83F7K5 Equivalent & Substitute Parts

Part Overview

The Ohmite 83F7K5 is a 7.5 kOhms ±1% 3W through-hole resistor with axial wirewound construction, part of the Acrasil® 80 series. This component is designed for applications requiring precision resistance with moderate power dissipation in compact form factors. The part maintains active product status with 925 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across alternative manufacturer offerings or product series within the same manufacturer.

Substiute Parts

83F7K5

OhmiteIn Stock: 102883F7K5 Datasheet

Current PartRFQ

43F7K5

OhmiteIn Stock: 108843F7K5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 83F7K5 is determined by strict equivalence across the following critical parameters:

• Resistance value: 7.5 kOhms
• Tolerance: ±1%
• Power rating: 3W
• Composition: Wirewound
• Package configuration: Axial through-hole
• Temperature coefficient: ±20ppm/°C
• Termination count: 2

The substitute part 43F7K5 meets all these criteria, differing only in series designation (Ohmicone® 40 versus Acrasil® 80), packaging format (Bulk versus Box), and minor dimensional variance within acceptable mechanical tolerances. Both parts maintain identical electrical performance specifications and are manufactured by Ohmite.

Parameter Comparison

Engineering Selection Recommendations

Both the 83F7K5 and 43F7K5 are active products from Ohmite with identical electrical specifications. Selection between these parts should be based on:

• Packaging requirements: The 83F7K5 is supplied in Box packaging, while the 43F7K5 is supplied in Bulk packaging. Choose based on procurement and inventory management needs.
• Dimensional tolerance: The 43F7K5 has a marginally larger diameter (0.220" versus 0.217"), which may affect fit in space-constrained applications. Verify mechanical clearance in your specific assembly.
• Availability: Current inventory shows 1070 units of 43F7K5 versus 925 units of 83F7K5, which may influence lead time considerations.
• Compliance: Both parts maintain identical RoHS non-compliant status and carry the same ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the 43F7K5 be used as a direct replacement for the 83F7K5?

A: Yes. Both parts share identical electrical specifications: 7.5 kOhms resistance, ±1% tolerance, 3W power rating, wirewound construction, and ±20ppm/°C temperature coefficient. The primary differences are packaging format and minor dimensional variance.

Q: What is the significance of the series designation difference (Acrasil® 80 versus Ohmicone® 40)?

A: Series designation indicates the product line within Ohmite's resistor portfolio. Both series employ wirewound technology with equivalent electrical performance for this resistance and power rating. The series difference does not affect functional compatibility.

Q: Are there dimensional concerns when substituting the 43F7K5 for the 83F7K5?

A: The 43F7K5 has a diameter of 0.220" compared to the 83F7K5 at 0.217", a difference of 0.003". Both maintain the same 0.594" length. Verify that your PCB layout and mechanical assembly accommodate this minor diameter increase.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the 83F7K5 and 43F7K5 share identical RoHS non-compliant status, ECCN classification (EAR99), and HTSUS codes. They are equivalent for regulatory and export purposes.

Q: Which part should I select for new designs?

A: Either part is suitable for new designs. Selection should be based on packaging preference (Box versus Bulk), current inventory availability, and mechanical fit verification in your specific application.