Bourns 5900-5R6 Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5900-5R6 is a 5.6 µH unshielded drum core wirewound inductor rated for 5.4 A continuous current with 15 mOhm maximum DC resistance. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors.

The 5900-5R6 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

5900-5R6

Bourns Inc.In Stock: 10875900-5R6 Datasheet

Current PartRFQ

4590-562K

API Delevan Inc.In Stock: 8954590-562K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5900-5R6 is determined by the following critical parameters:

• Inductance Value: Must match 5.6 µH at 1 kHz test frequency
• Inductance Tolerance: ±10% specification must be maintained
• Core Type & Shielding: Ferrite drum core, unshielded construction
• Mounting Configuration: Through-hole axial package
• Physical Dimensions: Compatible with 0.453" diameter and 0.900" length envelope
• Current Handling: Continuous current rating must meet or exceed application requirements
• DC Resistance: Lower DCR values indicate improved efficiency and reduced losses
• Operating Temperature: Must support -55°C to 105°C range or equivalent

The API Delevan 4590-562K meets these core substitution criteria with matching inductance, tolerance, core type, mounting style, and compatible physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-562K qualifies as a direct substitute for the Bourns 5900-5R6 based on matching inductance specification, tolerance, core construction, and through-hole axial package configuration.

The 4590-562K offers performance advantages: higher continuous current rating (7.77 A versus 5.4 A), lower DC resistance (11 mOhm versus 15 mOhm), and extended operating temperature range (-55°C to 125°C versus -55°C to 105°C). These characteristics provide improved thermal performance and current handling capacity within the same physical envelope.

Both parts maintain identical RoHS and REACH compliance status. The 4590-562K carries active product status, ensuring ongoing availability and supply chain support compared to the obsolete 5900-5R6.

Physical dimensions are compatible within standard PCB assembly tolerances (0.455" versus 0.453" diameter, 0.900" length identical).

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-562K replace the Bourns 5900-5R6 in existing designs?

A: Yes. Both inductors share identical inductance value (5.6 µH), tolerance (±10%), core type (ferrite drum core, unshielded), and through-hole axial package configuration. Physical dimensions are compatible within standard assembly tolerances.

Q: What are the key differences between these two inductors?

A: The 4590-562K provides higher continuous current rating (7.77 A versus 5.4 A), lower DC resistance (11 mOhm versus 15 mOhm), and extended operating temperature range (-55°C to 125°C versus -55°C to 105°C). These represent performance improvements within the same package footprint.

Q: Are there any compliance or certification differences?

A: Both parts maintain identical RoHS non-compliant and REACH Unaffected status. No compliance barriers exist for substitution.

Q: Why is the 5900-5R6 listed as obsolete?

A: Obsolete status indicates the Bourns 5900-5R6 is no longer in active production. The API Delevan 4590-562K remains in active production, providing a viable path for continued supply and design support.

Q: Will the 4590-562K fit the same PCB footprint?

A: Yes. The 4590-562K dimensions (0.455" Dia x 0.900" L) are compatible with the 5900-5R6 footprint (0.453" Dia x 0.900" L). The 0.002" diameter difference is within standard through-hole assembly tolerances.

Q: Does lower DC resistance affect circuit behavior?

A: Lower DC resistance (11 mOhm versus 15 mOhm) reduces resistive losses and heat generation. This represents an improvement for applications sensitive to power dissipation or thermal performance.