Bourns 9250-101-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9250-101-RC is a 100 nH shielded drum core wirewound inductor rated for 1.79 A with a maximum DC resistance of 25 mOhm. This through-hole axial component operates across -55°C to 105°C and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from both Bourns and API Delevan are available to maintain design continuity and ensure supply chain reliability.

Key Parameters

Parameter	Value
Inductance	100 nH
Tolerance	±10%
Current Rating	1.79 A
DC Resistance (Max)	25 mOhm
Shielding	Shielded
Q @ 25 MHz	50
Self Resonant Frequency	250 MHz
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole
Package	Axial
Size	0.162" Dia x 0.410" L (4.11mm x 10.41mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: inductance value (100 nH), tolerance (±10%), current rating (1.79 A), DC resistance (25 mOhm maximum), shielding (shielded), Q factor (50 @ 25 MHz), self-resonant frequency (250 MHz), mounting type (through hole), and package form (axial). All substitute parts listed meet these electrical and mechanical specifications. Variations in core material type (ferrite versus phenolic), product status (active versus obsolete), and compliance certifications are noted but do not affect functional equivalence within the specified parameter set.

Parameter Comparison

Parameter	9250-101-RC (Main)	9250A-101-RC	ER1641-101KM	ER1641-101KP	ER1641-101KR	ER1641-101KS
Manufacturer	Bourns Inc.	Bourns Inc.	API Delevan Inc.	API Delevan Inc.	API Delevan Inc.	API Delevan Inc.
Inductance	100 nH	100 nH	100 nH	100 nH	100 nH	100 nH
Tolerance	±10%	±10%	±10%	±10%	±10%	±10%
Current Rating (A)	1.79	1.79	1.79	1.79	1.79	1.79
DC Resistance (Max)	25 mOhm	25 mOhm	25 mOhm	25 mOhm	25 mOhm	25 mOhm
Shielding	Shielded	Shielded	Shielded	Shielded	Shielded	Shielded
Q @ 25 MHz	50	50	50	50	50	50
Self Resonant Frequency	250 MHz	250 MHz	250 MHz	250 MHz	250 MHz	250 MHz
Operating Temperature Range	-55°C to 105°C	-55°C to 125°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package	Axial	Axial	Axial	Axial	Axial	Axial
Size	0.162" Dia x 0.410" L	0.162" Dia x 0.410" L	0.162" Dia x 0.410" L	0.162" Dia x 0.410" L	0.162" Dia x 0.410" L	0.162" Dia x 0.410" L
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-compliant	RoHS Non-compliant	RoHS Non-compliant	RoHS Non-compliant

Engineering Selection Recommendations

For new designs and ongoing production, the Bourns 9250A-101-RC is the primary recommended substitute. It maintains identical electrical specifications to the 9250-101-RC while offering active product status and ROHS3 compliance. The extended operating temperature range (-55°C to 125°C) provides additional thermal margin. Packaging is available in bulk form.

The API Delevan ER1641 series (ER1641-101KM, ER1641-101KP, ER1641-101KR, ER1641-101KS) provides functionally equivalent alternatives with active product status. These parts are supplied in tape and reel packaging. Note that ER1641 series components are RoHS non-compliant and should be selected only when RoHS compliance is not a design requirement. All ER1641 variants share identical electrical and mechanical specifications; selection among them is determined by packaging and availability requirements.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-101-RC directly replace the obsolete 9250-101-RC?

A: Yes. The 9250A-101-RC meets all electrical specifications of the 9250-101-RC, including inductance, current rating, DC resistance, and frequency characteristics. Both components are identical in physical dimensions and mounting configuration. The primary difference is that 9250A-101-RC is an active product with extended temperature range capability.

Q: What are the differences between Bourns and API Delevan substitute options?

A: The Bourns 9250A-101-RC and API Delevan ER1641 series are electrically equivalent. Key differences include: manufacturer, core material (ferrite versus phenolic), RoHS compliance status, and packaging format. Bourns offers ROHS3 compliance; API Delevan ER1641 variants are RoHS non-compliant. Bourns packaging is bulk; API Delevan is tape and reel.

Q: Are all ER1641 variants interchangeable?

A: Yes. The ER1641-101KM, ER1641-101KP, ER1641-101KR, and ER1641-101KS variants are electrically and mechanically identical. Differences are limited to packaging specifications and inventory availability.

Q: Does the extended temperature range of 9250A-101-RC affect compatibility?

A: No. The extended range (-55°C to 125°C versus -55°C to 105°C) is a superset of the original specification and does not impact compatibility. Applications operating within the original temperature range experience no functional difference.

Q: What packaging considerations apply to these substitutes?

A: The 9250-101-RC and 9250A-101-RC are supplied in bulk packaging. The ER1641 series is supplied in tape and reel format. Both packaging types are compatible with standard through-hole assembly processes. Packaging selection depends on production volume and assembly equipment capabilities.

Q: Are there compliance implications when selecting between these parts?

A: Yes. If RoHS3 compliance is required, select the Bourns 9250A-101-RC. The API Delevan ER1641 series is RoHS non-compliant and should not be used in applications with RoHS compliance mandates. All parts are REACH unaffected and classified as EAR99 for export control purposes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message