73F564AF-RC Equivalent & Substitute Parts

Part Overview

The 73F564AF-RC is a 560 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 200 mA maximum current with 5.3Ohm DC resistance. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part operates across the temperature range of -55°C to 105°C and meets ROHS3 compliance requirements.

Key Parameters

Parameter	Value
Inductance	560 µH
Inductance Tolerance	±5%
Current Rating	200 mA
DC Resistance (DCR)	5.3Ohm Max
Core Type	Ferrite Drum Core
Shielding	Unshielded
Mounting Type	Through Hole Axial
Operating Temperature	-55°C ~ 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 73F564AF-RC is determined by the following critical parameters:

Inductance Value: Must be 560 µH (exact match required)
Inductance Tolerance: ±5% or tighter acceptable
Core Type & Shielding: Ferrite drum core, unshielded configuration
Mounting Configuration: Through hole axial package
Current Rating: Minimum 200 mA required for direct substitution
DC Resistance: Lower DCR values acceptable; higher values require circuit validation
Compliance: ROHS3 compliance mandatory
Temperature Range: Must support minimum -55°C ~ 105°C operating window

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Parameter	73F564AF-RC (Bourns)	4590R-564J (API Delevan)	AIAP-01-561K-T (Abracon)
Inductance	560 µH	560 µH	560 µH
Inductance Tolerance	±5%	±5%	±10%
Current Rating	200 mA	1.15 A	210 mA
DC Resistance (DCR)	5.3Ohm Max	504mOhm Max	4.7Ohm Max
Core Material	Ferrite	Ferrite	Not specified
Shielding	Unshielded	Unshielded	Unshielded
Mounting Type	Through Hole Axial	Through Hole Axial	Through Hole Axial
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

4590R-564J (API Delevan Inc.) is the primary substitute for the 73F564AF-RC. This part exceeds the original current rating specification (1.15 A versus 200 mA) and provides significantly lower DC resistance (504mOhm versus 5.3Ohm). The extended operating temperature range (-55°C ~ 125°C) encompasses the original specification. ROHS3 compliance and active product status ensure long-term availability and supply chain stability.

AIAP-01-561K-T (Abracon LLC) serves as a secondary substitute with specifications closely aligned to the original part. Current rating (210 mA) marginally exceeds the 200 mA requirement, and DC resistance (4.7Ohm) is comparable to the original (5.3Ohm). The inductance tolerance is wider (±10% versus ±5%), which may impact circuit performance in tolerance-sensitive applications. Operating temperature range (-40°C ~ 105°C) covers the original specification except at the lower extreme (-55°C). ROHS3 compliance and active product status support availability.

Both substitutes are ROHS3 compliant and carry active product status, ensuring regulatory compliance and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-564J replace the 73F564AF-RC in all applications?

A: The 4590R-564J meets all critical substitution parameters: identical 560 µH inductance, ferrite drum core construction, unshielded configuration, and through-hole axial mounting. The higher current rating (1.15 A) and lower DC resistance (504mOhm) provide improved performance margins. Verify circuit requirements for the lower DCR value, as this affects impedance characteristics.

Q: What is the impact of the AIAP-01-561K-T's wider inductance tolerance (±10%)?

A: The ±10% tolerance on the AIAP-01-561K-T is wider than the original ±5% specification. In circuits where inductance value precision is critical for frequency response, filtering, or resonant behavior, this tolerance variance may require circuit validation or component selection binning.

Q: Are there physical size differences between these substitutes?

A: Yes. The 73F564AF-RC measures 0.400" Dia x 0.625" L (10.16mm x 15.88mm). The 4590R-564J is larger at 0.455" Dia x 0.900" L (11.55mm x 22.86mm). The AIAP-01-561K-T is significantly smaller at 0.130" Dia x 0.360" L (3.30mm x 9.14mm). PCB layout and mechanical clearance must be verified before substitution.

Q: Do all substitutes support the full -55°C to 105°C temperature range?

A: The 4590R-564J supports -55°C ~ 125°C, fully encompassing the original range. The AIAP-01-561K-T supports -40°C ~ 105°C, which covers the original range except at the lower extreme (-55°C). Verify application temperature requirements before selection.

Q: Are all substitutes ROHS3 compliant?

A: Yes. Both the 4590R-564J and AIAP-01-561K-T are ROHS3 compliant, matching the original part's regulatory status.

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