Bourns 9230-66 82µH Through Hole Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9230-66 is a 82 µH unshielded molded inductor rated for 130 mA with 7.3Ohm maximum DC resistance, designed for through-hole axial mounting. This component operates across -55°C to 125°C and features ferrite core construction with ±10% inductance tolerance. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring 82 µH inductance at comparable current ratings and DC resistance specifications.

Key Parameters

Parameter	Value
Inductance	82 µH
Inductance Tolerance	±10%
Current Rating	130 mA
DC Resistance (DCR)	7.3Ohm Max
Q @ Frequency	50 @ 2.5MHz
Self Resonant Frequency	14MHz
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Through Hole Axial
Core Material	Ferrite
Shielding	Unshielded

Substitute Part Grouping Explanation

Substitution eligibility for the Bourns 9230-66 is determined by the following critical parameters:

Inductance Value: Must be 82 µH with ±10% tolerance
DC Resistance: Must not exceed 7.3Ohm
Current Rating: Must support minimum 130 mA continuous current
Mounting Configuration: Must be through-hole axial package
Frequency Characteristics: Q factor of 50 @ 2.5MHz and self-resonant frequency of 14MHz
Operating Temperature: Must support -55°C minimum and 125°C maximum

Two substitute parts meet these electrical and mechanical criteria: the API Delevan 1025-66K and the TE Connectivity SC30820KT. Both maintain the 82 µH inductance, 7.3Ohm DCR, and axial through-hole mounting. However, they differ in current rating capability, shielding configuration, and operating temperature ranges.

Parameter Comparison

Parameter	Bourns 9230-66	API Delevan 1025-66K	TE Connectivity SC30820KT
Inductance	82 µH	82 µH	82 µH
Inductance Tolerance	±10%	±10%	±10%
Current Rating (Amps)	130 mA	88 mA	156 mA
DC Resistance (DCR)	7.3Ohm Max	7.3Ohm Max	7.3Ohm Max
Q @ Frequency	50 @ 2.5MHz	50 @ 2.5MHz	50 @ 2.5MHz
Self Resonant Frequency	14MHz	14MHz	14MHz
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 100°C
Mounting Type	Through Hole Axial	Through Hole Axial	Through Hole Axial
Shielding	Unshielded	Unshielded	Shielded
Product Status	Obsolete	Active	Active
RoHS Status	Non-compliant	Non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

API Delevan 1025-66K: This substitute maintains electrical equivalence with identical inductance, tolerance, and DC resistance. However, the current rating of 88 mA is below the original 130 mA specification, making this part suitable only for applications where actual current draw does not exceed 88 mA. The operating temperature range of -55°C to 105°C is narrower than the original, limiting use in high-temperature environments above 105°C. The part is active and available in bulk packaging.

TE Connectivity SC30820KT: This substitute exceeds the original current rating at 156 mA, providing margin above the 130 mA requirement. It maintains all electrical parameters including inductance, tolerance, and DC resistance. The shielded construction differs from the unshielded original, which may affect electromagnetic coupling in sensitive circuits. Operating temperature range is -55°C to 100°C, which is narrower than the original specification. This part is active, ROHS3 compliant, and available in Tape & Box packaging.

For applications requiring full temperature range operation to 125°C, neither substitute fully matches the original specification. For standard operating conditions within -55°C to 100°C, the TE Connectivity SC30820KT is preferred due to active product status and ROHS3 compliance. The API Delevan 1025-66K is suitable only where circuit current does not exceed 88 mA.

Frequently Asked Questions (FAQ)

Q: Can the API Delevan 1025-66K replace the Bourns 9230-66 in all applications?

A: No. The API Delevan 1025-66K has a maximum current rating of 88 mA, which is below the original 130 mA specification. It is suitable only for circuits where actual current draw remains below 88 mA. Additionally, its operating temperature range extends only to 105°C, limiting use in applications requiring operation to 125°C.

Q: What is the primary difference between the TE Connectivity SC30820KT and the original Bourns part?

A: The TE Connectivity SC30820KT features shielded construction, whereas the Bourns 9230-66 is unshielded. Both maintain identical inductance (82 µH), tolerance (±10%), and DC resistance (7.3Ohm Max). The shielded design may reduce electromagnetic interference but could affect circuit behavior in applications sensitive to coupling characteristics.

Q: Does the TE Connectivity SC30820KT meet RoHS requirements?

A: Yes. The TE Connectivity SC30820KT is ROHS3 compliant, whereas the original Bourns 9230-66 is RoHS non-compliant. This makes the TE part suitable for applications with RoHS compliance mandates.

Q: Are the physical dimensions compatible between substitutes and the original?

A: The Bourns 9230-66 and API Delevan 1025-66K share identical dimensions (0.095" Dia x 0.250" L). The TE Connectivity SC30820KT has larger dimensions (0.165" Dia x 0.394" L) due to its shielded construction, which may require PCB layout modifications.

Q: What is the maximum operating temperature for each part?

A: Bourns 9230-66 operates to 125°C, API Delevan 1025-66K to 105°C, and TE Connectivity SC30820KT to 100°C. Applications requiring sustained operation above 100°C cannot use either substitute without thermal derating considerations.

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