Bourns 9230-20-RC Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9230-20-RC is a 1 µH unshielded molded inductor rated for 350 mA with a maximum DC resistance of 1 Ohm. This through-hole axial component is designed for general-purpose RF and filtering applications in the frequency range up to 230 MHz. The part is currently active in production and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts may be required due to inventory constraints, design optimization for specific shielding requirements, or higher current rating needs.

Substiute Parts

9230-20-RC

Bourns Inc.In Stock: 17059230-20-RC Datasheet

Current PartRFQ

SC301R0KT

TE Connectivity Passive ProductIn Stock: 2630SC301R0KT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9230-20-RC is determined by the following critical parameters:

• Inductance value: 1 µH (exact match required)
• Inductance tolerance: ±10% (exact match required)
• DC resistance: 1 Ohm maximum (exact match required)
• Q factor @ 25 MHz: 25 (exact match required)
• Self resonant frequency: 230 MHz (exact match required)
• Mounting type: Through hole axial (exact match required)
• Operating temperature range: Minimum -55°C to 105°C (substitute must meet or exceed)
• RoHS compliance: ROHS3 compliant (required for regulatory alignment)

The TE Connectivity Passive Product SC301R0KT qualifies as a substitute based on matching inductance, tolerance, DC resistance, Q factor, self resonant frequency, and mounting configuration. The substitute offers an increased current rating of 420 mA (versus 350 mA) and includes shielding, which provides additional design flexibility for noise-sensitive applications.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity SC301R0KT is electrically and mechanically compatible with the Bourns 9230-20-RC for applications operating within -55°C to 100°C. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for modern manufacturing environments.

The SC301R0KT provides a higher current rating of 420 mA, offering additional design margin for circuits approaching the 350 mA limit of the original part. The shielded construction of the SC301R0KT reduces electromagnetic interference coupling, making it suitable for noise-sensitive RF and filtering applications.

The upper operating temperature limit of the SC301R0KT is 100°C, compared to 105°C for the Bourns part. Applications requiring operation above 100°C must use the original Bourns 9230-20-RC.

Both parts are packaged in axial through-hole format with identical electrical performance at the test frequency of 25 MHz and maintain the same self-resonant frequency of 230 MHz.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity SC301R0KT replace the Bourns 9230-20-RC in all applications?

A: The SC301R0KT is electrically equivalent for applications operating within -55°C to 100°C. Applications requiring operation above 100°C must use the original Bourns part. The shielded construction of the SC301R0KT may affect circuit layout in space-constrained designs due to its larger physical dimensions (0.165" Dia x 0.394" L versus 0.095" Dia x 0.250" L).

Q: What are the key electrical parameters that must match for substitution?

A: Inductance (1 µH), tolerance (±10%), DC resistance (1 Ohm maximum), Q factor at 25 MHz (25), and self-resonant frequency (230 MHz) must all match exactly. Both parts meet these criteria.

Q: Does the shielding on the SC301R0KT affect compatibility?

A: Shielding is an enhancement that reduces electromagnetic interference. It does not prevent the part from functioning as a substitute. However, the shielded design increases the physical size, which may require PCB layout verification in compact assemblies.

Q: Are there packaging differences between these parts?

A: The Bourns 9230-20-RC is supplied in bulk packaging, while the TE Connectivity SC301R0KT is supplied in cut tape (CT) format. Both are through-hole axial components with identical mounting requirements.

Q: What is the current rating difference, and does it matter?

A: The SC301R0KT is rated for 420 mA compared to 350 mA for the Bourns part. If your circuit draws less than 350 mA, both parts are suitable. If your circuit approaches or exceeds 350 mA, the SC301R0KT provides additional margin.