Bourns 9250-225-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9250-225-RC is a 2.2 mH shielded drum core wirewound inductor rated for 50 mA with a maximum DC resistance of 33.8 Ohm. This through-hole axial component is designed for applications requiring fixed inductance with ferrite core shielding and operates across the temperature range of -55°C to 105°C. The 9250-225-RC is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

9250-225-RC

Bourns Inc.In Stock: 11109250-225-RC Datasheet

Current PartRFQ

9250A-225-RC

Bourns Inc.In Stock: 33299250A-225-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Bourns 9250-225-RC is determined by strict equivalence across the following critical parameters:

• Inductance value: 2.2 mH with ±10% tolerance
• Current rating: 50 mA minimum
• Saturation current (Isat): 27 mA
• DC resistance: 33.8 Ohm maximum
• Shielding: Shielded configuration required
• Core material: Ferrite
• Q factor: 45 @ 250 kHz
• Self-resonant frequency: 970 kHz
• Operating temperature range: Minimum -55°C to 105°C
• Mounting: Through-hole axial package
• Physical dimensions: 0.162" Dia x 0.410" L (4.11 mm x 10.41 mm)
• Compliance: ROHS3 compliant

The Bourns 9250A-225-RC qualifies as a direct substitute based on matching all electrical and mechanical parameters within the specified tolerances.

Parameter Comparison

Engineering Selection Recommendations

The Bourns 9250A-225-RC is the direct substitute for the obsolete 9250-225-RC. Both components are manufactured by Bourns Inc. and maintain identical electrical specifications across inductance, current rating, DC resistance, Q factor, and self-resonant frequency. The 9250A-225-RC is currently in active production status, ensuring supply chain availability and long-term support.

The primary difference between the two parts is the core construction: the original 9250-225-RC uses a drum core wirewound design, while the 9250A-225-RC employs a molded construction. Both maintain shielded ferrite core architecture and meet ROHS3 compliance requirements. The 9250A-225-RC offers an extended operating temperature range of -55°C to 125°C compared to the original -55°C to 105°C specification, providing additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-225-RC be used as a direct replacement for the 9250-225-RC in existing designs?

A: Yes. The 9250A-225-RC matches all critical electrical parameters including inductance, current rating, DC resistance, Q factor, and self-resonant frequency. Both components are shielded ferrite core inductors in identical axial through-hole packages with matching physical dimensions.

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

A: The 9250-225-RC features a drum core wirewound design, while the 9250A-225-RC uses molded construction. Both achieve the same electrical performance and shielding characteristics. The molded design of the 9250A-225-RC provides improved mechanical robustness and is currently in active production.

Q: Does the extended temperature range of the 9250A-225-RC affect circuit performance?

A: The 9250A-225-RC operates from -55°C to 125°C compared to the original -55°C to 105°C. This extended range does not degrade performance within the original operating window and provides additional thermal margin for applications requiring higher temperature operation.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the 9250-225-RC and 9250A-225-RC are ROHS3 compliant and meet REACH unaffected status.

Q: What is the inventory status of these components?

A: The 9250-225-RC (obsolete) has 1037 pieces available. The 9250A-225-RC (active production) has 3280 pieces in stock, providing superior supply chain continuity for new designs and production requirements.