Bourns 9230-50 Fixed Inductor: Equivalent & Substitute Parts

Part Overview

The Bourns 9230-50 is an 18 µH unshielded molded inductor rated for 195 mA with a maximum DC resistance of 3.1 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part operates across a temperature range of -55°C to 125°C and is suitable for applications requiring fixed inductance values in the microhenry range.

Substiute Parts

9230-50

Bourns Inc.In Stock: 10409230-50 Datasheet

Current PartRFQ

1025-50K

API Delevan Inc.In Stock: 28441025-50K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9230-50 is determined by strict alignment of the following electrical and mechanical parameters:

• Inductance Value: Must be 18 µH with ±10% tolerance
• Current Rating: Substitute must support minimum 195 mA continuous current
• DC Resistance: Maximum 3.1 Ohm at rated current
• Q Factor: 50 @ 2.5 MHz or equivalent performance
• Self-Resonant Frequency: Minimum 30 MHz to maintain performance in target frequency bands
• Operating Temperature: Must cover -55°C to 125°C range or be compatible with application limits
• Mounting Configuration: Through-hole axial package only
• Physical Dimensions: 0.095" Dia x 0.250" L (2.41mm x 6.35mm)
• Shielding Type: Unshielded construction

The API Delevan 1025-50K meets these substitution criteria with the exception of current rating (149 mA vs. 195 mA) and maximum operating temperature (105°C vs. 125°C). These differences must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1025-50K is an active product with equivalent electrical characteristics for inductance, tolerance, DC resistance, and Q factor performance. The primary differences are current rating (149 mA vs. 195 mA) and maximum operating temperature (105°C vs. 125°C). Selection of the 1025-50K is appropriate when application current requirements do not exceed 149 mA and operating temperature remains within -55°C to 105°C. Both parts share identical RoHS non-compliance status and are subject to the same regulatory classifications (ECCN: EAR99, HTSUS: 8504.50.8000).

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1025-50K directly replace the Bourns 9230-50 in all applications?

A: Direct replacement is possible only when application current requirements do not exceed 149 mA and maximum operating temperature does not exceed 105°C. Applications requiring the full 195 mA current rating or operation above 105°C require alternative solutions.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical axial package dimensions of 0.095" Dia x 0.250" L (2.41mm x 6.35mm), ensuring mechanical compatibility in through-hole PCB layouts.

Q: What is the significance of the self-resonant frequency difference?

A: The Bourns 9230-50 has a self-resonant frequency of 32 MHz compared to 30 MHz for the API Delevan 1025-50K. Both values are sufficient for standard inductor applications in the specified frequency range, with the 2 MHz difference having minimal impact on typical circuit performance.

Q: Do both parts have identical Q factor performance?

A: Yes. Both parts are specified at Q = 50 @ 2.5 MHz, indicating equivalent performance in terms of quality factor at the test frequency.

Q: What compliance considerations apply to both parts?

A: Both parts are RoHS non-compliant and REACH unaffected. They share identical ECCN (EAR99) and HTSUS (8504.50.8000) classifications for export and tariff purposes.