Bourns 9230-68 100µH Axial Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9230-68 is a 100µH unshielded molded inductor rated for 125mA with 8Ohm maximum DC resistance, designed for through-hole axial mounting. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The 9230 series represents a legacy ferrite-core inductor platform that requires direct functional equivalents or compatible alternatives to maintain circuit performance in existing designs.

Substiute Parts

9230-68

Bourns Inc.In Stock: 8949230-68 Datasheet

Current PartRFQ

9230-68-RC

Bourns Inc.In Stock: 18839230-68-RC Datasheet

DirectRFQ

1025-68K

API Delevan Inc.In Stock: 106081025-68K Datasheet

SimilarRFQ

SC30101KT

TE Connectivity Passive ProductIn Stock: 2945SC30101KT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Bourns 9230-68 is determined by the following critical parameters: inductance value (100µH), tolerance (±10%), DC resistance (8Ohm maximum), current rating capability, core material (ferrite), shielding configuration, and through-hole axial package compatibility. Parts are grouped into two categories:

Direct Equivalent (Same Manufacturer): The 9230-68-RC maintains identical electrical specifications and physical dimensions while offering active product status and improved compliance.

Functional Equivalents (Alternative Manufacturers): The 1025-68K and SC30101KT provide the same inductance, tolerance, and DC resistance within specified operating parameters, though with variations in current rating, shielding, and temperature range that must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Bourns 9230-68-RC

The 9230-68-RC is the direct equivalent replacement for the obsolete 9230-68. It maintains identical electrical specifications, physical dimensions, and thermal operating range (-55°C to 125°C). The primary advantage is active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. This part is suitable for direct substitution in all applications where the original 9230-68 was specified.

Secondary Recommendation: TE Connectivity SC30101KT

The SC30101KT provides higher current rating capability (149mA versus 125mA) and ROHS3 compliance. However, it introduces two design considerations: shielded construction (versus unshielded) and larger physical dimensions (0.165" Dia × 0.394" L). The shielded design may alter electromagnetic coupling characteristics in sensitive circuits. The increased package size requires PCB layout verification. This part is suitable when higher current margin is required and shielding does not conflict with circuit design.

Tertiary Recommendation: API Delevan 1025-68K

The 1025-68K is a military-grade alternative (MIL-PRF-M15305, MS75085) with identical inductance, tolerance, and DC resistance. The current rating is reduced to 84mA, making this part unsuitable for applications requiring the full 125mA specification. Operating temperature range is limited to -55°C to 105°C. This part is applicable only in current-limited applications where the 84mA rating is acceptable and the reduced temperature range does not conflict with system requirements.

Frequently Asked Questions (FAQ)

Q: Can the 9230-68-RC be used as a direct drop-in replacement for the 9230-68?

A: Yes. The 9230-68-RC is electrically and mechanically identical to the 9230-68, with the same inductance (100µH), current rating (125mA), DC resistance (8Ohm max), and physical dimensions (0.095" Dia × 0.250" L). The primary difference is product status (active versus obsolete) and improved RoHS compliance.

Q: What is the impact of using the SC30101KT shielded inductor in place of the unshielded 9230-68?

A: The shielded construction of the SC30101KT reduces radiated electromagnetic interference but may alter coupling characteristics in circuits designed around the unshielded 9230-68. The larger physical dimensions (0.165" Dia × 0.394" L) require PCB layout verification. Electrical parameters (inductance, Q, resonant frequency) remain compatible.

Q: Is the 1025-68K suitable for all applications using the 9230-68?

A: No. The 1025-68K has a reduced current rating of 84mA compared to the 9230-68 specification of 125mA. It is suitable only for applications where circuit current does not exceed 84mA. Additionally, the operating temperature range is limited to -55°C to 105°C, which may not meet high-temperature requirements.

Q: What are the compliance differences between these parts?

A: The 9230-68 and 1025-68K are RoHS non-compliant. The 9230-68-RC and SC30101KT are ROHS3 compliant. For applications requiring regulatory compliance, the 9230-68-RC is the preferred direct replacement.

Q: Are there physical space constraints when substituting with the SC30101KT?

A: Yes. The SC30101KT package is significantly larger (0.165" Dia × 0.394" L) compared to the 9230-68 (0.095" Dia × 0.250" L). PCB layout must be verified to confirm adequate clearance and that the larger component does not interfere with adjacent circuitry.

Q: What is the difference between the 9230-68 and 9230-68-RC packaging?

A: The 9230-68 is supplied in standard packaging, while the 9230-68-RC is supplied in bulk packaging. Both maintain identical component specifications and physical dimensions. Packaging format does not affect electrical or mechanical compatibility.