Bourns 5800-271 270µH Axial Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5800-271 is a 270 µH unshielded drum core wirewound inductor rated for 500 mA continuous current with a maximum DC resistance of 650 mOhm. Designed for through-hole axial mounting, this component operates across the industrial temperature range of -55°C to 105°C. The part is currently classified as obsolete, making identification of suitable equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

5800-271

Bourns Inc.In Stock: 7715800-271 Datasheet

Current PartRFQ

5800-271-RC

Bourns Inc.In Stock: 11595800-271-RC Datasheet

DirectRFQ

2474-30L

API Delevan Inc.In Stock: 9392474-30L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 5800-271 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 270 µH (exact match required)
• Core material: Ferrite (unshielded)
• Mounting type: Through hole axial configuration
• Test frequency: 1 kHz

Secondary Compatibility Factors:

• Current rating must meet or exceed 500 mA minimum
• DC resistance should not significantly exceed 650 mOhm to maintain circuit performance
• Operating temperature range must encompass the application requirements
• Tolerance specification must be compatible with circuit design margins

Two substitute parts meet these criteria with varying degrees of direct equivalence and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Bourns 5800-271-RC is the primary direct equivalent. This part maintains identical electrical specifications (270 µH, ±10% tolerance, 500 mA rating, 650 mOhm DCR) and physical dimensions as the obsolete 5800-271. The critical distinction is product status: the 5800-271-RC is active and carries RoHS3 compliance certification, addressing regulatory requirements for new designs and production. Packaging differs (tray versus unspecified), but electrical and mechanical compatibility is complete. This substitution requires no circuit redesign.

API Delevan 2474-30L is a similar alternative with trade-offs. It maintains the 270 µH inductance value and unshielded ferrite core construction but introduces specification differences: higher current rating (800 mA versus 500 mA), lower DC resistance (557 mOhm versus 650 mOhm), wider tolerance (±15% versus ±10%), and extended temperature range (-55°C to 125°C). Physical dimensions vary slightly (0.240" diameter versus 0.275" diameter). The saturation current specification (390 mA) is lower than the main part (700 mA), which may impact performance in applications requiring headroom above the 500 mA rating. This substitution is suitable for applications where the lower DCR and higher continuous current rating provide circuit benefits, provided tolerance and saturation characteristics are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the 5800-271-RC be used as a direct replacement for the 5800-271?

A: Yes. The 5800-271-RC is electrically and mechanically identical to the 5800-271. All critical parameters—inductance, tolerance, current rating, DC resistance, core material, and physical dimensions—match exactly. The primary advantage is active product status and RoHS3 compliance. No circuit modifications are required.

Q: What are the limitations of using the API Delevan 2474-30L as a substitute?

A: The 2474-30L maintains the 270 µH inductance and ferrite core but differs in several specifications. The tolerance is wider (±15% versus ±10%), which may affect circuit accuracy. The saturation current is significantly lower (390 mA versus 700 mA), reducing the margin above the 500 mA continuous rating. Physical dimensions are slightly smaller (0.240" diameter versus 0.275" diameter), which may affect board layout compatibility. These differences require circuit validation before implementation.

Q: Are there RoHS compliance considerations for these substitutes?

A: The original 5800-271 is RoHS non-compliant. The 5800-271-RC is RoHS3 compliant, making it suitable for applications with regulatory requirements. The 2474-30L is RoHS non-compliant. For new designs subject to RoHS regulations, the 5800-271-RC is the appropriate choice.

Q: Do the physical dimensions affect PCB layout compatibility?

A: The 5800-271-RC has identical dimensions to the 5800-271 (0.275" diameter x 0.700" length), ensuring direct board layout compatibility. The 2474-30L has slightly different dimensions (0.240" diameter x 0.740" length), which may require minor footprint adjustments but remains compatible with standard through-hole axial mounting.

Q: Which substitute should be selected for new production?

A: The Bourns 5800-271-RC is the recommended choice for new production. It provides complete electrical and mechanical equivalence with the obsolete 5800-271 while offering active product status and RoHS3 compliance. The API Delevan 2474-30L is suitable only when its specific performance characteristics (lower DCR, higher continuous current rating, extended temperature range) provide circuit advantages and when its specification differences (wider tolerance, lower saturation current) are acceptable.