Bourns 5900-682 6.8 mH Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5900-682 is a 6.8 mH unshielded drum core wirewound inductor rated for 280 mA continuous current with a maximum DC resistance of 5.4 Ohm. This through-hole axial component operates across the temperature range of -55°C to 105°C and is specified for 1 kHz inductance testing. The part is currently obsolete, making equivalent substitutes necessary for ongoing design requirements and production continuity.

Substiute Parts

5900-682

Bourns Inc.In Stock: 10225900-682 Datasheet

Current PartRFQ

4590-685K

API Delevan Inc.In Stock: 9084590-685K Datasheet

SimilarRFQ

AIAP-03-682K

Abracon LLCIn Stock: 1011AIAP-03-682K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Bourns 5900-682 is determined by the following critical parameters:

• Inductance Value: Must be 6.8 mH with ±10% tolerance
• Current Rating: Substitute must support minimum 280 mA continuous current
• DC Resistance: Maximum 5.4 Ohm specification
• Core Configuration: Drum core or equivalent wirewound construction
• Shielding: Unshielded configuration
• Mounting & Package: Through-hole axial mounting required
• Temperature Range: Operating range must encompass -55°C to 105°C minimum

The substitute parts listed below meet these electrical and mechanical requirements and are available in active production status.

Parameter Comparison

Engineering Selection Recommendations

API Delevan 4590-685K: This substitute provides higher current rating capability (340 mA versus 280 mA) and extended operating temperature range to 125°C. DC resistance is marginally higher at 5.75 Ohm. Product status is active with current availability. RoHS non-compliance matches the original part specification.

Abracon AIAP-03-682K: This substitute meets all electrical requirements with current rating of 322 mA and DC resistance of 5.69 Ohm. Operating temperature range extends to 125°C. This part carries ROHS3 compliance certification, providing environmental regulatory advantage over the original obsolete part. Product status is active with confirmed inventory availability.

Both substitutes maintain the required 6.8 mH inductance value, ±10% tolerance, unshielded configuration, and through-hole axial mounting. Selection between these options depends on RoHS compliance requirements and thermal operating envelope needs for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-685K or Abracon AIAP-03-682K be used as direct replacements for the Bourns 5900-682?

A: Both parts meet the core electrical specifications: 6.8 mH inductance, ±10% tolerance, current ratings exceeding 280 mA, DC resistance within acceptable range, and identical through-hole axial mounting. Physical dimensions are equivalent within manufacturing tolerances. Substitution is electrically and mechanically valid.

Q: What is the significance of the higher current ratings in the substitute parts?

A: The API Delevan 4590-685K (340 mA) and Abracon AIAP-03-682K (322 mA) both exceed the original 280 mA specification. This provides design margin and allows the substitutes to operate safely in applications requiring the original part's current capacity without thermal stress.

Q: How do the DC resistance differences affect circuit performance?

A: The original part specifies 5.4 Ohm maximum. Substitutes measure 5.75 Ohm (API Delevan) and 5.69 Ohm (Abracon). These differences are within typical manufacturing tolerances for wirewound inductors and will produce negligible impact on circuit behavior in most applications. Verify DC resistance impact for precision analog or high-Q filter circuits.

Q: What is the advantage of ROHS3 compliance in the Abracon part?

A: ROHS3 compliance indicates the Abracon AIAP-03-682K meets current environmental regulations for restricted substances. This is relevant for applications subject to regulatory requirements or for long-term supply chain sustainability. The original Bourns part and API Delevan substitute are both RoHS non-compliant.

Q: Are the physical dimensions identical across all three parts?

A: Dimensions are equivalent within standard manufacturing tolerances. Bourns 5900-682: 0.453" Dia × 0.900" L. API Delevan 4590-685K: 0.455" Dia × 0.900" L. Abracon AIAP-03-682K: 0.449" Dia × 0.902" L. All fit standard through-hole axial component footprints without modification.

Q: Which substitute should be selected for new designs?

A: Selection depends on specific application requirements. For RoHS-regulated applications, the Abracon AIAP-03-682K is the appropriate choice. For applications without RoHS requirements, either substitute is valid. Both offer active product status and confirmed inventory availability.