Equivalent & Substitute Parts for Ohmite 83FR75

Part Overview

The Ohmite 83FR75 is a 750 mOhms ±1% 3W through-hole resistor with axial wirewound construction, part of the Acrasil® 80 series. This component is designed for applications requiring precision current-sensing and power dissipation in axial package form. The part maintains active product status with 737 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set.

Substiute Parts

83FR75

OhmiteIn Stock: 76083FR75 Datasheet

Current PartRFQ

43FR75

OhmiteIn Stock: 105943FR75 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 43FR75 qualifies as a direct substitute for the 83FR75 based on the following critical parameters:

• Resistance Value: Both parts specify 750 mOhms
• Tolerance: Both maintain ±1% tolerance
• Power Rating: Both are rated for 3W dissipation
• Composition: Both utilize wirewound construction
• Package Configuration: Both employ axial through-hole packaging with 2 terminations
• Temperature Coefficient: Both exhibit ±90ppm/°C performance
• Product Status: Both parts maintain active status

The 43FR75 belongs to the Ohmicone® 40 series, while the 83FR75 belongs to the Acrasil® 80 series. These series represent different product lines from Ohmite with equivalent electrical and mechanical specifications for this resistance value and power class.

Parameter Comparison

Engineering Selection Recommendations

Both the 83FR75 and 43FR75 maintain identical electrical specifications and are classified under the same HTSUS and ECCN codes. Both parts carry active product status and share equivalent RoHS non-compliance classification. The dimensional variance between the two parts is minimal (0.003" diameter difference), with identical length specifications. Selection between these parts may be based on packaging availability, inventory levels, or series preference within the Ohmite product portfolio. The 43FR75 currently maintains higher inventory availability at 1,025 units compared to 737 units for the 83FR75.

Frequently Asked Questions (FAQ)

Q: Can the 43FR75 be used as a direct replacement for the 83FR75 in existing designs?

A: Yes. Both parts share identical electrical specifications (750 mOhms ±1%, 3W, ±90ppm/°C) and axial through-hole packaging. The minimal dimensional difference (0.003" diameter) does not affect mechanical compatibility in standard PCB layouts.

Q: What is the difference between the Acrasil® 80 and Ohmicone® 40 series?

A: These represent different product lines within Ohmite's resistor portfolio. For the 750 mOhms 3W specification, both series deliver equivalent electrical and mechanical performance. Series selection is typically driven by availability or design preference rather than functional differences.

Q: Are there any compliance differences between these parts?

A: No. Both parts share identical RoHS non-compliance status, ECCN classification (EAR99), and HTSUS code (8533.21.0080). Both maintain REACH Unaffected status.

Q: What is the significance of the packaging designation?

A: The 83FR75 is specified with "-" packaging notation, while the 43FR75 is designated as "Bulk" packaging. Both parts utilize identical axial through-hole construction. Packaging designation typically refers to distribution format rather than component form factor.

Q: How do the temperature coefficients compare?

A: Both parts specify ±90ppm/°C temperature coefficient, ensuring equivalent thermal stability across the operating range.