Bourns 9230-16 680 nH Axial Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9230-16 is a 680 nH unshielded molded inductor rated for 450 mA with 600 mOhm 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. Direct replacements and functionally equivalent alternatives are available from Bourns Inc. and API Delevan Inc. with improved product status and compliance certifications.

Key Parameters

Parameter	Value
Inductance	680 nH
Tolerance	±10%
Current Rating	450 mA
DC Resistance (DCR)	600 mOhm Max
Q @ Frequency	28 @ 25 MHz
Frequency - Self Resonant	275 MHz
Operating Temperature Range	-55°C ~ 105°C
Mounting Type	Through Hole
Package / Case	Axial
Size / Dimension	0.095" Dia x 0.250" L (2.41 mm x 6.35 mm)
Core Material	Phenolic
Shielding	Unshielded

Substitute Part Grouping Explanation

Substitution for the Bourns 9230-16 is determined by strict equivalence across the following critical parameters: inductance value (680 nH), tolerance (±10%), DC resistance (600 mOhm maximum), Q factor (28 @ 25 MHz), self-resonant frequency (275 MHz), core material (phenolic), shielding type (unshielded), mounting configuration (through-hole axial), and physical dimensions (0.095" Dia x 0.250" L).

Substitute parts are grouped into two categories:

Direct Equivalent (Same Manufacturer): The Bourns 9230-16-RC maintains identical electrical and mechanical specifications while offering active product status and improved RoHS3 compliance.

Functional Equivalent (Alternative Manufacturer): The API Delevan 1025-16K provides equivalent inductance, tolerance, DC resistance, Q factor, and self-resonant frequency with a higher current rating (500 mA versus 450 mA) and extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 105°C). Physical dimensions and core material remain identical.

Parameter Comparison

Parameter	Bourns 9230-16	Bourns 9230-16-RC	API Delevan 1025-16K
Inductance	680 nH	680 nH	680 nH
Tolerance	±10%	±10%	±10%
Current Rating (Amps)	450 mA	450 mA	500 mA
DC Resistance (DCR)	600 mOhm Max	600 mOhm Max	600 mOhm Max
Q @ Frequency	28 @ 25 MHz	28 @ 25 MHz	28 @ 25 MHz
Frequency - Self Resonant	275 MHz	275 MHz	275 MHz
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Axial	Axial	Axial
Size / Dimension	0.095" Dia x 0.250" L (2.41 mm x 6.35 mm)	0.095" Dia x 0.250" L (2.41 mm x 6.35 mm)	0.095" Dia x 0.250" L (2.41 mm x 6.35 mm)
Core Material	Phenolic	Phenolic	Phenolic
Shielding	Unshielded	Unshielded	Unshielded
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS non-compliant

Engineering Selection Recommendations

Bourns 9230-16-RC is the primary direct replacement for the obsolete Bourns 9230-16. This part maintains complete electrical and mechanical compatibility while offering active product status and RoHS3 compliance, making it suitable for new designs and production continuity where regulatory compliance is required.

API Delevan 1025-16K serves as a functional equivalent for applications where the higher current rating (500 mA) and extended operating temperature range (-55°C ~ 125°C) provide design margin benefits. This part is suitable for circuits operating at elevated temperatures or requiring higher current headroom. Note that this part does not carry RoHS3 compliance.

Selection between the two substitutes depends on compliance requirements and thermal operating conditions. Both parts maintain identical inductance, tolerance, DC resistance, Q factor, and self-resonant frequency specifications, ensuring electrical interchangeability within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 9230-16-RC be used as a direct replacement for the Bourns 9230-16?

A: Yes. The 9230-16-RC is electrically and mechanically identical to the 9230-16 across all critical parameters: inductance (680 nH), tolerance (±10%), current rating (450 mA), DC resistance (600 mOhm max), Q factor (28 @ 25 MHz), self-resonant frequency (275 MHz), and physical dimensions (0.095" Dia x 0.250" L). The primary difference is product status (active versus obsolete) and RoHS3 compliance.

Q: What are the differences between the Bourns 9230-16-RC and the API Delevan 1025-16K?

A: Both parts share identical inductance (680 nH), tolerance (±10%), DC resistance (600 mOhm max), Q factor (28 @ 25 MHz), self-resonant frequency (275 MHz), and physical dimensions. The API Delevan 1025-16K offers a higher current rating (500 mA versus 450 mA) and extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 105°C). The Bourns part carries RoHS3 compliance while the API Delevan part does not.

Q: Are these parts pin-compatible and mechanically interchangeable?

A: Yes. All three parts use identical through-hole axial mounting configuration with matching physical dimensions (0.095" Dia x 0.250" L / 2.41 mm x 6.35 mm), ensuring direct mechanical and electrical interchangeability on PCBs designed for the original Bourns 9230-16.

Q: Which substitute should be selected for RoHS-compliant applications?

A: The Bourns 9230-16-RC is RoHS3 compliant and is the appropriate choice for applications requiring regulatory compliance. The API Delevan 1025-16K is RoHS non-compliant.

Q: Can the API Delevan 1025-16K be used in circuits designed for the 450 mA current rating?

A: Yes. The API Delevan 1025-16K is rated for 500 mA, which exceeds the original 450 mA specification. This part can be used in any circuit designed for the 450 mA rating without derating concerns, as the higher current rating provides additional design margin.

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