ICM1812ER900V

Common Mode Chokes Overview

The Vishay Dale ICM1812ER900V is a single-channel common mode choke filter designed for surface mount technology. It features an impedance of 90 Ohms with a tolerance of 25 percent, measured at a test frequency of 100 MHz. The component utilizes a ferrite core and operates within a temperature range of -40 C to +125 C. Its maximum DC resistance is specified as 50 mOhms. The device is housed in an unshielded 1812 package, measuring 4.5 mm in length, 3.2 mm in width, and 2.8 mm in height.

Common Mode Chokes Feature Summary

• Utilizes a ferrite core material for effective common mode noise suppression in high-frequency applications.
• Designed for surface mount installation on printed circuit boards using SMD/SMT termination types.
• Constructed as an unshielded component to minimize physical footprint while maintaining signal integrity.

Common Mode Chokes Applications

• DC/DC Power Supplies
• Signal Line Filtering
• Electromagnetic Interference Suppression

Common Mode Chokes Procurement Notes

Verify the specific suffix 'E3' indicates lead-free compliance when confirming RoHS status against current manufacturer declarations. Ensure the ordering quantity aligns with available packaging formats such as cut tape or reel options provided by distributors. Cross-reference the 1812 package dimensions with PCB layout requirements to guarantee mechanical fit during assembly processes.

Common Mode Chokes Selection Notes

Select this component when a 90 Ohm impedance level is required for common mode noise attenuation at 100 MHz. The wide operating temperature range supports deployment in environments subject to thermal variation. Consider the low DC resistance value for applications where minimal voltage drop across the filter is critical for power efficiency.

Common Mode Chokes Part Context

This part belongs to the ICM1812 series of common mode chokes manufactured by Vishay / Dale. The series offers various impedance values within the same 1812 surface mount footprint, allowing designers to standardize board layouts while adjusting filtering characteristics. It falls under the broader category of inductors, chokes, and coils used for electromagnetic interference management.

Common Mode Chokes Replacement Considerations

ICM1812ER800V serves as a direct substitute offering identical physical dimensions and electrical characteristics except for an 80 Ohm impedance rating instead of 90 Ohms. Designers must verify that the slight impedance difference does not impact the specific noise filtering requirements of the target circuit application.