DEA205425BT-1209B2

Overview

The DEA205425BT-1209B2 is a multilayer chip band pass filter manufactured by TDK Corporation, designed for 5.0 GHz wireless LAN applications. It operates with a center frequency of 5.425 GHz and provides a bandwidth of 1050 MHz. The component features a 50 Ohm impedance and utilizes SMD/SMT termination style within an EIA 0805 (2.0x1.25mm) package. It includes four PC pads for surface mounting.

Feature Summary

• Multilayer construction for compact RF filtering
• Designed specifically for 5.0 GHz W-LAN systems
• Surface mount termination for automated assembly

Applications

• 5.0 GHz Wireless LAN modules
• RF front-end filtering in wireless communication devices
• Band selection in WLAN transceivers

Procurement Notes

Verify current manufacturing status as the part may be obsolete. Confirm availability of recommended substitutes from the manufacturer if direct procurement is not possible. Ensure compatibility with existing PCB layouts when considering replacement components.

Selection Notes

Select this component for applications requiring precise bandpass characteristics at 5.425 GHz. Consider the 0805 package size for space-constrained designs. Verify impedance matching requirements for the specific circuit design to ensure optimal signal integrity.

Part Context

This component belongs to TDK's DEA series of multilayer band pass filters. These filters are engineered for high-frequency applications, offering stable performance in wireless local area network environments. The series supports various frequency bands tailored for different regional standards.

Replacement Considerations

Recommended substitutes are available from the manufacturer. Verify electrical specifications and physical dimensions before substitution to ensure compatibility with the original design requirements.