HS50 68R F Equivalent & Substitute Parts

Part Overview

The HS50 68R F is a 50-watt wirewound chassis mount resistor manufactured by Ohmite, rated at 68 ohms with ±1% tolerance. This component is designed for high-power applications requiring stable resistance performance across operating conditions. The part is currently in active production status with full RoHS compliance. Substitute parts become necessary when application constraints such as space limitations, thermal management requirements, or inventory availability necessitate alternative configurations while maintaining core electrical specifications.

Substiute Parts

HS50 68R F

OhmiteIn Stock: 1163HS50 68R F Datasheet

Current PartRFQ

HS25 68R F

OhmiteIn Stock: 1259HS25 68R F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HS25 68R F qualifies as a parametric equivalent based on the following shared electrical and mechanical specifications:

• Identical resistance value: 68 ohms
• Identical tolerance: ±1%
• Identical composition: Wirewound
• Identical temperature coefficient: ±100ppm/°C
• Identical housing material: Aluminum
• Identical mounting feature: Flanges
• Identical lead style: Solder Lugs
• Identical regulatory compliance: RoHS compliant

The primary distinction between these parts is the power rating differential (50W versus 25W) and physical dimensions. The HS25 68R F operates at reduced power capacity with correspondingly smaller form factor dimensions. Substitution is valid only in applications where the 25W power rating meets or exceeds the actual power dissipation requirement.

Parameter Comparison

Engineering Selection Recommendations

Both the HS50 68R F and HS25 68R F maintain active production status with current regulatory compliance certifications. The HS50 68R F is the primary specification for applications requiring 50-watt dissipation capacity. The HS25 68R F serves as a substitute only when circuit design analysis confirms that actual power dissipation does not exceed 25 watts. The HS25 68R F offers a space advantage with reduced length and width dimensions while maintaining identical height and mounting compatibility. Both parts carry equivalent RoHS compliance certifications suitable for regulated markets.

Frequently Asked Questions (FAQ)

Q: Can the HS25 68R F replace the HS50 68R F in any application?

A: The HS25 68R F is electrically equivalent only in applications where power dissipation does not exceed 25 watts. Operating the HS25 68R F beyond its 25-watt rating will result in component failure and circuit malfunction.

Q: Are the physical dimensions compatible between these parts?

A: Both parts share identical height dimensions (0.583" maximum seated height) and identical mounting flange configuration. The HS25 68R F has reduced length and width dimensions. PCB layout and thermal management design must accommodate the specific part selected.

Q: Do both parts meet current regulatory requirements?

A: Yes. The HS50 68R F carries RoHS Compliant certification. The HS25 68R F carries ROHS3 Compliant certification. Both certifications are current and suitable for regulated applications.

Q: What is the temperature coefficient difference between these parts?

A: The HS50 68R F specifies 100ppm/°C. The HS25 68R F specifies ±100ppm/°C. Both values represent equivalent temperature stability performance for wirewound resistor applications.

Q: Are there packaging differences between these parts?

A: The HS50 68R F is supplied in box packaging. The HS25 68R F is supplied in bulk packaging. Packaging selection does not affect electrical or mechanical performance.