Bourns 9250-125-RC Equivalent & Substitute Parts

Part Overview

The Bourns 9250-125-RC is a 1.2 mH shielded drum core wirewound inductor rated for 60 mA continuous current with a maximum DC resistance of 22.1 Ohm. This through-hole axial component is designed for applications requiring controlled inductance with ferrite core shielding in compact form factors. The 9250-125-RC has reached obsolete product status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

9250-125-RC

Bourns Inc.In Stock: 11619250-125-RC Datasheet

Current PartRFQ

9250A-125-RC

Bourns Inc.In Stock: 10489250A-125-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns 9250A-125-RC qualifies as a direct substitute for the 9250-125-RC based on the following critical parameters:

Electrical equivalence is established through identical inductance (1.2 mH), inductance tolerance (±10%), current rating (60 mA), saturation current (35 mA), DC resistance (22.1 Ohm Max), quality factor (45 @ 250 kHz), and self-resonant frequency (1.5 MHz). Both components feature ferrite core construction with shielding and are specified for 250 kHz inductance frequency testing.

Mechanical compatibility is confirmed through identical axial through-hole mounting, package dimensions (0.162" Dia x 0.410" L / 4.11 mm x 10.41 mm), and form factor. Both components maintain ROHS3 compliance and REACH unaffected status.

The primary distinction is product status: the 9250-125-RC is obsolete, while the 9250A-125-RC is active. The 9250A-125-RC employs molded construction versus the drum core design of the original part, and extends the operating temperature range to -55°C ~ 125°C (compared to -55°C ~ 105°C for the 9250-125-RC).

Parameter Comparison

Engineering Selection Recommendations

The 9250A-125-RC is the appropriate substitute for the obsolete 9250-125-RC. Both components maintain identical electrical specifications and mechanical form factors, ensuring direct compatibility in through-hole PCB applications. The 9250A-125-RC offers the advantage of active product status with extended temperature range capability (-55°C ~ 125°C versus -55°C ~ 105°C), providing improved operational margin in temperature-sensitive applications. Both parts maintain ROHS3 compliance and REACH unaffected certification status. Selection of the 9250A-125-RC eliminates obsolescence risk while preserving all critical electrical and mechanical parameters required for circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-125-RC directly replace the 9250-125-RC in existing designs?

A: Yes. Both components share identical inductance (1.2 mH), current rating (60 mA), DC resistance (22.1 Ohm Max), quality factor (45 @ 250 kHz), and physical dimensions (0.162" Dia x 0.410" L). The axial through-hole mounting and ferrite core shielding are equivalent. The 9250A-125-RC is suitable for direct substitution.

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

A: The 9250-125-RC uses drum core wirewound construction, while the 9250A-125-RC employs molded construction. Both achieve identical electrical performance specifications. Molded construction in the 9250A-125-RC provides improved mechanical robustness and is the current manufacturing standard for this inductance value.

Q: Are there temperature range differences between these parts?

A: Yes. The 9250-125-RC operates from -55°C to 105°C, while the 9250A-125-RC extends to -55°C to 125°C. For applications requiring operation above 105°C, the 9250A-125-RC provides additional thermal margin.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 9250-125-RC and 9250A-125-RC are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: Why is the 9250-125-RC listed as obsolete?

A: The 9250-125-RC has been superseded by the 9250A-125-RC in Bourns' product portfolio. The 9250A-125-RC represents the current active offering for this inductance specification and is the recommended selection for new designs and ongoing procurement.