RN143-2-02-10M

Overview

The Schaffner RN143-2-02-10M is a current compensated common mode choke from the RN series, designed for AC power line applications. It features an inductance of 10 mH at a test frequency of 10 kHz and supports a maximum DC current of 2 A. The component has a typical DC resistance of 240 mOhms. It utilizes a horizontal through-hole mounting style with four pins. The physical dimensions are 33.10 mm in length, 32.50 mm in width, and a maximum height of 20.00 mm. The operating temperature range spans from -40°C to +100°C.

Feature Summary

• Current compensated design utilizing two windings on a toroidal ferrite core for effective common mode noise suppression.
• Horizontal chassis or PCB mounting configuration with through-hole termination for robust mechanical stability.
• High saturation resistance and thermal performance suitable for demanding power line environments.

Applications

• AC power line filtering in electronic equipment
• EMI suppression for single-phase power inputs
• Common mode noise reduction in industrial control systems

Procurement Notes

Verify the specific part number RN143-2-02-10M against official TE Connectivity / Schaffner documentation to confirm electrical parameters and mechanical footprint. Ensure compatibility with your board layout regarding the horizontal pin configuration and clearance requirements. Cross-reference datasheets for any recent manufacturing updates or compliance certifications relevant to your region.

Selection Notes

Select this component when a high-inductance common mode choke is required for 2A applications with horizontal mounting constraints. The RN143 series offers a compact form factor compared to larger vertical chokes while maintaining significant noise attenuation capabilities. Consider the 240 mOhm DC resistance impact on voltage drop within your specific circuit design before finalizing the selection.

Part Context

This component belongs to the Schaffner RN series of current compensated RFI suppression chokes. These devices are engineered to provide high impedance to common mode signals while allowing differential mode currents to pass with minimal loss. The RN143 variant specifically addresses space-constrained designs requiring horizontal orientation and robust through-hole integration for power line protection.

Replacement Considerations

Consult official substitution guides for equivalent RN series parts with matching inductance and current ratings. Verify that alternative components maintain the same horizontal mounting profile and pinout configuration to ensure mechanical compatibility without redesigning the PCB footprint.

FAQ

What is the inductance tolerance for the RN143-2-02-10M?

Official datasheets specify the inductance value as 10 mH measured at 10 kHz. Specific tolerance percentages should be confirmed via the manufacturer's detailed specification sheet.

Is the RN143-2-02-10M shielded?

The RN series typically utilizes toroidal ferrite cores which provide inherent magnetic shielding characteristics, reducing external electromagnetic interference emission compared to open-core designs.