DEA162450BT-2169A4

Overview

The DEA162450BT-2169A4 is a multilayer chip bandpass filter manufactured by TDK Corporation, designed for signal conditioning applications. It operates at a center frequency of 2.45 GHz with a bandwidth of 100 MHz and features a 50 ohm impedance. The component utilizes surface mount technology (SMD/SMT) and is housed in a compact 0603 (1608 metric) package with four pads. It supports operation within a temperature range of -40°C to +85°C. This device belongs to the DEA series and is RoHS compliant.

Feature Summary

• Provides RF signal filtering through LTCC bandpass technology
• Designed for high-frequency signal conditioning at 2.45 GHz
• Utilizes a compact surface-mount footprint for space-constrained designs

Applications

• Wireless LAN systems operating in the 2.4 GHz ISM band
• Bluetooth communication modules
• RF front-end signal conditioning circuits

Procurement Notes

Verify current availability status as this component is scheduled for obsolescence and will be discontinued by the manufacturer. Confirm that existing stock levels meet project requirements before finalizing procurement plans. Ensure compatibility with existing PCB layouts and soldering profiles. Check for any pending product change notices or manufacturing site updates that may affect long-term supply chain stability.

Selection Notes

Select this component only if the specific 2.45 GHz center frequency and 100 MHz bandwidth align with system requirements. Consider the 0603 package size constraints during layout design. Evaluate thermal performance within the specified -40°C to +85°C operating range. Verify impedance matching for 50 ohm systems. Note that due to end-of-life status, alternative solutions should be evaluated for new designs.

Part Context

This part belongs to TDK's DEA series of LTCC bandpass filters, which are engineered for RF applications requiring precise frequency selection. The DEA series typically offers low insertion loss and high selectivity. These components are widely used in wireless communication devices where reliable signal filtering is critical for maintaining transmission integrity and reducing interference from adjacent channels.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the scheduled obsolescence, engineers should evaluate equivalent bandpass filters from other manufacturers or newer TDK series components that offer similar electrical characteristics and package dimensions.