Bourns 5800-270 27µH Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5800-270 is a 27µH unshielded drum core wirewound inductor rated for 1.5A continuous current with a maximum DC resistance of 66mOhm. This through-hole axial component operates across the industrial temperature range of -55°C to 105°C and is currently classified as obsolete. Due to its discontinued status, equivalent and substitute parts are necessary for ongoing production support and design continuity.

Substiute Parts

5800-270

Bourns Inc.In Stock: 7725800-270 Datasheet

Current PartRFQ

5800-270-RC

Bourns Inc.In Stock: 10315800-270-RC Datasheet

DirectRFQ

2474-18L

API Delevan Inc.In Stock: 10792474-18L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 5800-270 is determined by the following critical parameters: inductance value (27µH), core material (ferrite), mounting configuration (through-hole axial), and operating temperature range. The substitute parts are grouped into two categories:

Direct Equivalent: Parts maintaining identical electrical specifications and physical form factor, differing only in packaging or compliance status.

Functional Equivalent: Parts with the same inductance and core type but with variations in current rating, DC resistance, or temperature range that remain within acceptable application tolerances.

The key parameters governing substitution are inductance (27µH ±tolerance), current rating capability, DC resistance, and temperature operating range. Shielding type (unshielded) and core construction (ferrite drum core or molded) must remain consistent with the original design intent.

Parameter Comparison

Engineering Selection Recommendations

5800-270-RC (Bourns Inc.): This is the direct equivalent replacement for the obsolete 5800-270. It maintains identical electrical specifications (27µH, ±10% tolerance, 1.5A rating, 66mOhm DCR) and physical dimensions. The primary advantage is active product status and RoHS3 compliance, making it suitable for new designs and production environments with regulatory requirements. Packaging differs (tray vs. original), but electrical performance is equivalent.

2474-18L (API Delevan Inc.): This part provides functional equivalence with the same 27µH inductance and ferrite core construction. It offers higher current rating (2.25A vs. 1.5A) and extended temperature range (-55°C to 125°C vs. -55°C to 105°C). However, it features a molded core construction rather than drum core wirewound, has slightly higher DC resistance (70mOhm vs. 66mOhm), wider inductance tolerance (±15% vs. ±10%), and different physical dimensions (0.240" Dia vs. 0.275" Dia). This part is suitable for applications where higher current capacity or extended temperature operation is beneficial, provided PCB layout accommodates the dimensional variation.

Selection between 5800-270-RC and 2474-18L depends on compliance requirements and application constraints. For direct replacement with regulatory compliance, use 5800-270-RC. For applications requiring higher current margin or extended temperature operation, evaluate 2474-18L against specific circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5800-270-RC be used as a direct drop-in replacement for the 5800-270?

A: Yes. The 5800-270-RC is electrically and mechanically identical to the 5800-270, with the same inductance (27µH), current rating (1.5A), DC resistance (66mOhm), and physical dimensions (0.275" Dia x 0.700" L). The only differences are packaging format (tray vs. original) and product status (active vs. obsolete). It is a direct equivalent.

Q: What are the key differences between the 5800-270-RC and the 2474-18L?

A: The primary differences are: (1) core construction—5800-270-RC uses drum core wirewound while 2474-18L uses molded construction; (2) current rating—2474-18L is rated for 2.25A versus 1.5A; (3) DC resistance—2474-18L has 70mOhm maximum versus 66mOhm; (4) inductance tolerance—2474-18L is ±15% versus ±10%; (5) temperature range—2474-18L extends to 125°C versus 105°C; (6) physical size—2474-18L is 0.240" Dia versus 0.275" Dia. Both maintain 27µH inductance and ferrite core material.

Q: Is the 2474-18L suitable for applications currently using the 5800-270?

A: The 2474-18L can function in applications designed for the 5800-270 if the circuit tolerates the parameter variations. The higher current rating and extended temperature range are generally beneficial. However, the molded core construction, slightly higher DC resistance, wider inductance tolerance, and different physical dimensions must be evaluated against specific circuit requirements, PCB layout constraints, and performance specifications.

Q: What is the impact of the ±15% inductance tolerance on the 2474-18L compared to the ±10% tolerance of the 5800-270?

A: The wider tolerance on the 2474-18L means the actual inductance value may deviate further from the nominal 27µH specification. In circuits where inductance precision is critical (such as resonant or filtering applications), this wider tolerance may affect performance. Applications with less stringent inductance requirements will not be significantly impacted.

Q: Are there RoHS compliance considerations when selecting a substitute?

A: Yes. The 5800-270-RC is RoHS3 compliant, while both the original 5800-270 and the 2474-18L are RoHS non-compliant. For applications or markets requiring RoHS compliance, the 5800-270-RC is the appropriate choice.

Q: Will the 2474-18L fit in the same PCB footprint as the 5800-270?

A: The 2474-18L has different physical dimensions (0.240" Dia x 0.740" L versus 0.275" Dia x 0.700" L). While both are through-hole axial components, the smaller diameter and slightly longer length may require PCB layout verification. Mechanical fit should be confirmed before design implementation.