API Delevan 4590-223K Fixed Inductor Equivalent & Substitute Parts

Part Overview

The API Delevan 4590-223K is a 22 µH unshielded drum core wirewound inductor rated for 5.26 A continuous current with a maximum DC resistance of 24 mOhm. This through-hole axial component operates across the temperature range of -55°C to 125°C and is designed for applications requiring fixed inductance filtering, energy storage, and signal conditioning in power supply and RF circuits.

The 4590-223K maintains Active product status with 788 pieces currently in stock. Identifying equivalent substitute parts is essential for supply chain continuity, design flexibility, and compliance with evolving regulatory requirements such as RoHS3 standards.

Substiute Parts

4590-223K

API Delevan Inc.In Stock: 8394590-223K Datasheet

Current PartRFQ

4590R-223K

API Delevan Inc.In Stock: 15274590R-223K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 4590-223K are identified based on strict electrical and mechanical parameter matching within the API Delevan product family. The substitution logic is based on the following criteria:

Electrical Parameters (Non-negotiable):

• Inductance value: 22 µH at 1 kHz test frequency
• Inductance tolerance: ±10%
• Current rating: 5.26 A minimum
• DC resistance: 24 mOhm maximum
• Saturation current: 3.5 A minimum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Parameters (Non-negotiable):

• Mounting type: Through Hole
• Package configuration: Axial
• Physical dimensions: 0.455" Dia x 0.900" L (11.55mm x 22.86mm)

Environmental Parameters (Non-negotiable):

• Operating temperature range: -55°C to 125°C

Regulatory Compliance (Preferred but not blocking):

• RoHS status and REACH compliance may differ between main part and substitutes

The 4590R-223K qualifies as a direct substitute because it maintains identical electrical specifications, mechanical form factor, and environmental ratings while offering improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criterion: Regulatory Compliance

The 4590R-223K is the preferred substitute for new designs and production runs subject to RoHS3 compliance requirements. Both parts maintain identical electrical performance, mechanical compatibility, and environmental operating specifications. The 4590R-223K achieves ROHS3 Compliant status, whereas the 4590-223K is RoHS non-compliant.

Inventory and Supply Chain Considerations

The 4590R-223K offers superior supply chain availability with 1510 pieces in stock compared to 788 pieces for the 4590-223K. Both parts are Active status products from API Delevan Inc., ensuring continued manufacturer support and technical documentation access.

Direct Substitution Compatibility

The 4590R-223K provides 100% functional and mechanical interchangeability with the 4590-223K. No circuit redesign, PCB layout modification, or thermal management adjustments are required. The parts are pin-compatible, footprint-compatible, and electrically equivalent across all specified operating conditions.

Application Continuity

For existing designs currently using the 4590-223K, the 4590R-223K serves as a drop-in replacement without performance degradation. The identical inductance value, current rating, DC resistance, saturation characteristics, and temperature range ensure seamless integration into established circuits.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-223K replace the 4590-223K in existing production?

A: Yes. The 4590R-223K is a direct substitute with identical electrical specifications (22 µH inductance, 5.26 A current rating, 24 mOhm DCR, 3.5 A saturation current), mechanical form factor (axial through-hole, 0.455" Dia x 0.900" L), and operating temperature range (-55°C to 125°C). No circuit modifications are required.

Q: What is the primary difference between these two parts?

A: The 4590R-223K achieves ROHS3 Compliant status, while the 4590-223K is RoHS non-compliant. All other electrical, mechanical, and environmental parameters are identical.

Q: Are there any frequency-dependent differences between these inductors?

A: Both parts are tested and specified at 1 kHz inductance frequency. No frequency-dependent performance differences are documented in the provided specifications.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Substitution is based on the provided electrical parameters measured at 1 kHz. Self-resonant frequency data is not provided for either part. Application suitability at frequencies above 1 kHz requires consultation of detailed frequency response curves from the manufacturer.

Q: What is the saturation current significance for circuit design?

A: The 3.5 A saturation current (Isat) defines the maximum DC bias current before the inductor enters nonlinear operation and inductance value degrades. Both parts share identical saturation specifications, ensuring equivalent performance margins in current-limited applications.

Q: Are the physical dimensions identical for PCB layout purposes?

A: Yes. Both parts are specified at 0.455" Dia x 0.900" L (11.55mm x 22.86mm). PCB footprints, lead spacing, and mounting hole patterns are identical.

Q: Which part should be selected for new designs?

A: The 4590R-223K is recommended for new designs due to ROHS3 compliance and higher inventory availability (1510 pieces vs. 788 pieces). Both parts are Active status products with continued manufacturer support.

Q: Is there a performance difference in DC resistance between these parts?

A: No. Both parts specify 24 mOhm maximum DC resistance, ensuring identical power dissipation and thermal characteristics at rated current.