Bourns 9230-64 68µH Through-Hole Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9230-64 is a 68 µH unshielded molded inductor rated for 135 mA with 6.7Ω maximum DC resistance, designed for through-hole axial mounting. This component operates across -55°C to 125°C and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for ongoing design support and procurement continuity.

Substiute Parts

9230-64

Bourns Inc.In Stock: 10059230-64 Datasheet

Current PartRFQ

9230-64-RC

Bourns Inc.In Stock: 11919230-64-RC Datasheet

DirectRFQ

1025-64K

API Delevan Inc.In Stock: 6871025-64K Datasheet

SimilarRFQ

SC30680KT

TE Connectivity Passive ProductIn Stock: 890SC30680KT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters: inductance value (68 µH), inductance tolerance (±10%), DC resistance (6.7Ω maximum), Q factor at 2.5MHz (50), self-resonant frequency (15 MHz), mounting type (through-hole axial), and operating temperature compatibility.

The substitute parts are grouped into two categories:

Direct Equivalent (Same Specifications): 9230-64-RC maintains identical electrical specifications and physical dimensions, differing only in product status (active vs. obsolete) and RoHS compliance level.

Compatible Substitutes (Parameter Variations): 1025-64K and SC30680KT meet the core inductance, tolerance, DCR, and frequency requirements but vary in current rating, operating temperature range, shielding characteristics, or physical dimensions. These variations must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

9230-64-RC (Bourns Inc.): This is the primary direct equivalent. It maintains identical electrical and physical specifications while offering active product status and ROHS3 compliance. Selection of this part eliminates obsolescence risk and satisfies modern regulatory requirements without design modification.

1025-64K (API Delevan Inc.): This substitute is suitable for applications where current rating does not exceed 92 mA and operating temperature does not exceed 105°C. The identical package footprint and electrical core parameters (inductance, DCR, Q factor, self-resonant frequency) enable direct board-level substitution. RoHS non-compliance status must be evaluated against procurement requirements.

SC30680KT (TE Connectivity): This substitute offers the highest current rating (162 mA) and ROHS3 compliance. However, it features shielded construction (versus unshielded), larger physical dimensions (0.165" Dia × 0.394" L), and lower maximum operating temperature (100°C). Board layout modifications are required due to size differences. Selection is appropriate for applications requiring enhanced current capacity and EMI shielding, with thermal headroom below 100°C.

Frequently Asked Questions (FAQ)

Q: Can 9230-64-RC be used as a direct replacement for 9230-64?

A: Yes. The 9230-64-RC is electrically and mechanically identical to the 9230-64, with the same inductance (68 µH), current rating (135 mA), DC resistance (6.7Ω), and package dimensions. The primary differences are active product status and improved RoHS3 compliance, making it the recommended direct substitute.

Q: What are the limitations of using 1025-64K as a substitute?

A: The 1025-64K has a reduced current rating of 92 mA compared to the original 135 mA specification. Applications requiring sustained currents above 92 mA will exceed this part's rating. Additionally, the maximum operating temperature is limited to 105°C versus the original 125°C. RoHS non-compliance may also conflict with procurement standards.

Q: Why is SC30680KT larger than the original part?

A: The SC30680KT measures 0.165" Dia × 0.394" L, compared to the original 0.095" Dia × 0.250" L. This size increase is associated with its shielded construction and higher current rating (162 mA). Board layout modifications are necessary to accommodate this larger footprint.

Q: Can SC30680KT be used in applications requiring unshielded inductors?

A: No. The SC30680KT features shielded construction, which differs fundamentally from the unshielded design of the 9230-64. Shielding affects electromagnetic coupling characteristics and may introduce unintended circuit behavior in designs optimized for unshielded components. Use only if shielding is acceptable or beneficial to the application.

Q: What is the temperature operating range limitation for SC30680KT?

A: The SC30680KT operates from -55°C to 100°C, which is 25°C lower than the original part's 125°C maximum. Applications requiring operation above 100°C must use 9230-64-RC or evaluate thermal management modifications.

Q: Are all substitute parts through-hole axial mounted?

A: Yes. All listed substitutes (9230-64-RC, 1025-64K, and SC30680KT) are through-hole axial mounted components, enabling board-level compatibility without soldering process changes.