RN122-0.8-02-39M

Overview

The Schaffner RN122-0.8-02-39M is a through-hole common mode choke designed for power line filtering. It features an inductance of 39 mH at a test frequency of 10 kHz, with a tolerance range of -30% to +50%. The component supports a maximum DC current of 800 mA and exhibits a typical maximum DC resistance of 1 Ohm. Constructed with two windings on a toroidal ferrite core, it provides current compensated inductance. The unit measures 27 mm x 28 mm x 16.5 mm and operates within a temperature range of -40°C to +100°C.

Feature Summary

• Provides current compensated inductance via two windings on a toroidal ferrite core
• Designed for series connection with AC power phase or neutral lines
• Filters both common mode and asymmetric noise signals

Applications

• Power line electromagnetic compatibility filtering
• AC power input stages requiring common mode suppression
• Electronic equipment noise reduction applications

Procurement Notes

Verify the specific part number RN122-0.8-02-39M against official Schaffner documentation to confirm electrical parameters and physical dimensions. Ensure the procurement source provides valid manufacturer traceability. Cross-reference the alias 816511-SF if applicable to your supply chain records. Confirm RoHS compliance status through the latest datasheet before finalizing orders.

Selection Notes

Select this component when a 39 mH inductance value is required for common mode noise suppression in AC power circuits. The 800 mA current rating suits moderate power applications. Verify that the through-hole mounting style and horizontal orientation fit the PCB layout constraints. Ensure the operating temperature range meets the environmental requirements of the target system.

Part Context

This component belongs to the Schaffner RN series of common mode chokes. The series utilizes toroidal ferrite cores with wound inductors to achieve current compensation. These components are engineered for integration into AC power lines to mitigate electromagnetic interference. The RN designation indicates a specific form factor and performance class within the Schaffner EMC portfolio.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching inductance, current rating, and physical footprint before considering alternative components.