83F7R5 Equivalent & Substitute Parts

Part Overview

The Ohmite 83F7R5 is a 7.5 Ohm ±1% 3W axial wirewound through-hole resistor from the Acrasil® 80 series. This component is currently active in production and maintains 1126 units in new original stock. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to support procurement flexibility and supply chain continuity.

Substiute Parts

83F7R5

OhmiteIn Stock: 117183F7R5 Datasheet

Current PartRFQ

RS02B7R500FS70

Vishay DaleIn Stock: 1762RS02B7R500FS70 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 83F7R5 are qualified based on the following critical parameters:

• Resistance value: 7.5 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 3W (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Termination count: 2 (exact match required)

The Vishay Dale RS02B7R500FS70 meets all critical electrical and mechanical parameters and qualifies as a direct substitute. Physical dimensions vary slightly but remain compatible with standard axial component footprints.

Parameter Comparison

Engineering Selection Recommendations

Both the 83F7R5 and RS02B7R500FS70 are active production components with identical electrical specifications. The Vishay Dale RS02B7R500FS70 includes moisture-resistant construction and operates across a specified temperature range of -65°C to 250°C. Both components are RoHS non-compliant and carry EAR99 export classification. Selection between these parts should be based on availability, packaging format (the Vishay Dale part is supplied in Cut Tape format), and specific application environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the RS02B7R500FS70 be used as a direct replacement for the 83F7R5?

A: Yes. Both components share identical resistance value (7.5 Ohms), tolerance (±1%), power rating (3W), composition (wirewound), temperature coefficient (±50ppm/°C), and axial package configuration. Physical dimensions differ slightly but remain compatible with standard through-hole PCB layouts.

Q: What is the difference in physical size between these parts?

A: The 83F7R5 measures 0.217" diameter × 0.594" length (5.50mm × 15.10mm). The RS02B7R500FS70 measures 0.187" diameter × 0.560" length (4.75mm × 14.22mm). Both fit standard axial component spacing on PCBs.

Q: Are there compliance differences between these parts?

A: Both components are RoHS non-compliant and REACH unaffected or affected respectively. Both carry EAR99 export classification and share the same HTSUS code (8533.21.0080).

Q: What additional features does the RS02B7R500FS70 provide?

A: The Vishay Dale RS02B7R500FS70 includes moisture-resistant construction and specifies an operating temperature range of -65°C to 250°C, compared to the 83F7R5 which does not provide an operating temperature specification.

Q: How should packaging format affect component selection?

A: The RS02B7R500FS70 is supplied in Cut Tape (CT) packaging. Verify that your assembly process and component handling equipment are compatible with this packaging format before selection.