Bourns 9250-223-RC 22µH Shielded Drum Core Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Bourns 9250-223-RC is a 22 µH shielded drum core wirewound inductor rated for 290 mA with a maximum DC resistance of 960 mOhm. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing production and maintenance applications. The 9250-223-RC series has been superseded by active production alternatives that maintain electrical and mechanical compatibility while offering improved availability and updated compliance certifications.

Key Parameters

Parameter	Value
Inductance	22 µH
Tolerance	±10%
Current Rating	290 mA
Current - Saturation (Isat)	220 mA
DC Resistance (DCR)	960 mOhm Max
Shielding	Shielded
Q @ Frequency	45 @ 2.5 MHz
Frequency - Self Resonant	41 MHz
Operating Temperature Range	-55°C ~ 105°C
Mounting Type	Through Hole
Package / Case	Axial
Size / Dimension	0.162" Dia x 0.410" L (4.11mm x 10.41mm)
Material - Core	Ferrite

Substitute Part Grouping Explanation

Substitution of the Bourns 9250-223-RC is determined by strict equivalence across the following electrical and mechanical parameters:

Inductance value: 22 µH ±10%
Current rating: 290 mA minimum
DC resistance: 960 mOhm maximum
Shielding configuration: Shielded
Q factor: 45 @ 2.5 MHz
Self-resonant frequency: 41 MHz
Operating temperature range: -55°C minimum to 105°C minimum
Mounting type: Through Hole Axial
Physical dimensions: 0.162" Dia x 0.410" L (4.11mm x 10.41mm)
Core material: Ferrite

Substitute parts are classified into two categories: direct manufacturer alternatives (same manufacturer, updated series) and cross-manufacturer equivalents (different manufacturer, identical electrical specifications).

Parameter Comparison

Parameter	9250-223-RC (Main)	9250A-223-RC (Direct)	ER1641-223KM	ER1641-223KP	ER1641-223KR
Manufacturer	Bourns Inc.	Bourns Inc.	API Delevan Inc.	API Delevan Inc.	API Delevan Inc.
Product Status	Obsolete	Active	Active	Active	Active
Inductance	22 µH	22 µH	22 µH	22 µH	22 µH
Tolerance	±10%	±10%	±10%	±10%	±10%
Current Rating (Amps)	290 mA	290 mA	290 mA	290 mA	290 mA
DC Resistance (DCR)	960 mOhm Max	960 mOhm Max	960 mOhm Max	960 mOhm Max	960 mOhm Max
Shielding	Shielded	Shielded	Shielded	Shielded	Unshielded
Q @ Frequency	45 @ 2.5 MHz	45 @ 2.5 MHz	45 @ 2.5 MHz	45 @ 2.5 MHz	45 @ 2.5 MHz
Frequency - Self Resonant	41 MHz	41 MHz	41 MHz	41 MHz	41 MHz
Operating Temperature	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Axial	Axial	Axial	Axial	Axial
Size / Dimension	0.162" Dia x 0.410" L (4.11mm x 10.41mm)	0.162" Dia x 0.410" L (4.11mm x 10.41mm)	0.162" Dia x 0.410" L (4.11mm x 10.41mm)	0.162" Dia x 0.410" L (4.11mm x 10.41mm)	0.162" Dia x 0.410" L (4.11mm x 10.41mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	RoHS non-compliant
Type	Drum Core, Wirewound	Molded	Molded	Molded	Unspecified
Packaging	Bulk	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

The Bourns 9250A-223-RC is the primary direct substitute for the obsolete 9250-223-RC. Both components are manufactured by Bourns Inc., maintain identical electrical specifications, and share the same physical footprint. The 9250A-223-RC offers an extended operating temperature range (-55°C to 125°C versus -55°C to 105°C) and is actively produced with ROHS3 compliance certification.

The API Delevan ER1641-223KM and ER1641-223KP are electrically equivalent cross-manufacturer substitutes with identical inductance, current rating, DC resistance, and frequency characteristics. Both maintain shielded configurations and are actively produced. However, these parts are RoHS non-compliant and supplied in Tape & Reel packaging rather than bulk.

The API Delevan ER1641-223KR is electrically equivalent but features an unshielded configuration, making it unsuitable for applications requiring electromagnetic shielding. This part is classified as a military-grade component per MIL-PRF-39010/03 and is RoHS non-compliant.

Selection should prioritize the Bourns 9250A-223-RC for new designs and production requiring RoHS3 compliance. Cross-manufacturer API Delevan alternatives are suitable only when shielding requirements are confirmed and RoHS non-compliance is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 9250A-223-RC directly replace the obsolete 9250-223-RC in existing designs?

A: Yes. The 9250A-223-RC maintains identical electrical specifications (22 µH, 290 mA, 960 mOhm DCR) and physical dimensions (0.162" Dia x 0.410" L). The primary difference is the extended operating temperature range (-55°C to 125°C) and updated RoHS3 compliance. No circuit modifications are required.

Q: What is the key difference between the Bourns 9250-223-RC and API Delevan ER1641-223KM?

A: Both parts are electrically equivalent with identical inductance, current rating, and DC resistance. The primary differences are manufacturer, packaging format (Bulk versus Tape & Reel), RoHS compliance status (ROHS3 versus non-compliant), and operating temperature range (105°C versus 105°C maximum). Physical dimensions and shielding are identical.

Q: Why is the ER1641-223KR not recommended as a substitute?

A: The ER1641-223KR features an unshielded configuration, whereas the 9250-223-RC is shielded. Unshielded inductors generate electromagnetic fields that may cause interference in sensitive circuits. Use only if shielding is not required by the application.

Q: Are the API Delevan ER1641 series parts suitable for RoHS-compliant applications?

A: No. The ER1641-223KM, ER1641-223KP, and ER1641-223KR are all RoHS non-compliant. For RoHS-compliant designs, use the Bourns 9250A-223-RC, which carries ROHS3 certification.

Q: What packaging formats are available for these substitute parts?

A: The Bourns 9250A-223-RC is supplied in Bulk packaging. The API Delevan ER1641 series (ER1641-223KM, ER1641-223KP, ER1641-223KR) are supplied in Tape & Reel (TR) format. Select based on assembly process requirements and order quantities.

Q: Do all substitute parts maintain the same physical footprint?

A: Yes. All listed substitute parts share identical dimensions of 0.162" Dia x 0.410" L (4.11mm x 10.41mm) and are mounted as Through Hole Axial components. PCB layout modifications are not required.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message