AIAP-03-682K Equivalent & Substitute Parts

Part Overview

The AIAP-03-682K is a 6.8 mH unshielded wirewound inductor manufactured by Abracon LLC, rated for 322 mA maximum current with 5.69Ohm DC resistance. This through-hole axial component operates across the industrial temperature range of -55°C to 125°C and maintains ROHS3 compliance. The part is currently active in production with 975 units 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-03-682K

Abracon LLCIn Stock: 1011AIAP-03-682K Datasheet

Current PartRFQ

4590R-685K

API Delevan Inc.In Stock: 15784590R-685K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 4590R-685K from API Delevan Inc. qualifies as a substitute for the AIAP-03-682K based on the following critical parameters:

• Inductance Value: Both parts specify 6.8 mH at 1 kHz test frequency with ±10% tolerance, ensuring electrical equivalence in inductance performance.
• Current Rating: The substitute provides 340 mA rating, which exceeds the main part's 322 mA requirement, maintaining safe operating margin.
• DC Resistance: The substitute's 5.75Ohm maximum DCR is within acceptable range relative to the main part's 5.69Ohm specification.
• Operating Temperature: Both parts operate across -55°C to 125°C, ensuring thermal compatibility.
• Mounting and Package: Both are through-hole axial components with equivalent mechanical form factors (0.449" to 0.455" diameter, 0.902" to 0.900" length).
• Compliance: Both maintain ROHS3 compliance and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

Both the AIAP-03-682K and 4590R-685K maintain active product status with current manufacturing availability. Selection between these parts should be based on:

• Supply Chain Availability: The 4590R-685K currently has 1537 units in stock compared to 975 units for the AIAP-03-682K, providing greater inventory availability.
• Regulatory Compliance: Both parts satisfy ROHS3 and REACH requirements for regulated applications.
• Performance Margin: The 4590R-685K's higher current rating (340 mA vs. 322 mA) and marginally higher DCR (5.75Ohm vs. 5.69Ohm) present acceptable trade-offs within the specified tolerance band.
• Mechanical Compatibility: Axial through-hole mounting and similar physical dimensions ensure direct board-level compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-685K directly replace the AIAP-03-682K in existing designs?

A: Yes. Both parts share identical inductance values, tolerance specifications, operating temperature ranges, and mounting configurations. The substitute's higher current rating and marginally increased DCR remain within acceptable engineering parameters for this inductance category.

Q: What is the significance of the different core materials (unspecified vs. ferrite drum core)?

A: The main part's core material is not specified in the provided data. The substitute uses a ferrite drum core construction. Both deliver the same 6.8 mH inductance at 1 kHz test frequency with equivalent electrical performance in the specified operating range.

Q: Are there dimensional differences between these parts?

A: Dimensions are nearly identical. The AIAP-03-682K measures 0.449" diameter × 0.902" length (11.40mm × 22.90mm). The 4590R-685K measures 0.455" diameter × 0.900" length (11.55mm × 22.86mm). These minor variations do not affect through-hole board compatibility.

Q: What does the ±10% inductance tolerance mean for substitution?

A: Both parts specify ±10% tolerance at 1 kHz. This means the actual inductance value can vary within a ±10% band around the nominal 6.8 mH specification. Both parts meet this same tolerance requirement, ensuring equivalent performance in circuits designed for this inductance range.

Q: Is the higher current saturation rating of the 4590R-685K (220 mA Isat) relevant?

A: The main part does not specify a saturation current value. The substitute's 220 mA Isat specification indicates the current level at which inductance begins to degrade. This additional specification in the substitute provides design margin above the 322 mA continuous rating.

Q: Do both parts require the same PCB footprint?

A: Yes. Both are through-hole axial components with equivalent lead spacing and mounting requirements. No PCB layout modifications are necessary when substituting between these parts.