ALC2012-900-2P-T00

Overview

The ALC2012-900-2P-T00 is a surface-mount signal line common mode choke from TDK's ALC series. It features a 2-line configuration with an impedance of 90 Ohms at 100 MHz and a maximum DC current rating of 400 mA. The component has a maximum DC resistance of 190 mOhm and operates within a temperature range of -40°C to +85°C. Its physical dimensions are 2.0 mm x 1.2 mm x 1.2 mm, designed for compact PCB integration.

Feature Summary

• Provides effective suppression of electromagnetic interference on high-speed data lines
• Compact surface-mount design suitable for space-constrained applications
• Low DC resistance minimizes signal loss in power delivery paths

Applications

• Ethernet line filtering
• USB interface protection
• High-speed digital signal line noise reduction

Procurement Notes

Verify the specific impedance value (65 Ohm vs 90 Ohm) against the official TDK datasheet, as distributor listings show conflicting specifications. Confirm the package dimensions and terminal type match the design requirements before ordering. Ensure the supplier provides genuine TDK components with traceable documentation.

Selection Notes

Select this component when low-profile filtering is required for differential pairs carrying up to 400 mA. Consider the trade-off between impedance performance and DC resistance for signal integrity. Verify compatibility with automated pick-and-place equipment due to the small 0805 footprint.

Part Context

This part belongs to TDK's ALC series of common mode chokes, which are engineered for protecting sensitive electronic circuits from common mode noise. The series offers various impedance ratings and current capabilities to suit different interface standards and bandwidth requirements.

Replacement Considerations

Check for direct substitutes within the ALC series or equivalent parts from other manufacturers offering similar 0805 footprints and 90 Ohm impedance. Ensure replacement parts meet the same current rating and temperature specifications.