4590-684K Equivalent & Substitute Parts

Part Overview

The 4590-684K is a 680 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 1.08 A continuous current with a maximum DC resistance of 570mOhm. This through-hole axial component operates across the industrial temperature range of -55°C to 125°C and is currently in active production status.

Substitute parts become necessary when the original manufacturer part is unavailable, when alternative packaging formats are required for assembly processes, or when compliance certifications must be upgraded for specific applications.

Substiute Parts

4590-684K

API Delevan Inc.In Stock: 10654590-684K Datasheet

Current PartRFQ

AIAP-03-681K

Abracon LLCIn Stock: 2953AIAP-03-681K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4590-684K is determined by the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 680 µH (exact match required)
• Inductance tolerance: ±10% (matching tolerance band)
• Shielding configuration: Unshielded (same electromagnetic profile)
• Mounting type: Through Hole (assembly compatibility)
• Package form: Axial (PCB footprint compatibility)
• Operating temperature range: -55°C ~ 125°C (environmental compatibility)
• Inductance test frequency: 1 kHz (measurement standard alignment)

Allowable Variation Parameters:

• Current rating: Minimum 1.05 A (substitute must support the application current)
• DC resistance: Up to 570mOhm maximum (electrical performance tolerance)
• Core material: May differ (ferrite or equivalent, provided inductance and current ratings are met)
• Packaging format: Bulk or Tray (supply chain variation)
• Manufacturer: Different OEM acceptable (cross-manufacturer equivalence)

The AIAP-03-681K meets all mandatory matching criteria and falls within allowable variation limits for current rating and DC resistance.

Parameter Comparison

Engineering Selection Recommendations

4590-684K (API Delevan Inc.):

• Product Status: Active
• RoHS Status: Non-compliant
• REACH Status: Unaffected
• Selection basis: Original specification reference, established supply chain

AIAP-03-681K (Abracon LLC):

• Product Status: Active
• RoHS Status: ROHS3 Compliant
• REACH Status: Unaffected
• Selection basis: RoHS3 compliance certification, lower DC resistance (548mOhm vs 570mOhm), higher inventory availability (2880 Pcs vs 1024 Pcs)

The AIAP-03-681K is electrically and mechanically compatible with the 4590-684K. Selection between these parts should be based on compliance requirements and supply chain availability. The substitute part offers improved RoHS compliance status and marginally superior DC resistance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the AIAP-03-681K directly replace the 4590-684K in existing designs?

A: Yes. Both parts share identical inductance values (680 µH), tolerance bands (±10%), operating temperature ranges (-55°C ~ 125°C), and mounting configurations (through-hole axial). The substitute part's current rating (1.05 A) and DC resistance (548mOhm) are within acceptable operating parameters for applications designed for the original 1.08 A / 570mOhm specification.

Q: What is the physical compatibility between these parts?

A: Physical dimensions are equivalent within standard PCB assembly tolerances. The 4590-684K measures 0.455" diameter × 0.900" length, while the AIAP-03-681K measures 0.449" diameter × 0.902" length. These dimensional variations do not affect through-hole mounting compatibility or PCB footprint requirements.

Q: Does the substitute part meet compliance requirements?

A: The AIAP-03-681K carries ROHS3 compliance certification, whereas the 4590-684K is RoHS non-compliant. Both parts are REACH Unaffected. Selection should align with your product's compliance obligations.

Q: Are there packaging differences between these parts?

A: Yes. The 4590-684K is supplied in Bulk packaging, while the AIAP-03-681K is supplied in Tray packaging. This affects handling and assembly processes but does not impact electrical or mechanical performance.

Q: What is the significance of the lower DC resistance in the substitute part?

A: The AIAP-03-681K exhibits lower DC resistance (548mOhm vs 570mOhm), which results in reduced resistive losses and lower heat generation during operation. This represents an improvement over the original specification and is fully compatible with designs rated for the 4590-684K.