Bourns 5900-683 68mH Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5900-683 is a 68 mH unshielded drum core wirewound inductor rated for 80 mA continuous current with a maximum DC resistance of 58 Ohm. 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 5900-683 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

5900-683

Bourns Inc.In Stock: 10915900-683 Datasheet

Current PartRFQ

4590-686K

API Delevan Inc.In Stock: 14794590-686K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5900-683 is determined by the following critical parameters:

• Inductance Value: Must match 68 mH at 1 kHz test frequency with ±10% tolerance
• Core Type & Shielding: Must be ferrite drum core, unshielded construction
• Mounting & Package: Must be through-hole axial configuration
• Current Handling: Substitute must support minimum 80 mA continuous current rating
• DC Resistance: Must not exceed 58 Ohm maximum
• Temperature Range: Must cover the operating window of -55°C to 105°C

The API Delevan 4590-686K meets these substitution criteria. Both components share identical inductance specifications, core material, shielding configuration, and mounting type. The substitute provides superior current handling (110 mA vs. 80 mA) and lower DC resistance (52.8 Ohm vs. 58 Ohm), with an extended upper temperature limit of 125°C.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-686K is a direct functional substitute for the obsolete Bourns 5900-683. The substitute maintains electrical equivalence across all critical parameters: identical inductance value, tolerance, core material, and shielding configuration. Physical dimensions are virtually identical, ensuring mechanical compatibility in existing through-hole layouts.

The API Delevan component offers performance advantages including higher current rating capacity and lower DC resistance, which reduce power dissipation in the circuit. The extended operating temperature range to 125°C provides additional thermal margin for applications operating at elevated ambient conditions.

Both components carry identical RoHS non-compliance and REACH unaffected status. The substitute is currently in active production with confirmed inventory availability, eliminating supply chain risk associated with the obsolete Bourns part.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-686K be used as a direct replacement for the Bourns 5900-683?

A: Yes. Both inductors share identical inductance values (68 mH), tolerance (±10%), core material (ferrite), shielding (unshielded), and axial through-hole mounting configuration. Physical dimensions are equivalent, supporting direct board-level substitution.

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

A: The API Delevan substitute provides higher current rating (110 mA vs. 80 mA), lower DC resistance (52.8 Ohm vs. 58 Ohm), and extended upper operating temperature (125°C vs. 105°C). These represent performance improvements over the original part.

Q: Are there any compliance or certification differences?

A: Both components share identical RoHS and REACH status. No compliance barriers exist to substitution.

Q: Will the slightly larger diameter of the substitute (0.455" vs. 0.453") cause mechanical issues?

A: No. The 0.002" diameter difference is negligible and falls within standard through-hole component tolerances. Board layout compatibility is maintained.

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

A: The Bourns 5900-683 has a saturation current of 100 mA, while the API Delevan 4590-686K saturates at 70 mA. For applications operating below 70 mA, this difference is not a limiting factor. Applications requiring operation above 70 mA should verify saturation performance requirements against circuit specifications.