API Delevan 4590-155K Equivalent & Substitute Parts

Part Overview

The API Delevan 4590-155K is a fixed inductance through-hole component featuring a 1.5 mH unshielded drum core wirewound design with ferrite material. This inductor is rated for 750 mA continuous current with a maximum DC resistance of 1.18 Ohm and operates across the temperature range of -55°C to 125°C. The component is currently active in production with 765 pieces available in new original stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the specified tolerances and ratings. The primary reason for identifying alternative models is to ensure design continuity when the original part number becomes unavailable or when alternative compliance certifications are required for specific applications.

Substiute Parts

4590-155K

API Delevan Inc.In Stock: 8514590-155K Datasheet

Current PartRFQ

4590R-155K

API Delevan Inc.In Stock: 11604590R-155K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4590-155K is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Inductance value of 1.5 mH at ±10% tolerance, current rating of 750 mA, saturation current of 460 mA, and maximum DC resistance of 1.18 Ohm.

Mechanical Parameters: Ferrite drum core construction, unshielded configuration, through-hole mounting, axial package orientation, and physical dimensions of 0.455" diameter by 0.900" length.

Environmental Parameters: Operating temperature range of -55°C to 125°C and inductance measurement at 1 kHz test frequency.

Regulatory Parameters: ECCN classification EAR99 and HTSUS code 8504.50.4000.

Substitute parts must maintain identical values across all listed parameters. No deviations in electrical ratings, core material, shielding configuration, or physical dimensions are permitted for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The 4590R-155K serves as a direct electrical and mechanical equivalent to the 4590-155K. Both components are manufactured by API Delevan Inc. and maintain identical specifications across all critical electrical parameters, core construction, physical dimensions, and operating characteristics.

The primary distinction between these parts is regulatory compliance status. The 4590-155K is RoHS non-compliant, while the 4590R-155K achieves ROHS3 compliance. For applications subject to RoHS directives or customer requirements mandating RoHS3 certification, the 4590R-155K is the appropriate selection. Both parts maintain identical ECCN and HTSUS classifications.

Stock availability differs between the two part numbers, with the 4590R-155K currently showing higher inventory levels at 1115 pieces compared to 765 pieces for the 4590-155K. Both components are active products in current production.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-155K be used as a direct replacement for the 4590-155K in existing designs?

A: Yes. The 4590R-155K is electrically and mechanically equivalent to the 4590-155K. All electrical parameters, physical dimensions, mounting characteristics, and operating temperature ranges are identical. The components are pin-compatible and footprint-compatible for through-hole PCB applications.

Q: What is the difference between the 4590 and 4590R series designations?

A: The 4590R series designation indicates ROHS3 compliance, while the 4590 series does not carry this certification. The electrical and mechanical specifications remain identical between the two series for equivalent part numbers.

Q: Are there any compliance or certification differences I should consider?

A: The 4590R-155K carries ROHS3 compliance certification, while the 4590-155K is RoHS non-compliant. Both parts share identical ECCN (EAR99) and HTSUS (8504.50.4000) classifications. Selection between these parts should be based on your application's regulatory requirements.

Q: Will the 4590R-155K perform identically to the 4590-155K in circuit operation?

A: Yes. Both inductors deliver identical electrical performance. The inductance value of 1.5 mH, current rating of 750 mA, saturation current of 460 mA, and DC resistance of 1.18 Ohm maximum are equivalent. Operating temperature range and frequency response characteristics are identical.

Q: Are the physical dimensions and mounting footprints identical?

A: Yes. Both the 4590-155K and 4590R-155K feature identical axial through-hole package dimensions of 0.455" diameter by 0.900" length (11.55mm x 22.86mm). PCB layout and mounting hole spacing are compatible between the two part numbers.

Q: Which part should I specify for new designs?

A: For new designs, the 4590R-155K is recommended due to ROHS3 compliance certification and higher current stock availability. The electrical and mechanical performance is identical to the 4590-155K, with the added benefit of regulatory compliance for RoHS-restricted applications.