9250-824-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9250-824-RC is a 820 µH shielded drum core wirewound inductor rated for 80 mA with a maximum DC resistance of 13 Ohm. This through-hole axial component operates across -55°C to 105°C and is designed for applications requiring fixed inductance with ferrite core shielding. The 9250-824-RC is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Inductance	820 µH
Inductance Tolerance	±10%
Current Rating	80 mA
Current - Saturation (Isat)	45 mA
DC Resistance (DCR)	13 Ohm Max
Shielding	Shielded
Core Material	Ferrite
Q @ Frequency	60 @ 790 kHz
Frequency - Self Resonant	4.2 MHz
Operating Temperature Range	-55°C to 105°C
Mounting Type	Through Hole
Package / Case	Axial
Size / Dimension	0.162" Dia x 0.410" L (4.11 mm x 10.41 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 9250-824-RC is determined by the following electrical and mechanical parameters:

Inductance value: 820 µH with ±10% tolerance
Current rating: 80 mA minimum
DC resistance: 13 Ohm maximum
Shielding: Shielded configuration required
Core material: Ferrite
Q factor: 60 @ 790 kHz
Self-resonant frequency: 4.2 MHz
Operating temperature range: Minimum -55°C to 105°C
Mounting type: Through hole axial
Physical dimensions: 0.162" Dia x 0.410" L (4.11 mm x 10.41 mm)

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in product status, packaging format, and RoHS compliance are noted but do not affect functional equivalence within the specified parameter envelope.

Parameter Comparison

Part Number	Manufacturer	Inductance	Current Rating	DCR (Max)	Q @ 790 kHz	Temp Range	Type	Packaging	Product Status	RoHS Status
9250-824-RC	Bourns Inc.	820 µH	80 mA	13 Ohm	60	-55°C to 105°C	Drum Core, Wirewound	Bulk	Obsolete	ROHS3 Compliant
9250A-824-RC	Bourns Inc.	820 µH	80 mA	13 Ohm	60	-55°C to 125°C	Molded	Bulk	Active	ROHS3 Compliant
1641R-824K	API Delevan Inc.	820 µH	80 mA	13 Ohm	60	-55°C to 105°C	Molded	Bulk	Active	ROHS3 Compliant
ER1641-824KM	API Delevan Inc.	820 µH	80 mA	13 Ohm	60	-55°C to 105°C	Molded	Tape & Reel (TR)	Active	RoHS non-compliant
ER1641-824KP	API Delevan Inc.	820 µH	80 mA	13 Ohm	60	-55°C to 105°C	Molded	Tape & Reel (TR)	Active	RoHS non-compliant
ER1641-824KR	API Delevan Inc.	820 µH	80 mA	13 Ohm	60	-55°C to 105°C	Molded	Tape & Reel (TR)	Active	RoHS non-compliant

Engineering Selection Recommendations

Primary Recommendation: 9250A-824-RC (Bourns Inc.)

The 9250A-824-RC is the direct successor to the obsolete 9250-824-RC. Both are manufactured by Bourns Inc. and share identical electrical specifications. The 9250A-824-RC offers an extended operating temperature range (-55°C to 125°C versus -55°C to 105°C) and maintains ROHS3 compliance. This part is currently in active production status with bulk packaging availability.

Secondary Recommendation: 1641R-824K (API Delevan Inc.)

The 1641R-824K provides functional equivalence with all critical electrical parameters matching the original specification. This part is actively produced, ROHS3 compliant, and available in bulk packaging. The molded construction differs from the original drum core design but maintains identical electrical performance within the specified parameter envelope.

Alternative Options: ER1641-824KM, ER1641-824KP, ER1641-824KR (API Delevan Inc.)

These three API Delevan parts are electrically equivalent and actively produced. All three are supplied in Tape & Reel (TR) packaging, suitable for automated assembly environments. Note that these parts carry RoHS non-compliant status, which may restrict use in applications subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-824-RC directly replace the 9250-824-RC?

A: Yes. The 9250A-824-RC maintains all electrical specifications of the 9250-824-RC and is the active production equivalent from the same manufacturer. The extended temperature range provides additional operational margin.

Q: What is the difference between drum core and molded construction?

A: The 9250-824-RC uses drum core wirewound construction, while substitute parts use molded construction. Both achieve identical electrical performance within the specified parameter envelope. Molded construction offers improved mechanical robustness and automated assembly compatibility.

Q: Are the API Delevan parts (1641R-824K and ER1641 series) electrically equivalent?

A: Yes. All API Delevan parts listed maintain the same inductance value (820 µH), current rating (80 mA), DC resistance (13 Ohm max), and frequency characteristics as the original 9250-824-RC.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging is suitable for manual assembly and small-volume applications. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment and high-volume production environments.

Q: Should I use the RoHS non-compliant ER1641 parts?

A: Use of RoHS non-compliant parts depends on application requirements and regulatory jurisdiction. If RoHS compliance is mandatory, select from ROHS3-compliant alternatives: 9250A-824-RC or 1641R-824K.

Q: Are there any temperature range limitations I should consider?

A: The original 9250-824-RC operates to 105°C maximum. The 9250A-824-RC extends this to 125°C. API Delevan parts (1641R-824K and ER1641 series) operate to 105°C. Select based on your application's maximum operating temperature requirement.

Q: Can I use these parts interchangeably in existing PCB designs?

A: Yes, provided the PCB footprint accommodates the axial through-hole package with dimensions 0.162" Dia x 0.410" L (4.11 mm x 10.41 mm). All listed parts share identical physical dimensions.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message