Bourns 5800-390 39µH Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5800-390 is a 39 µH unshielded drum core wirewound inductor rated for 1.2 A continuous current with a maximum DC resistance of 97 mOhm. This through-hole axial component operates across the industrial temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance filtering and energy storage in power conversion circuits.

The 5800-390 carries an obsolete product status. Identifying equivalent and substitute parts ensures design continuity and supply chain reliability for legacy system maintenance and new production runs requiring compatible inductance characteristics.

Substiute Parts

5800-390

Bourns Inc.In Stock: 11135800-390 Datasheet

Current PartRFQ

5800-390-RC

Bourns Inc.In Stock: 10915800-390-RC Datasheet

DirectRFQ

2474-20L

API Delevan Inc.In Stock: 7662474-20L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5800-390 are identified based on electrical and mechanical compatibility within the following criteria:

Primary Substitution Criteria:

• Inductance value: 39 µH (exact match required)
• Core material: Ferrite (unshielded)
• Mounting type: Through hole axial configuration
• Operating temperature range: Minimum -55°C to 105°C coverage
• Inductance test frequency: 1 kHz

Acceptable Parameter Variations:

• Current rating: Equal to or greater than 1.2 A
• DC resistance: Equal to or less than 97 mOhm
• Inductance tolerance: ±10% to ±15%
• Saturation current: Minimum 1.0 A

The 5800-390-RC represents a direct equivalent with identical electrical specifications and improved product status. The 2474-20L from API Delevan Inc. qualifies as a functional substitute with enhanced current handling and lower DC resistance, though with different core construction (molded vs. drum core) and slightly modified dimensional characteristics.

Parameter Comparison

Engineering Selection Recommendations

5800-390-RC (Direct Equivalent): This part maintains identical electrical specifications and physical dimensions to the 5800-390. The primary advantage is active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment for new designs. Select this part for direct replacement in legacy system repairs or when RoHS compliance is required.

2474-20L (Functional Substitute): This API Delevan inductor provides superior current handling (2.05 A vs. 1.2 A) and lower DC resistance (84 mOhm vs. 97 mOhm), resulting in reduced power dissipation. The extended operating temperature range (-55°C to 125°C) supports applications with elevated thermal requirements. The molded construction differs from the drum core design, and dimensional variations (0.240" diameter vs. 0.275") require PCB layout verification. This substitute is suitable for applications where the 1.2 A rating is marginal and thermal performance is critical. Note that RoHS compliance status differs from the main part.

Frequently Asked Questions (FAQ)

Q: Can the 5800-390-RC be used as a direct replacement for the 5800-390?

A: Yes. The 5800-390-RC is electrically and mechanically identical to the 5800-390, with the same inductance (39 µH), current rating (1.2 A), DC resistance (97 mOhm), and physical dimensions. The primary difference is product status (active vs. obsolete) and improved RoHS3 compliance.

Q: What are the key differences between the 5800-390 and the 2474-20L?

A: Both parts share the same 39 µH inductance value and ferrite core material. The 2474-20L offers higher current rating (2.05 A vs. 1.2 A), lower DC resistance (84 mOhm vs. 97 mOhm), and extended temperature range (-55°C to 125°C vs. -55°C to 105°C). However, the 2474-20L uses molded construction instead of drum core wirewound, has slightly different dimensions (0.240" diameter vs. 0.275"), and carries ±15% inductance tolerance instead of ±10%.

Q: Is the 2474-20L suitable for all applications using the 5800-390?

A: The 2474-20L is functionally compatible for applications where the 1.2 A current rating is not a limiting factor. The lower DC resistance and higher saturation margin provide performance benefits. However, dimensional differences require PCB layout verification, and the wider inductance tolerance (±15%) may affect circuits with tight inductance specifications.

Q: What is the impact of the different core construction (drum core vs. molded)?

A: Drum core wirewound and molded constructions differ in mechanical robustness and thermal characteristics. The molded design of the 2474-20L provides enhanced mechanical protection and consistent thermal performance. Both constructions are unshielded ferrite designs suitable for general-purpose filtering applications. Selection depends on mechanical stress and thermal environment requirements.

Q: Are there RoHS compliance considerations when selecting a substitute?

A: The 5800-390 is RoHS non-compliant, while the 5800-390-RC is ROHS3 compliant. The 2474-20L is RoHS non-compliant. For new designs or applications subject to RoHS regulations, the 5800-390-RC is the appropriate choice. For legacy system maintenance where RoHS compliance is not mandated, all three parts are functionally equivalent.

Q: Can the 2474-20L be used in space-constrained PCB layouts?

A: The 2474-20L has a smaller diameter (0.240" vs. 0.275") but slightly greater length (0.740" vs. 0.700"). PCB layout verification is required to confirm fit within the available footprint. The axial lead configuration remains compatible with through-hole mounting.