Bourns 5900-152 Equivalent & Substitute Parts

Part Overview

The Bourns 5900-152 is a 1.5 mH unshielded drum core wirewound inductor rated for 560 mA continuous current with a maximum DC resistance of 1.33 Ohm. This through-hole axial component operates across the temperature range of -55°C to 105°C and is designed for general-purpose filtering and energy storage applications in electronic circuits.

The 5900-152 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this component.

Substiute Parts

5900-152

Bourns Inc.In Stock: 11825900-152 Datasheet

Current PartRFQ

4590-155K

API Delevan Inc.In Stock: 8514590-155K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 5900-152 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1.5 mH ±10%
• Core type: Ferrite drum core, wirewound
• Shielding configuration: Unshielded
• Mounting: Through hole, axial package
• Inductance test frequency: 1 kHz

Secondary Compatibility Factors:

• Current rating must meet or exceed the application requirement (560 mA minimum)
• DC resistance must be compatible with circuit impedance specifications
• Operating temperature range must encompass the application environment
• Physical dimensions must fit the PCB layout constraints
• Saturation current characteristics must support transient conditions

The API Delevan 4590-155K qualifies as a substitute based on matching inductance value, core material, shielding type, mounting configuration, and package style. Differences in current rating, DC resistance, saturation current, and operating temperature range must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 4590-155K is available as an active product with current manufacturing support, addressing the supply discontinuation of the obsolete Bourns 5900-152. Both components share identical inductance specifications, core material, and package configuration, establishing functional equivalence for applications requiring 1.5 mH ferrite drum core inductors in through-hole axial format.

The 4590-155K provides a higher continuous current rating (750 mA versus 560 mA) and lower DC resistance (1.18 Ohm versus 1.33 Ohm), offering improved thermal performance and reduced power dissipation in equivalent circuit positions. The extended operating temperature range (-55°C to 125°C versus -55°C to 105°C) supports applications requiring higher temperature operation.

The saturation current specification differs between the two components (680 mA for the 5900-152 versus 460 mA for the 4590-155K). Applications subject to transient current conditions exceeding 460 mA must account for this parameter difference during design validation.

Physical dimensions are compatible within standard PCB layout tolerances, with negligible differences in diameter (0.002" maximum) and identical axial length.

Both components carry identical RoHS non-compliance and REACH unaffected status, maintaining regulatory consistency with the original design.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 4590-155K directly replace the Bourns 5900-152 in existing designs?

A: Direct substitution is possible when the application current requirement does not exceed 560 mA continuous operation and transient saturation conditions remain below 460 mA. The lower DC resistance of the 4590-155K reduces power dissipation, which is generally beneficial. Verify that the extended temperature rating of the substitute does not conflict with thermal management assumptions in the original design.

Q: What is the significance of the different saturation current ratings?

A: Saturation current defines the threshold at which the inductor's magnetic core begins to saturate, causing inductance to degrade and impedance to decrease. The 5900-152 saturates at 680 mA, while the 4590-155K saturates at 460 mA. Applications experiencing transient currents between 460 mA and 680 mA will exhibit different inductor behavior with the substitute part. Circuit simulation or testing is necessary to confirm acceptable performance under these conditions.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: Yes. The diameter difference is 0.002 inches (0.05 mm), which is negligible for standard through-hole component placement. The axial length is identical at 0.900 inches (22.86 mm). Standard PCB footprints designed for the 5900-152 will accommodate the 4590-155K without modification.

Q: What compliance differences exist between these components?

A: Both components are RoHS non-compliant and REACH unaffected. No compliance advantage exists with substitution. If RoHS compliance is required for the application, neither component is suitable without design modification.

Q: Why does the 4590-155K have a higher current rating but lower saturation current?

A: These parameters measure different characteristics. Continuous current rating reflects thermal limits under steady-state operation, while saturation current reflects magnetic core performance under transient conditions. The 4590-155K achieves higher continuous current capacity through improved thermal design while using a core material with different saturation characteristics.