AIAP-03-680K Equivalent & Substitute Parts

Part Overview

The AIAP-03-680K is a 68 µH unshielded wirewound inductor manufactured by Abracon LLC, rated for 3.31 A continuous current with a maximum DC resistance of 47 mOhm. This through-hole axial component operates across the industrial temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 733 pieces available in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

AIAP-03-680K

Abracon LLCIn Stock: 830AIAP-03-680K Datasheet

Current PartRFQ

4590R-683K

API Delevan Inc.In Stock: 255034590R-683K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 4590R-683K from API Delevan Inc. qualifies as a direct substitute based on the following critical parameters:

• Inductance Match: Both parts specify 68 µH with ±10% tolerance, meeting the same inductance requirement at the 1 kHz test frequency
• Current Rating Compatibility: The substitute provides 3.355 A, which exceeds the main part's 3.31 A requirement, ensuring adequate current handling capacity
• DC Resistance: The substitute's 59 mOhm maximum DCR is within acceptable limits for this inductor category, with only a 12 mOhm increase from the main part
• Mechanical Compatibility: Both parts use through-hole axial mounting with comparable physical dimensions (0.449" vs 0.455" diameter; 0.902" vs 0.900" length)
• Temperature Range: Identical operating range of -55°C to 125°C
• Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected

Parameter Comparison

Engineering Selection Recommendations

Both the AIAP-03-680K and 4590R-683K are active production components with full ROHS3 compliance and REACH unaffected status, making either suitable for new designs and production environments. The 4590R-683K offers higher current capacity (3.355 A vs 3.31 A) and greater inventory availability (25,400 pieces vs 733 pieces), providing supply chain advantages. The trade-off is a 12 mOhm increase in DC resistance, which remains within acceptable limits for most circuit applications. Selection between these parts should be based on specific circuit requirements regarding power dissipation tolerance and component availability in your supply chain.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-683K directly replace the AIAP-03-680K in existing designs?

A: Yes. Both parts meet the same inductance specification (68 µH ±10%), operate across identical temperature ranges (-55°C to 125°C), and use compatible through-hole axial packaging. The substitute's higher current rating (3.355 A) and ferrite drum core construction do not prevent direct substitution in standard applications.

Q: What is the significance of the DC resistance difference?

A: The 4590R-683K has 12 mOhm higher maximum DC resistance (59 mOhm vs 47 mOhm). This results in slightly higher power dissipation under load. For applications where power dissipation is critical, calculate the thermal impact using I²R losses at your operating current to confirm acceptability.

Q: Are there physical dimension concerns?

A: Physical dimensions are nearly identical. The AIAP-03-680K measures 0.449" diameter × 0.902" length, while the 4590R-683K measures 0.455" diameter × 0.900" length. These minor variations are within standard PCB layout tolerances for through-hole components.

Q: What is the difference between wirewound and drum core construction?

A: The AIAP-03-680K uses standard wirewound construction, while the 4590R-683K uses a ferrite drum core with wirewound design. Both achieve the same 68 µH inductance specification. The drum core design in the substitute may offer improved frequency stability characteristics, though this parameter is not specified in the provided data.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the AIAP-03-680K and 4590R-683K are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.