4590-474K Fixed Inductor Equivalent & Substitute Parts

Part Overview

The API Delevan Inc. 4590-474K is a 470 µH unshielded drum core wirewound inductor rated for 1.3 A continuous current with a maximum DC resistance of 393 mOhm. The part is manufactured as through-hole axial package inductor for use in general electronic applications. This inductor is classified as Active product status with 937 units in current inventory. Alternative models become necessary when specific compliance requirements must be met or when supply constraints affect primary part availability.

Substiute Parts

4590-474K

API Delevan Inc.In Stock: 9954590-474K Datasheet

Current PartRFQ

4590R-474K

API Delevan Inc.In Stock: 13734590R-474K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 4590R-474K serves as a direct substitute for the 4590-474K based on identical electrical and mechanical parameters. Substitution compatibility is determined by the following critical parameters:

• Inductance Value: 470 µH (exact match)
• Inductance Tolerance: ±10% (identical)
• Current Rating: 1.3 A continuous (identical)
• DC Resistance: 393 mOhm maximum (identical)
• Core Material & Type: Ferrite drum core, wirewound (identical)
• Shielding Configuration: Unshielded (identical)
• Operating Temperature Range: -55°C to 125°C (identical)
• Mounting & Package: Through-hole axial configuration (identical)
• Physical Dimensions: 0.455" Dia × 0.900" L (identical)

Both parts belong to the same API Delevan product family (4590 series) and maintain full functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

4590-474K Selection: Choose this part when RoHS non-compliance is acceptable for your application. This part maintains full Active product status with established supply availability.

4590R-474K Selection: Choose this part when ROHS3 compliance is required for your design. This variant is identical in all electrical and mechanical parameters while meeting current RoHS3 standards. Higher current inventory (1349 units) provides enhanced supply security compared to the primary part.

Both parts are classified as Active products, ensuring continued manufacturability and technical support. Selection between these two variants depends solely on compliance requirements relevant to your end-use application and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Are the 4590-474K and 4590R-474K electrically interchangeable? A: Yes. Both inductors provide identical inductance value (470 µH), current rating (1.3 A), DC resistance (393 mOhm maximum), and operating temperature range (-55°C to 125°C). They function identically in circuit applications requiring these specifications.

Q: Can I substitute the 4590-474K with the 4590R-474K in existing designs? A: Yes. The parts are mechanically and electrically identical, sharing the same axial through-hole package and physical dimensions (0.455" Dia × 0.900" L). Substitution requires no layout modifications or circuit re-evaluation.

Q: What is the primary difference between these two parts? A: The primary difference is RoHS compliance status. The 4590R-474K is ROHS3 compliant, while the 4590-474K is non-compliant. All electrical and mechanical parameters are identical.

Q: Which part should I specify for new designs? A: If regulatory compliance with ROHS3 is applicable to your product, specify the 4590R-474K. Both parts maintain Active product status and are suitable for new designs, but the RoHS-compliant variant provides better long-term compliance positioning.

Q: Are there any thermal or current limitations that would affect part selection? A: No. Both parts are rated for the same continuous current (1.3 A), saturation current (800 mA), and operating temperature range (-55°C to 125°C). Thermal and electrical performance are identical.

Q: What is the inductance tolerance for these parts? A: Both parts maintain ±10% inductance tolerance, measured at 1 kHz test frequency.