Equivalent & Substitute Parts for 4590-333K

Part Overview

The 4590-333K is a 33 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for through-hole mounting applications. This fixed inductor operates at a rated current of 4.87 A with a maximum DC resistance of 28 mOhm and is specified for operation across the temperature range of -55°C to 125°C. The component is classified as Active product status with 1068 pieces currently in stock.

Identifying equivalent and substitute parts becomes necessary when addressing supply chain constraints, compliance requirements, or design optimization needs while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

4590-333K

API Delevan Inc.In Stock: 10904590-333K Datasheet

Current PartRFQ

4590R-333K

API Delevan Inc.In Stock: 25714590R-333K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4590-333K is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Inductance value: 33 µH
• Inductance tolerance: ±10%
• Current rating: 4.87 A
• Saturation current: 2.9 A
• DC resistance: 28 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Parameters (Must Match):

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

Environmental Parameters (Must Match):

• Operating temperature range: -55°C to 125°C
• Inductance test frequency: 1 kHz

The 4590R-333K qualifies as a direct substitute based on complete alignment with all specified electrical, mechanical, and environmental parameters. Both components are manufactured by API Delevan Inc. within the same product family and maintain identical functional specifications.

Parameter Comparison

Engineering Selection Recommendations

The 4590R-333K serves as a direct electrical and mechanical equivalent to the 4590-333K. Both components maintain identical specifications across all critical functional parameters: inductance value, current rating, DC resistance, core material, shielding configuration, mounting type, package geometry, and operating temperature range.

The primary distinction between these parts is regulatory compliance status. The 4590R-333K carries ROHS3 compliance certification, whereas the 4590-333K is classified as RoHS non-compliant. This difference is significant for applications subject to RoHS directives or customer specifications requiring compliant components.

Selection between these parts should be based on:

1. Regulatory Requirements: If RoHS3 compliance is mandated by design specifications, customer requirements, or regional regulations, the 4590R-333K is the appropriate selection.

2. Supply Availability: The 4590R-333K currently maintains higher inventory levels (2477 pieces) compared to the 4590-333K (1068 pieces), providing improved supply chain flexibility.

3. Design Compatibility: Both parts are electrically and mechanically interchangeable. PCB layout, circuit design, and thermal management considerations remain unchanged between selections.

Both components are classified as Active product status, confirming ongoing manufacturer support and availability.

Frequently Asked Questions (FAQ)

Q: Can the 4590R-333K be used as a direct replacement for the 4590-333K in existing designs?

A: Yes. The 4590R-333K is electrically and mechanically equivalent to the 4590-333K. All critical parameters—inductance, current rating, DC resistance, core material, shielding, mounting type, package configuration, and operating temperature range—are identical. No circuit redesign or PCB layout modification is required.

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

A: The series designation change from 4590 to 4590R reflects a regulatory compliance update. The 4590R-333K incorporates ROHS3 compliance, while the 4590-333K does not. Electrical and mechanical specifications remain unchanged.

Q: Are there any thermal or performance differences between these parts?

A: No. Both components share identical DC resistance (28 mOhm maximum), current rating (4.87 A), saturation current (2.9 A), and operating temperature range (-55°C to 125°C). Thermal behavior and performance characteristics are equivalent.

Q: Which part should be selected for new designs?

A: For new designs, the 4590R-333K is the appropriate selection due to ROHS3 compliance certification. This ensures alignment with current regulatory standards and customer compliance requirements.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both the 4590-333K and 4590R-333K maintain identical axial package dimensions of 0.455" diameter by 0.900" length (11.55mm x 22.86mm). PCB footprints and mounting hole spacing are unchanged.

Q: What is the inductance tolerance for both parts?

A: Both parts carry an inductance tolerance of ±10%, measured at 1 kHz test frequency. This tolerance applies equally to the 4590-333K and 4590R-333K.

Q: Is the 4590R-333K available in the same packaging format?

A: Yes. Both parts are supplied in bulk packaging as through-hole axial components. No packaging format differences exist between the two parts.