CTDLW21SF-371T01

Common Mode Chokes Overview

The CTDLW21SF-371T01 is a surface-mount common mode choke manufactured by Central Technologies. It features a two-line configuration designed for filtering unwanted signals on transmission lines. The component exhibits an impedance of 370 Ohms at 100 MHz and supports a current rating of 280 mA. Its direct current resistance (DCR) is specified as 450 mOhms. The device operates within a temperature range of -40°C to +105°C and utilizes a compact SMD package with dimensions of 2.05 × 1.25 × 1.2 mm.

Common Mode Chokes Feature Summary

• Surface mount construction for automated assembly integration
• Two-line topology for differential signal path filtering
• High impedance characteristic at 100 MHz for noise suppression

Common Mode Chokes Applications

• Filtering common mode noise on high-speed data transmission lines
• EMI suppression in portable electronic devices
• Signal integrity enhancement in communication interfaces

Common Mode Chokes Procurement Notes

Verify the complete part number including suffixes such as T01, which may indicate specific tape-and-reel packaging or date code variations. Confirm that the required impedance tolerance and current ratings align with the circuit design specifications before ordering. Ensure compatibility with standard reflow soldering profiles for SMD components.

Common Mode Chokes Selection Notes

Select this component when a low-profile, two-line common mode choke is required for space-constrained designs. The 280 mA current rating suits low-power signal lines rather than power delivery applications. Consider the 370 Ohm impedance value relative to the target frequency band to ensure effective attenuation of electromagnetic interference without degrading signal quality.

Common Mode Chokes Part Context

This component belongs to the CTDLW series of common mode chokes from Central Technologies. The series offers various impedance values and current ratings tailored for different EMI suppression needs. The CTDLW21SF variant specifically denotes a surface-mount form factor with defined physical dimensions suitable for modern PCB layouts.

Common Mode Chokes Replacement Considerations

Cross-reference with other Central Technologies parts in the CTDLW series if impedance or current requirements differ. Verify pinout and footprint compatibility before substituting with components from other manufacturers to ensure mechanical and electrical fit.