79F6R8K-RC Equivalent & Substitute Parts

Part Overview

The 79F6R8K-RC is a 6.8 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 175 mA maximum current with 2Ω maximum DC resistance. This through-hole axial component operates across the temperature range of -55°C to 105°C and is ROHS3 compliant. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

79F6R8K-RC

Bourns Inc.In Stock: 100479F6R8K-RC Datasheet

Current PartRFQ

8230-38-RC

Bourns Inc.In Stock: 18458230-38-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 79F6R8K-RC is evaluated based on the following critical parameters:

Inductance Value: The main part specifies 6.8 µH with ±10% tolerance, establishing the acceptable inductance range of 6.12 µH to 7.48 µH.

Current Rating: The 175 mA rating defines the maximum continuous current the inductor can handle without exceeding saturation limits.

DC Resistance: The 2Ω maximum specification constrains power dissipation and thermal performance in the application circuit.

Core Type and Shielding: Both the main part and substitutes use ferrite drum core construction with unshielded configuration, ensuring electromagnetic compatibility characteristics remain consistent.

Mounting and Package: Through-hole axial mounting is maintained across all parts to ensure mechanical compatibility with existing PCB layouts.

Compliance and Temperature Range: All parts maintain ROHS3 compliance and operate within the -55°C to 105°C temperature specification.

The 8230-38-RC is identified as a substitute based on its active product status, equivalent core construction, and compatible electrical and mechanical parameters within the allowed substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The 8230-38-RC is an active product from Bourns Inc. with ROHS3 compliance, providing design continuity for applications currently using the obsolete 79F6R8K-RC. Both components share identical core construction, shielding configuration, temperature operating range, and compliance certifications.

The 8230-38-RC offers improved electrical performance characteristics: higher current rating (260 mA versus 175 mA), lower DC resistance (1.8Ω versus 2Ω), and higher self-resonant frequency (68MHz versus 26MHz). These parameters indicate enhanced thermal efficiency and broader frequency response capability.

The inductance difference (5.6 µH versus 6.8 µH) represents an 18% reduction. Circuit designers must evaluate whether this inductance variance falls within acceptable tolerance for the target application, considering the ±10% tolerance specification of both components.

Frequently Asked Questions (FAQ)

Q: Can the 8230-38-RC directly replace the 79F6R8K-RC in existing designs?

A: Direct replacement requires circuit analysis to confirm that the 5.6 µH inductance value remains within acceptable operating parameters. The inductance difference of 1.2 µH must be evaluated against circuit performance requirements and tolerance specifications.

Q: What are the key differences between these two inductors?

A: The primary differences are inductance value (6.8 µH versus 5.6 µH), current rating (175 mA versus 260 mA), DC resistance (2Ω versus 1.8Ω), and product status (obsolete versus active). Both maintain identical core type, shielding, mounting configuration, and temperature range.

Q: Are the physical dimensions compatible?

A: Both components use through-hole axial mounting. The 79F6R8K-RC measures 0.100" diameter × 0.160" length, while the 8230-38-RC measures 0.120" diameter × 0.300" length. PCB layout verification is required to confirm mechanical fit.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 79F6R8K-RC and 8230-38-RC are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8504.50.4000).

Q: Which part should be selected for new designs?

A: The 8230-38-RC is the appropriate selection for new designs, as it maintains active product status and provides equivalent or superior electrical performance characteristics while maintaining full compliance requirements.