DEA202450BT-7041E1

Overview

The TDK DEA202450BT-7041E1 is a surface-mount bandpass RF filter designed for the 2.4 GHz ISM band, specifically centered at 2.441 GHz. It utilizes Low Temperature Co-fired Ceramic (LTCC) technology to provide high performance in a compact form factor. The component features a 0805 (2012 Metric) package with six printed circuit board pads. Key electrical specifications include a center frequency of 2.441 GHz, a bandwidth of 78 MHz, and an insertion loss of 5 dB. It operates within a temperature range of -40°C to +85°C and maintains a 50 Ohm impedance.

Feature Summary

• Utilizes LTCC technology for stable RF filtering characteristics
• Designed for Bluetooth applications in the 2.4 GHz ISM band
• Compact 0805 surface-mount package for space-constrained designs

Applications

• Bluetooth wireless communication modules
• ISM band signal conditioning circuits
• RF front-end filtering for 2.4 GHz devices

Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturing sites or assembly processes may change via PCN. Confirm RoHS3 compliance status for current production lots. Ensure the 0805 footprint matches the target PCB layout. Check for end-of-life notices if long-term supply stability is required, as some variants in this series have reached obsolescence.

Selection Notes

Select this component when a narrow 78 MHz bandwidth is required around 2.441 GHz. The 5 dB insertion loss is higher than wider-bandwidth alternatives; verify system link budget compatibility. The 0805 size offers a balance between thermal dissipation and board real estate. Consider the -40°C to +85°C operating range against environmental conditions.

Part Context

This part belongs to the TDK DEA series of LTCC RF filters. These components are engineered for high reliability in consumer electronics and industrial applications requiring precise frequency selection. The series typically includes various center frequencies and bandwidths tailored for Wi-Fi, Bluetooth, and Zigbee standards.

Replacement Considerations

Direct substitutes must match the 0805 package, 2.441 GHz center frequency, and 78 MHz bandwidth. Verify that alternative LTCC filters maintain similar insertion loss and impedance characteristics. Cross-reference pinout configurations to ensure compatibility with existing PCB footprints.