DEA162500LT-1217A1

Overview

The TDK DEA162500LT-1217A1 is a multilayer low-pass filter designed for 2.4 GHz wireless LAN and Bluetooth applications. It operates within the 2400–2500 MHz frequency band with a nominal characteristic impedance of 50 Ω. The component features a compact 0603 (1.6 x 0.8 mm) surface-mount package with six pins, including dedicated ground connections for improved shielding. Typical insertion loss in the passband is 0.35 dB, with a maximum of 0.48 dB. Return loss reaches a typical value of 17.5 dB. Attenuation provides at least 35 dB suppression in the 4800–5000 MHz range and 25 dB in the 7200–7500 MHz range. The device supports a maximum power handling capacity of 1 W and complies with RoHS directives.

Feature Summary

• Multilayer ceramic construction optimized for high-frequency signal integrity in compact RF circuits
• Dedicated ground pin configuration to minimize electromagnetic interference and enhance isolation
• Low insertion loss characteristics preserving signal strength in the 2.4 GHz operational band
• High attenuation performance effectively suppressing harmonic and out-of-band interference signals

Applications

• Wireless Local Area Network (W-LAN) transceivers operating at 2.4 GHz
• Bluetooth module output stages for harmonic suppression
• RF front-end filtering in mobile communication devices
• Signal conditioning in wireless sensor networks

Procurement Notes

Verify the specific suffix '1217A1' against the manufacturer's current datasheet to ensure compatibility with design requirements. Confirm that the 0603 footprint matches the PCB layout specifications. Check for any recent Product Change Notifications (PCN) regarding material or process updates. Ensure the selected variant meets the required thermal and electrical ratings for the target application environment.

Selection Notes

Select this component when designing for 2.4 GHz ISM band applications requiring strict size constraints. The 0603 package offers a balance between performance and board space efficiency. Consider the 1 W power rating for moderate power levels. Verify impedance matching at 50 Ω to minimize reflections. Evaluate the attenuation specs against regulatory emission limits for the target market.

Part Context

This part belongs to TDK's DEA series of multilayer low-pass filters, specifically engineered for RF applications. The series utilizes advanced ceramic materials to achieve stable performance across temperature variations. The DEA162500LT-1217A1 is tailored for Wi-Fi and Bluetooth standards, providing essential harmonic filtering to ensure compliance with electromagnetic interference regulations in consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers include DEA162500LT-1212A1 from TDK. Alternative options from other manufacturers may exist but require careful verification of electrical parameters and physical dimensions to ensure functional equivalence.