Bourns 5900-6R8 Equivalent & Substitute Parts

Part Overview

The Bourns 5900-6R8 is a 6.8 µH unshielded drum core wirewound inductor rated for 5.2 A continuous current with a maximum DC resistance of 16 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 values in compact form factors.

The 5900-6R8 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 inductor.

Substiute Parts

5900-6R8

Bourns Inc.In Stock: 8375900-6R8 Datasheet

Current PartRFQ

4590-682K

API Delevan Inc.In Stock: 10464590-682K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5900-6R8 is determined by the following critical parameters:

• Inductance Value: Must match 6.8 µH at 1 kHz test frequency
• Tolerance: Must be ±10% or tighter
• Core Type & Shielding: Must be ferrite drum core, unshielded construction
• Mounting & Package: Must be through-hole axial configuration
• Current Rating: Substitute must support minimum 5.2 A continuous current
• DC Resistance: Substitute DCR must not exceed 16 mOhm maximum
• Operating Temperature Range: Substitute must cover or exceed -55°C to 105°C

The API Delevan 4590-682K meets these substitution criteria with equivalent inductance, tolerance, core type, shielding, mounting, and package specifications. The substitute provides superior electrical performance with higher current rating and lower DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-682K is a direct functional substitute for the obsolete Bourns 5900-6R8. Both components share identical inductance values, tolerance specifications, core materials, and mounting configurations. The substitute maintains compatibility with existing through-hole PCB layouts given the negligible dimensional differences (0.002" diameter variance, identical length).

The API Delevan part offers enhanced performance characteristics: 46% higher current rating (7.6 A versus 5.2 A) and 31% lower DC resistance (11 mOhm versus 16 mOhm maximum). These improvements provide additional design margin and reduced power dissipation in equivalent applications.

Both components carry identical RoHS non-compliance and REACH unaffected status. The substitute operates across an extended temperature range (-55°C to 125°C versus -55°C to 105°C), providing broader environmental compatibility.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-682K directly replace the Bourns 5900-6R8 in existing designs?

A: Yes. Both inductors share identical 6.8 µH inductance values, ±10% tolerance, ferrite drum core construction, unshielded configuration, and through-hole axial packaging. Physical dimensions are virtually identical (0.002" diameter difference). The substitute meets or exceeds all electrical specifications of the original component.

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

A: The primary differences are current rating (7.6 A versus 5.2 A), DC resistance (11 mOhm versus 16 mOhm), operating temperature range (-55°C to 125°C versus -55°C to 105°C), and product status (active versus obsolete). The substitute provides superior electrical performance and extended environmental operating range.

Q: Are there any compliance or certification differences?

A: Both components carry identical RoHS non-compliance and REACH unaffected designations. No compliance advantage exists between the two parts.

Q: Will the substitute fit existing PCB layouts designed for the Bourns 5900-6R8?

A: Yes. The axial package dimensions are functionally equivalent. The 0.002" diameter variance and identical 0.900" length ensure compatibility with existing through-hole footprints and spacing requirements.

Q: What is the saturation current difference between these parts?

A: The Bourns 5900-6R8 has a saturation current of 10.8 A, while the API Delevan 4590-682K has a saturation current of 6.3 A. Design applications must verify that operating current levels remain below the saturation threshold of the selected substitute.