HS100 4R7 F Equivalent & Substitute Parts

Part Overview

The HS100 4R7 F is a 100W wirewound chassis mount resistor manufactured by Ohmite, rated at 4.7 Ohms with ±1% tolerance. This component is designed for high-power applications requiring reliable pulse withstanding capability and thermal stability. The part maintains Active product status with full RoHS compliance and unlimited moisture sensitivity rating (MSL 1). 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

HS100 4R7 F

OhmiteIn Stock: 1095HS100 4R7 F Datasheet

Current PartRFQ

HS75 4R7 F

ARCOLIn Stock: 1145HS75 4R7 F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the HS100 4R7 F is determined by strict equivalence in the following parameters:

• Resistance Value: Must be 4.7 Ohms (no tolerance variation permitted)
• Tolerance: Must be ±1% (matching precision requirement)
• Composition: Must be Wirewound (technology requirement)
• Housing Type: Must be Aluminum (thermal and mechanical requirement)
• Mounting Feature: Must include Flanges (mechanical compatibility)
• Lead Style: Must be Solder Lugs (connection compatibility)
• RoHS Compliance: Must be RoHS Compliant (regulatory requirement)

The HS75 4R7 F qualifies as a parametric equivalent substitute. While the power rating differs (75W versus 100W), this part maintains all critical electrical and mechanical parameters. The reduced power rating represents a derating scenario and is applicable only when circuit requirements do not exceed 75W continuous operation.

Parameter Comparison

Engineering Selection Recommendations

Selection between HS100 4R7 F and HS75 4R7 F is determined by circuit power dissipation requirements:

HS100 4R7 F (Primary Selection): Use when circuit design requires continuous power dissipation up to 100W. Both Ohmite and ARCOL manufacturers maintain Active product status with full RoHS compliance and unlimited MSL rating, ensuring long-term availability and regulatory compliance.

HS75 4R7 F (Substitute Selection): Use only when circuit power dissipation does not exceed 75W continuous operation. This part maintains electrical equivalence and mechanical compatibility while providing cost or availability advantages. Both parts carry identical compliance certifications (RoHS, ECCN EAR99, HTSUS 8533.29.0000).

Both parts are suitable for applications requiring pulse withstanding capability and are packaged in aluminum housings with flanged mounting and solder lug terminations.

Frequently Asked Questions (FAQ)

Q: Can HS75 4R7 F replace HS100 4R7 F in all applications?

A: No. The HS75 4R7 F is suitable only for applications where continuous power dissipation does not exceed 75W. If your circuit requires the full 100W rating, the HS100 4R7 F must be used.

Q: Are the physical dimensions compatible between these parts?

A: Both parts use aluminum housing with flanged mounting and solder lug leads. The HS75 4R7 F has reduced overall dimensions (1.917" L x 1.075" W versus 2.567" L x 1.870" W), but both maintain the same height when seated (0.949"). Verify PCB layout clearance before substitution.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both HS100 4R7 F and HS75 4R7 F are RoHS Compliant with identical ECCN (EAR99) and HTSUS (8533.29.0000) classifications. Both carry MSL 1 (Unlimited) moisture sensitivity rating.

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

A: HS100 4R7 F specifies 100ppm/°C while HS75 4R7 F specifies ±100ppm/°C. Both values are equivalent for practical circuit design purposes and do not affect substitution eligibility.

Q: Are there inventory considerations for these parts?

A: Both parts are listed as Active with new original stock available (HS100 4R7 F: 1029 Pcs; HS75 4R7 F: 1066 Pcs). Verify current availability with your supplier before design finalization.