73F823AF-RC Equivalent & Substitute Parts

Part Overview

The 73F823AF-RC is an 8.2 mH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 80 mA maximum current with 30 Ohm DC resistance. This through-hole axial component operates across -55°C to 105°C and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

73F823AF-RC

Bourns Inc.In Stock: 84873F823AF-RC Datasheet

Current PartRFQ

4470R-48J

API Delevan Inc.In Stock: 9804470R-48J Datasheet

SimilarRFQ

AIAP-02-822K

Abracon LLCIn Stock: 885AIAP-02-822K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 73F823AF-RC is determined by the following core parameters:

• Inductance Value: Must be 8.2 mH (±5% tolerance acceptable)
• Mounting Type: Must be through-hole axial configuration
• Shielding: Must be unshielded
• Current Rating: Must support minimum 80 mA operation
• DC Resistance: Lower DCR values are acceptable; higher values require evaluation against circuit requirements
• Operating Temperature Range: Must encompass or exceed the -55°C to 105°C specification
• RoHS Compliance: Must maintain ROHS3 compliance status

The substitute parts 4470R-48J and AIAP-02-822K meet the primary electrical and mechanical compatibility criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

4470R-48J (API Delevan Inc.): This substitute maintains active product status with equivalent inductance and tolerance specifications. Current rating of 82 mA exceeds the 80 mA requirement. The elevated DC resistance of 75 Ohm Max represents a significant increase from the original 30 Ohm specification and must be evaluated for circuit impact, particularly in applications sensitive to power dissipation or impedance matching. Operating temperature range extends to 125°C, providing enhanced thermal margin. ROHS3 and REACH compliance are maintained.

AIAP-02-822K (Abracon LLC): This substitute offers active product status with superior current handling at 140 mA and lower DC resistance of 20.8 Ohm Max, reducing power dissipation compared to the original part. Inductance tolerance is ±10%, which is wider than the original ±5% specification. Operating temperature range is -40°C to 85°C, which does not extend to the full -55°C lower limit of the original specification. This limitation applies to applications requiring operation below -40°C. ROHS3 and REACH compliance are maintained.

Frequently Asked Questions (FAQ)

Q: Can 4470R-48J be used as a direct replacement for 73F823AF-RC?

A: 4470R-48J is electrically compatible for inductance and current rating. However, the DC resistance increases from 30 Ohm to 75 Ohm Max. This higher resistance increases power dissipation and may affect circuit performance in applications where impedance or thermal characteristics are critical. Circuit validation is necessary before deployment.

Q: What is the primary limitation of AIAP-02-822K as a substitute?

A: The operating temperature range of -40°C to 85°C does not cover the full -55°C lower specification of the original part. Applications requiring operation below -40°C cannot use this substitute. Additionally, the ±10% inductance tolerance is wider than the original ±5%, which may impact circuits with tight inductance requirements.

Q: Are all substitute parts through-hole axial components?

A: Yes. Both 4470R-48J and AIAP-02-822K maintain through-hole axial mounting configuration, ensuring mechanical and electrical compatibility with existing PCB layouts designed for the 73F823AF-RC.

Q: Do the substitute parts maintain regulatory compliance?

A: Yes. Both 4470R-48J and AIAP-02-822K are ROHS3 compliant and REACH unaffected, matching the compliance status of the original 73F823AF-RC.

Q: Which substitute offers the best overall compatibility?

A: Selection depends on application requirements. For circuits sensitive to DC resistance and operating across the full -55°C to 105°C range, 4470R-48J is preferable despite higher DCR. For applications operating within -40°C to 85°C with lower power dissipation priority, AIAP-02-822K provides superior current handling and reduced resistance.