AIAP-03-472K Equivalent & Substitute Parts

Part Overview

The AIAP-03-472K is a 4.7 mH unshielded wirewound inductor manufactured by Abracon LLC, rated for 390 mA maximum current with 3.19Ohm DC resistance. This through-hole axial component operates across -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1047 units in stock. Substitute parts are identified when equivalent inductance values, current ratings, and mechanical compatibility allow direct replacement in circuit applications.

Substiute Parts

AIAP-03-472K

Abracon LLCIn Stock: 1088AIAP-03-472K Datasheet

Current PartRFQ

4590R-475K

API Delevan Inc.In Stock: 9454590R-475K Datasheet

MFR RecommendedRFQ

5900-472-RC

Bourns Inc.In Stock: 18855900-472-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AIAP-03-472K is determined by the following criteria:

Primary Matching Parameters:

• Inductance value: 4.7 mH (±10% tolerance band)
• Mounting type: Through hole axial configuration
• Package compatibility: Axial form factor
• Shielding type: Unshielded

Secondary Compatibility Parameters:

• Current rating: Substitute must meet or exceed 390 mA requirement
• DC resistance: Substitute DCR must not significantly exceed 3.19Ohm to maintain circuit performance
• Operating temperature range: Substitute must support minimum -55°C to 125°C span
• RoHS and REACH compliance: Substitute must maintain ROHS3 and REACH Unaffected status

The identified substitutes (4590R-475K and 5900-472-RC) share the core 4.7 mH inductance specification and axial through-hole mounting, with variations in current rating, DCR, and core material that remain within acceptable substitution parameters.

Parameter Comparison

Engineering Selection Recommendations

4590R-475K (API Delevan Inc.): This substitute offers 415 mA current rating, exceeding the AIAP-03-472K specification by 25 mA. DC resistance is 3.79Ohm, representing a 0.6Ohm increase. Operating temperature range matches the original (-55°C to 125°C). All compliance certifications (ROHS3, REACH Unaffected) are maintained. Physical dimensions are within 0.006" diameter and 0.002" length variance.

5900-472-RC (Bourns Inc.): This substitute provides 340 mA current rating, which is 50 mA below the AIAP-03-472K specification. DC resistance is 3.7Ohm, a 0.51Ohm increase. Operating temperature range is -55°C to 105°C, reducing the upper limit by 20°C. All compliance certifications (ROHS3, REACH Unaffected) are maintained. Physical dimensions are within 0.004" diameter and 0.002" length variance.

Selection between substitutes depends on circuit current requirements and operating temperature constraints. The 4590R-475K maintains full temperature range compatibility. The 5900-472-RC is suitable only for applications not exceeding 105°C ambient conditions and 340 mA current draw.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-475K replace the AIAP-03-472K in all applications? A: The 4590R-475K shares identical inductance (4.7 mH), tolerance (±10%), operating temperature range (-55°C to 125°C), and mounting configuration. The higher current rating (415 mA vs. 390 mA) and slightly elevated DCR (3.79Ohm vs. 3.19Ohm) are within acceptable substitution parameters for most circuit designs. Physical dimensions vary by less than 0.01 inches.

Q: Is the 5900-472-RC suitable for high-temperature applications? A: The 5900-472-RC operates to 105°C maximum, which is 20°C below the AIAP-03-472K specification of 125°C. This substitute is not suitable for applications requiring the full -55°C to 125°C temperature range. Current rating is also reduced to 340 mA.

Q: How do core material differences affect substitution? A: The AIAP-03-472K core material is not specified. Both substitutes (4590R-475K and 5900-472-RC) use ferrite drum cores. All three parts maintain the same 4.7 mH inductance value at 1 kHz test frequency and ±10% tolerance, indicating functional equivalence for the specified inductance characteristic.

Q: Are physical dimension differences significant? A: All three parts are axial through-hole components with diameters between 0.449" and 0.455" and lengths between 0.900" and 0.902". These variations (less than 0.01 inches) are within standard PCB layout tolerances for axial component placement.

Q: Do all substitutes maintain compliance certifications? A: Yes. The AIAP-03-472K, 4590R-475K, and 5900-472-RC are all ROHS3 compliant and REACH Unaffected, maintaining regulatory compliance across substitution options.