability. The part maintains Active product status with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility can be maintained within the allowed parameter range for this resistor category.

Substiute Parts

HS300 R68 F

OhmiteIn Stock: 893HS300 R68 F Datasheet

Current PartRFQ

HS200 R68 F

ARCOLIn Stock: 750HS200 R68 F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HS300 R68 F is determined by the following critical parameters:

• Resistance Value: Must be 680 mOhms
• Tolerance: Must be ±1%
• Composition: Must be Wirewound
• Housing Type: Must be Aluminum
• Mounting Feature: Must include Flanges
• Lead Style: Must be M6 Threaded
• RoHS Compliance: Must be RoHS Compliant

The HS200 R68 F qualifies as a parametric equivalent based on matching all core electrical and mechanical specifications. The primary distinction is the power rating differential (200W versus 300W), which represents a derating scenario where the substitute part operates at reduced power capacity within the same physical and electrical framework.

Parameter Comparison

Engineering Selection Recommendations

Both the HS300 R68 F and HS200 R68 F maintain Active product status with full RoHS compliance and identical moisture sensitivity ratings (MSL 1 - Unlimited). Selection between these parts depends on application power dissipation requirements. The HS300 R68 F is specified for applications requiring the full 300-watt capacity. The HS200 R68 F is suitable for applications where power dissipation does not exceed 200 watts. Physical footprint differences exist; the HS200 R68 F occupies reduced length and width dimensions while maintaining identical seated height. Both parts carry identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the HS200 R68 F replace the HS300 R68 F in all applications?

A: The HS200 R68 F is electrically and mechanically compatible only in applications where power dissipation does not exceed 200 watts. Applications requiring the full 300-watt capacity must use the HS300 R68 F.

Q: Are there dimensional compatibility concerns when substituting the HS200 R68 F?

A: The HS200 R68 F has reduced length (4.631" versus 5.028") and width (1.791" versus 2.854") dimensions. Seated height remains identical at 1.646". Physical space availability in the application must accommodate the smaller footprint.

Q: Do both parts have identical electrical characteristics?

A: Both parts share identical resistance (680 mOhms), tolerance (±1%), composition (Wirewound), housing type (Aluminum), mounting features (Flanges), and lead style (M6 Threaded). Temperature coefficient specifications differ slightly (100ppm/°C versus ±100ppm/°C).

Q: What is the packaging difference between these parts?

A: The HS300 R68 F is supplied in Box packaging. The HS200 R68 F is supplied in Bulk packaging.

Q: Are both parts RoHS compliant?

A: Yes, both the HS300 R68 F and HS200 R68 F are RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating.