Bourns 9230-26 Equivalent & Substitute Parts

Part Overview

The Bourns 9230-26 is a 1.8 µH unshielded molded inductor rated for 640 mA with a maximum DC resistance of 300mOhm, designed for through-hole axial mounting. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

9230-26

Bourns Inc.In Stock: 10489230-26 Datasheet

Current PartRFQ

9250A-182-RC

Bourns Inc.In Stock: 12849250A-182-RC Datasheet

SimilarRFQ

1025-26K

API Delevan Inc.In Stock: 8591025-26K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9230-26 is determined by the following critical parameters:

• Inductance Value: Must be 1.8 µH with ±10% tolerance
• Mounting Type: Must be through-hole axial configuration
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• Current Rating: Must meet or exceed 640 mA requirement
• DC Resistance: Must not exceed 300mOhm maximum

Two substitute parts meet these criteria with varying electrical and mechanical characteristics:

Bourns 9250A-182-RC qualifies as a direct substitute with improved electrical performance (lower DCR, higher current rating) and active product status, though with increased physical dimensions and shielded construction.

API Delevan 1025-26K qualifies as a substitute with identical physical dimensions and DCR specification, though with reduced current rating (480 mA) and lower maximum operating temperature (105°C).

Parameter Comparison

Engineering Selection Recommendations

Bourns 9250A-182-RC is the preferred substitute for new designs and ongoing procurement. It maintains full temperature range compatibility (-55°C ~ 125°C), exceeds the current rating requirement (775 mA vs. 640 mA), and provides superior DC resistance performance (140mOhm vs. 300mOhm). The component carries active product status and ROHS3 compliance. Physical dimensions are larger; PCB layout verification is required.

API Delevan 1025-26K is suitable for applications where physical space constraints are critical, as it maintains identical dimensions to the original 9230-26. It meets the 640 mA current requirement with equivalent DC resistance and unshielded construction. However, the maximum operating temperature is limited to 105°C, and RoHS compliance status is non-compliant. This part is appropriate only for designs operating within the -55°C ~ 105°C range.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 9250A-182-RC be used as a direct replacement in existing PCB layouts?

A: Physical dimensions differ significantly. The 9250A-182-RC measures 0.162" Dia x 0.410" L compared to the original 0.095" Dia x 0.250" L. PCB layout modification is required. Verify clearance around component mounting location.

Q: What is the impact of the shielded construction in the Bourns 9250A-182-RC?

A: Shielding reduces electromagnetic interference emission and susceptibility. This is beneficial in noise-sensitive applications but may affect circuit behavior in designs optimized for unshielded inductors. Electrical performance testing is recommended for critical applications.

Q: Is the API Delevan 1025-26K suitable for high-temperature applications?

A: The 1025-26K is rated to 105°C maximum, which is 20°C below the original 9230-26 specification. Applications requiring operation at 105°C to 125°C must use the Bourns 9250A-182-RC.

Q: What are the compliance implications of selecting each substitute?

A: The Bourns 9250A-182-RC is ROHS3 compliant, meeting modern regulatory requirements. Both the original 9230-26 and API Delevan 1025-26K are RoHS non-compliant. For new designs subject to RoHS regulations, the 9250A-182-RC is the only compliant option.

Q: How does the lower current rating of the API Delevan 1025-26K affect circuit design?

A: The 1025-26K is rated for 480 mA versus the original 640 mA specification. Applications requiring sustained current above 480 mA must use the Bourns 9250A-182-RC (775 mA rating) to maintain design margin and reliability.