4590-564K Fixed Inductor Equivalent & Substitute Parts

Part Overview

The 4590-564K is a 560 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for through-hole mounting applications. This fixed inductor operates at 1.15 A rated current with a maximum DC resistance of 504 mOhm and functions across an operating temperature range of -55°C to 125°C. The component is classified as Active product status with 859 pieces currently in stock.

Substitute parts become necessary when original inventory is depleted, when supply chain constraints affect availability, or when design revisions require components with improved compliance certifications. The 4590R-564K series provides an equivalent alternative with enhanced RoHS3 compliance while maintaining identical electrical and mechanical specifications.

Substiute Parts

4590-564K

API Delevan Inc.In Stock: 9374590-564K Datasheet

Current PartRFQ

4590R-564K

API Delevan Inc.In Stock: 34924590R-564K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4590-564K is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Inductance value: 560 µH
• Inductance tolerance: ±10%
• Current rating: 1.15 A
• Saturation current: 740 mA
• DC resistance: 504 mOhm maximum
• Core material: Ferrite

Mechanical Parameters (Must Match Exactly):

• Package type: Axial through hole
• Physical dimensions: 0.455" Dia x 0.900" L (11.55mm x 22.86mm)
• Shielding configuration: Unshielded

Environmental Parameters (Must Match Exactly):

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

The 4590R-564K qualifies as a direct substitute because it maintains identical values across all electrical, mechanical, and environmental parameters while offering improved regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

4590-564K Selection Criteria:

• Current inventory availability: 859 pieces in stock
• Suitable for applications where RoHS non-compliance is acceptable
• Appropriate for legacy system designs or non-regulated applications

4590R-564K Selection Criteria:

• Enhanced inventory availability: 3,390 pieces in stock
• RoHS3 compliance certification required for new designs
• Recommended for applications subject to environmental regulations or OEM compliance requirements
• Identical electrical and mechanical performance ensures direct drop-in replacement capability
• Series designation change (4590R vs. 4590) reflects compliance improvement without functional modification

Both components maintain identical electrical performance, thermal characteristics, and mechanical compatibility. Selection between these parts should be based on regulatory compliance requirements and inventory availability rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-564K replace the 4590-564K in existing designs?

A: Yes. The 4590R-564K is a direct electrical and mechanical equivalent. All critical parameters including inductance (560 µH), current rating (1.15 A), DC resistance (504 mOhm maximum), physical dimensions (0.455" Dia x 0.900" L), and operating temperature range (-55°C to 125°C) are identical. The component functions as a drop-in replacement in through-hole PCB applications.

Q: What is the primary difference between these two part numbers?

A: The 4590R-564K incorporates RoHS3 compliance certification, while the 4590-564K is RoHS non-compliant. All electrical specifications, mechanical dimensions, and performance characteristics remain unchanged. The series designation change (4590 to 4590R) indicates the compliance upgrade.

Q: Are there any PCB layout or mounting considerations when substituting these parts?

A: No. Both components use identical axial through-hole packaging with matching physical dimensions (0.455" Dia x 0.900" L / 11.55mm x 22.86mm). PCB footprints, lead spacing, and mounting procedures are identical.

Q: What is the saturation current specification, and why is it important?

A: The saturation current (Isat) is specified at 740 mA for both parts. This represents the current level at which the inductor's core begins to saturate, causing inductance degradation. The rated current of 1.15 A exceeds this saturation point, indicating the component operates in a region where inductance characteristics remain stable within the specified tolerance.

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

A: The inductance test frequency is specified at 1 kHz. Self-resonant frequency data is not provided in the component specifications. Applications requiring operation at frequencies significantly above 1 kHz should be evaluated based on actual circuit performance testing.

Q: What is the significance of the ±10% inductance tolerance?

A: The ±10% tolerance indicates that actual inductance values will fall within the range of 504 µH to 616 µH. Circuit designs must account for this tolerance band when calculating filter response, resonant frequencies, or other inductance-dependent parameters.

Q: Are these components suitable for surface-mount applications?

A: No. Both the 4590-564K and 4590R-564K are through-hole axial components. They are not designed for surface-mount technology (SMT) applications and require through-hole PCB mounting.