Bourns 5900-102 Equivalent & Substitute Parts

Part Overview

The Bourns 5900-102 is a 1 mH unshielded drum core wirewound inductor rated for 710 mA with a maximum DC resistance of 830 mOhm. This through-hole axial component operates across a temperature range of -55°C to 105°C and is designed for applications requiring fixed inductance in compact form factors.

The 5900-102 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance or redesign initiatives.

Substiute Parts

5900-102

Bourns Inc.In Stock: 8845900-102 Datasheet

Current PartRFQ

5900-102-RC

Bourns Inc.In Stock: 10445900-102-RC Datasheet

DirectRFQ

4590-105K

API Delevan Inc.In Stock: 10954590-105K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5900-102 are identified based on strict electrical and mechanical parameter alignment:

Direct Substitute (Packaging Variant): The 5900-102-RC maintains identical electrical specifications: 1 mH inductance, ±10% tolerance, 710 mA current rating, 830 mA saturation current, and 830 mOhm maximum DC resistance. The primary distinction is packaging format (tray versus bulk) and product status (active versus obsolete). This part is functionally interchangeable for all circuit applications.

Similar Substitute (Parameter Tolerance): The API Delevan 4590-105K shares the core electrical characteristics: 1 mH inductance, ±10% tolerance, ferrite drum core construction, and unshielded axial configuration. However, this part exhibits higher current rating (890 mA) and saturation current (560 mA), with marginally higher DC resistance (844 mOhm). The operating temperature range extends to 125°C. These differences position it as a suitable substitute where higher current capacity or extended temperature operation is acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): The 5900-102-RC is the primary substitute. It delivers identical electrical performance and mechanical compatibility while offering active product status and ROHS3 compliance. Selection of this part eliminates obsolescence risk and aligns with modern regulatory requirements.

For Enhanced Performance Applications: The API Delevan 4590-105K accommodates higher current loads (890 mA versus 710 mA) and extended operating temperatures (125°C maximum). This part is suitable for applications where the original design margin permits higher current capacity or where thermal environment exceeds 105°C. The saturation current specification (560 mA) differs from the original part and must be evaluated against circuit requirements.

Compliance Considerations: The 5900-102-RC provides ROHS3 compliance, supporting modern procurement and environmental standards. The 4590-105K maintains RoHS non-compliant status, consistent with the original part. Selection should align with end-product regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5900-102-RC be used as a direct drop-in replacement for the 5900-102?

A: Yes. The 5900-102-RC maintains identical inductance (1 mH), current rating (710 mA), saturation current (830 mA), DC resistance (830 mOhm), core material (ferrite), shielding (unshielded), operating temperature range (-55°C to 105°C), and physical dimensions (0.453" Dia x 0.900" L). The only differences are packaging format and product status. No circuit modifications are required.

Q: What are the key differences between the 5900-102 and the 4590-105K?

A: Both parts share 1 mH inductance, ±10% tolerance, ferrite drum core construction, and unshielded axial configuration. The 4590-105K provides higher current rating (890 mA versus 710 mA) and extended operating temperature (125°C versus 105°C maximum). However, the saturation current differs (560 mA versus 830 mA), and DC resistance is marginally higher (844 mOhm versus 830 mOhm). Physical dimensions are nearly identical (0.455" versus 0.453" diameter).

Q: Is the 4590-105K suitable for all applications using the 5900-102?

A: The 4590-105K is suitable where circuit current requirements do not exceed 890 mA and where the saturation current specification of 560 mA is acceptable. The higher current rating and extended temperature range make it compatible with most legacy designs. However, applications operating near the original 710 mA specification or requiring the original saturation current of 830 mA should prioritize the 5900-102-RC.

Q: What packaging options are available?

A: The 5900-102 is supplied in bulk packaging. The 5900-102-RC is available in tray packaging. The 4590-105K is supplied in bulk packaging. Packaging selection depends on procurement volume and handling requirements.

Q: Are there RoHS compliance implications when substituting these parts?

A: The 5900-102-RC is ROHS3 compliant, while both the original 5900-102 and the 4590-105K are RoHS non-compliant. If the end product requires RoHS compliance, the 5900-102-RC is the appropriate selection.