Bourns 5900-561 Equivalent & Substitute Parts

Part Overview

The Bourns 5900-561 is a 560 µH unshielded drum core wirewound inductor rated for 1 A continuous current with a maximum DC resistance of 460 mOhm. This through-hole axial component operates across the 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 5900-561 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

5900-561

Bourns Inc.In Stock: 7005900-561 Datasheet

Current PartRFQ

4590-564K

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5900-561 is determined by the following critical parameters:

• Inductance Value: Must be 560 µH ±10%
• Current Rating: Must meet or exceed 1 A continuous rating
• DC Resistance: Must not exceed 460 mOhm to maintain circuit performance
• Core Type: Ferrite drum core construction
• Shielding: Unshielded configuration
• Mounting: Through-hole axial package
• Temperature Range: Must support operation within -55°C to 105°C minimum

The API Delevan 4590-564K meets these substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-564K is a direct functional substitute for the Bourns 5900-561. The substitute part maintains identical inductance and tolerance specifications while providing a higher current rating (1.15 A versus 1 A) and extended operating temperature range (-55°C to 125°C versus -55°C to 105°C). The DC resistance differential of 44 mOhm is within acceptable engineering margins for most applications.

The 4590-564K is currently in active production status, ensuring supply chain availability and long-term component sourcing reliability. Both parts carry equivalent RoHS non-compliance and REACH unaffected certifications. Physical dimensions are compatible with standard through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-564K directly replace the Bourns 5900-561 in existing designs?

A: Yes. The 4590-564K maintains the same inductance value, tolerance, core material, shielding configuration, and axial through-hole package. Physical dimensions are compatible with standard PCB footprints.

Q: What is the significance of the higher current rating on the substitute part?

A: The 4590-564K is rated for 1.15 A continuous current compared to the original 1 A rating. This provides additional thermal margin and is compatible with applications designed for the 5900-561.

Q: Does the 44 mOhm increase in DC resistance affect circuit performance?

A: The DC resistance increase from 460 mOhm to 504 mOhm represents a 9.6% change. For most filtering and energy storage applications, this difference is within acceptable design tolerances. Circuit-specific analysis is required for applications with strict power loss or voltage drop requirements.

Q: Are there any compliance or certification differences between these parts?

A: Both parts carry identical RoHS non-compliance and REACH unaffected certifications. No compliance barriers exist for substitution.

Q: What is the physical footprint compatibility?

A: Both inductors use axial through-hole packages with nearly identical dimensions (0.453" to 0.455" diameter, 0.900" length). Standard PCB hole spacing accommodates both components without modification.