AIAP-03-4R7K Equivalent & Substitute Parts

Part Overview

The AIAP-03-4R7K is a 4.7 µH unshielded wirewound inductor manufactured by Abracon LLC, rated for 13.9 A continuous current with 8mOhm maximum DC resistance. This through-hole axial component operates across the industrial temperature range of -55°C to 125°C and maintains Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances, enabling procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value	Specification Basis
Inductance	4.7 µH	Core electrical requirement
Inductance Tolerance	±10%	Acceptable variation range
Current Rating	13.9 A	Continuous current capacity
DC Resistance (DCR)	8mOhm Max	Power loss and thermal performance
Operating Temperature	-55°C ~ 125°C	Environmental operating range
Mounting Type	Through Hole	PCB assembly compatibility
Package / Case	Axial	Physical form factor
Shielding	Unshielded	EMI characteristics
Test Frequency	1 kHz	Inductance measurement standard

Substitute Part Grouping Explanation

Substitution eligibility for the AIAP-03-4R7K is determined by strict alignment with the following critical parameters:

Electrical Equivalence Requirements:

Inductance value of 4.7 µH within ±10% tolerance
DC resistance not exceeding 8mOhm maximum
Operating temperature range encompassing -55°C to 125°C
Inductance measured at 1 kHz test frequency

Mechanical Compatibility Requirements:

Through-hole mounting type
Axial package configuration
Unshielded construction
Physical dimensions compatible with 0.449" diameter and 0.902" length envelope

Compliance Requirements:

RoHS3 compliance status
REACH unaffected classification
Active product status

The substitute part 4590R-472K meets these criteria with equivalent inductance, matching DC resistance specification, identical operating temperature range, and compatible through-hole axial form factor. The substitute maintains RoHS3 and REACH compliance with Active product status.

Parameter Comparison

Parameter	AIAP-03-4R7K (Main)	4590R-472K (Substitute)	Compatibility
Manufacturer	Abracon LLC	API Delevan Inc.	Different manufacturer
Inductance	4.7 µH	4.7 µH	Equivalent
Inductance Tolerance	±10%	±10%	Equivalent
Current Rating (Amps)	13.9 A	9.11 A	Substitute rated lower; verify application current requirements
DC Resistance (DCR)	8mOhm Max	8mOhm Max	Equivalent
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	Axial	Axial	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Type	Wirewound	Drum Core, Wirewound	Both wirewound construction
Size / Dimension	0.449" Dia x 0.902" L (11.40mm x 22.90mm)	0.455" Dia x 0.900" L (11.55mm x 22.86mm)	Physically compatible within tolerance
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Primary Selection (AIAP-03-4R7K): Select the AIAP-03-4R7K when application current requirements reach or approach 13.9 A. This part provides maximum current capacity within the specified inductance and resistance parameters. Both RoHS3 compliance and Active product status support long-term supply availability.

Substitute Selection (4590R-472K): The 4590R-472K serves as a functional substitute when application current requirements do not exceed 9.11 A. This part maintains electrical equivalence through matching inductance value, DC resistance specification, and operating temperature range. Physical dimensions remain compatible with through-hole axial mounting. RoHS3 compliance and Active product status are maintained.

Critical Selection Factor: Current rating represents the primary differentiator between these parts. The substitute part's 9.11 A rating is lower than the main part's 13.9 A rating. Application current draw must remain below the substitute's saturation current of 7.5 A to ensure reliable operation.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-472K replace the AIAP-03-4R7K in all applications?

A: Substitution is valid only when application current requirements do not exceed 9.11 A continuous current. The substitute part's lower current rating and 7.5 A saturation current must be considered against actual circuit current demands.

Q: Are the physical dimensions compatible for PCB mounting?

A: Yes. The substitute part dimensions of 0.455" diameter by 0.900" length are compatible with the main part's 0.449" diameter by 0.902" length specification. Both maintain through-hole axial form factor compatibility.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the AIAP-03-4R7K and 4590R-472K maintain RoHS3 compliance, REACH unaffected status, and Active product classification.

Q: What is the difference in core construction?

A: The AIAP-03-4R7K uses wirewound construction. The 4590R-472K uses drum core wirewound construction with ferrite core material. Both deliver equivalent inductance and DC resistance specifications at the 1 kHz test frequency.

Q: How do I determine which part to use?

A: Evaluate your circuit's maximum continuous current requirement. If current remains below 9.11 A, the 4590R-472K is electrically and mechanically compatible. If current approaches or exceeds 9.11 A, the AIAP-03-4R7K's higher 13.9 A rating is required.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message