Bourns 9230-90 Equivalent & Substitute Parts

Part Overview

The Bourns 9230-90 is a 820 µH unshielded molded inductor rated for 40 mA maximum current with 65Ohm maximum DC resistance. This through-hole axial component operates across -55°C to 125°C and features ferrite core construction with ±10% inductance tolerance.

The 9230-90 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

9230-90

Bourns Inc.In Stock: 8199230-90 Datasheet

Current PartRFQ

1025-90K

API Delevan Inc.In Stock: 10341025-90K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9230-90 is determined by the following critical parameters:

• Inductance Value: Must be 820 µH with ±10% tolerance
• DC Resistance: Must not exceed 65Ohm maximum
• Current Rating: Must support minimum 40 mA operation
• Core Type: Ferrite unshielded construction
• Frequency Characteristics: Q factor of 30 @ 790kHz and self-resonant frequency of 3.8MHz
• Mounting & Package: Through-hole axial configuration with identical physical dimensions (0.095" Dia x 0.250" L)
• Operating Temperature: Must cover the -55°C to 125°C range or a subset thereof

The API Delevan 1025-90K meets the inductance, tolerance, DC resistance, core material, frequency characteristics, mounting type, package, and physical dimension requirements. However, the current rating of 29 mA is below the 40 mA specification of the main part, and the operating temperature range extends only to 105°C versus 125°C maximum.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 1025-90K is an active product with identical physical dimensions, inductance value, tolerance, DC resistance, and frequency characteristics to the Bourns 9230-90. Both components share ferrite core construction and through-hole axial mounting.

Selection of the 1025-90K requires evaluation of two limiting factors:

1. Current Rating Differential: The 1025-90K is rated for 29 mA maximum current versus the 40 mA rating of the 9230-90. Applications operating at or near 40 mA will exceed the substitute part's current specification.

2. Operating Temperature Range: The 1025-90K operates to 105°C maximum, whereas the original part extends to 125°C. Applications requiring operation above 105°C will exceed the substitute part's thermal specification.

Both components carry identical RoHS non-compliant and REACH unaffected designations. Selection should be based on whether the application's actual current draw and maximum operating temperature remain within the 1025-90K's rated limits.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1025-90K directly replace the Bourns 9230-90 in all applications?

A: Direct replacement is possible only if the application's maximum sustained current does not exceed 29 mA and the maximum operating temperature does not exceed 105°C. If either parameter exceeds these limits, the substitute part will operate outside its rated specification.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the Bourns 9230-90 and API Delevan 1025-90K share identical axial package dimensions of 0.095" diameter by 0.250" length (2.41mm x 6.35mm), ensuring mechanical compatibility in through-hole PCB layouts.

Q: Do both parts have the same inductance value and tolerance?

A: Yes. Both components are specified at 820 µH with ±10% tolerance and identical DC resistance of 65Ohm maximum, ensuring equivalent electrical performance in inductance-critical circuits.

Q: What is the significance of the Q factor and self-resonant frequency match?

A: Matching Q factor (30 @ 790kHz) and self-resonant frequency (3.8MHz) between parts ensures equivalent frequency response and impedance characteristics across the operating bandwidth, maintaining circuit performance in RF and filtering applications.

Q: Why is the Bourns 9230-90 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Bourns. The API Delevan 1025-90K, classified as active, represents a current production alternative with compatible electrical and mechanical specifications.

Q: Are there compliance or certification differences between these parts?

A: Both parts carry identical RoHS non-compliant and REACH unaffected designations. No compliance advantage exists between the two components.