Bourns 5900-101 100µH Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 5900-101 is a 100µH unshielded drum core wirewound inductor rated for 2.2A continuous current with 86mOhm maximum DC resistance. This through-hole axial component operates across -55°C to 105°C and is designed for general-purpose filtering and energy storage applications in electronic circuits.

The 5900-101 carries an obsolete product status. Identifying equivalent and substitute parts ensures design continuity and maintains supply chain reliability for legacy systems or new designs requiring compatible specifications.

Substiute Parts

5900-101

Bourns Inc.In Stock: 9275900-101 Datasheet

Current PartRFQ

5900-101-RC

Bourns Inc.In Stock: 39115900-101-RC Datasheet

DirectRFQ

4590-104K

API Delevan Inc.In Stock: 9344590-104K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5900-101 are classified based on electrical and mechanical compatibility within the following criteria:

Direct Equivalents maintain identical electrical specifications (100µH inductance, ±10% tolerance, 2.2A current rating, 86mOhm DCR) and mechanical form factor (axial through-hole, 0.453" diameter × 0.900" length). Packaging differences do not affect functional compatibility.

Similar Substitutes share the same inductance value, tolerance, core type, and mounting configuration but may vary in current rating, DC resistance, saturation current, or operating temperature range. These parts are electrically compatible when the application's current and thermal requirements fall within the substitute's specifications.

Parameter Comparison

Engineering Selection Recommendations

5900-101-RC (Direct Equivalent) is the primary substitute for the obsolete 5900-101. Both parts are manufactured by Bourns Inc. and share identical electrical and mechanical specifications. The 5900-101-RC is currently in active production status with ROHS3 compliance, making it suitable for new designs and legacy system replacements. Packaging differs (tray versus standard), but this does not affect circuit performance.

4590-104K (Similar Substitute) from API Delevan Inc. provides an alternative when the 5900-101-RC is unavailable. This part maintains the same 100µH inductance and ±10% tolerance but offers higher current rating (2.815A versus 2.2A) and lower DC resistance (84mOhm versus 86mOhm). The operating temperature range extends to 125°C, providing thermal margin in high-temperature applications. Physical dimensions are nearly identical (0.455" diameter versus 0.453"). The 4590-104K is active production status but carries non-compliant RoHS status, requiring evaluation against design compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5900-101-RC directly replace the 5900-101 in existing designs?

A: Yes. The 5900-101-RC is electrically and mechanically identical to the 5900-101. Both parts feature 100µH inductance, ±10% tolerance, 2.2A current rating, and 86mOhm maximum DC resistance. The only difference is packaging format (tray versus standard) and product status (active versus obsolete). No circuit modifications are required.

Q: When is the 4590-104K appropriate as a substitute?

A: The 4590-104K is suitable when the primary substitutes are unavailable and the application can accommodate its specifications. The higher current rating (2.815A) and lower DC resistance (84mOhm) make it compatible with circuits designed for the 5900-101. Verify that the extended operating temperature range (-55°C to 125°C) and non-compliant RoHS status align with your design requirements.

Q: Are there mechanical compatibility concerns between these parts?

A: Physical dimensions are nearly identical across all three parts. The 5900-101 and 5900-101-RC are 0.453" diameter × 0.900" length. The 4590-104K is 0.455" diameter × 0.900" length—a 0.002" difference in diameter that does not affect through-hole mounting or PCB layout. All three use axial through-hole configuration.

Q: What compliance differences exist between these parts?

A: The 5900-101-RC is ROHS3 compliant and recommended for designs requiring RoHS certification. Both the 5900-101 and 4590-104K are RoHS non-compliant. Verify compliance requirements with your design specifications and regional regulations before final part selection.

Q: How do saturation current differences affect substitution?

A: The 5900-101 and 5900-101-RC both saturate at 2.7A. The 4590-104K saturates at 1.7A. In applications where the inductor experiences transient currents above 1.7A, the 4590-104K may saturate earlier than the original part. Evaluate circuit peak current requirements to ensure the substitute's saturation rating is adequate.