DEA252450BT-2080B2

Overview

The TDK DEA252450BT-2080B2 is a surface-mount LTCC bandpass filter designed for RF signal conditioning. It operates at a center frequency of 2.45 GHz with a bandwidth of 100 MHz and a nominal impedance of 50 ohms. The component features an insertion loss of 1.56 dB and is housed in a 1008 (2520 metric) package with four pads. It supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Utilizes Low-Temperature Co-fired Ceramic (LTCC) technology for compact RF filtering
• Provides precise bandpass characteristics centered at 2.45 GHz
• Designed for surface-mount integration in high-frequency circuits

Applications

• Wireless LAN modules
• Bluetooth device interfaces
• ISM band communication systems

Procurement Notes

This component has been officially declared End-of-Life by TDK Corporation, with discontinuation announcements dating back to June 2022. Availability is restricted to remaining stock or secondary markets. Engineers must verify current supply status through authorized distributors before design finalization. Procurement planning should account for the lack of future manufacturing support and potential lead time variability associated with obsolete inventory.

Selection Notes

Designers requiring active production components should evaluate alternative filters within the DEA series or other compatible LTCC bandpass solutions. Selection criteria must prioritize matching the 2.45 GHz center frequency, 100 MHz bandwidth, and 50-ohm impedance requirements. Package compatibility with the 1008 footprint and thermal performance within the specified -40°C to +85°C range are essential technical constraints for successful circuit integration.

Part Context

The DEA252450BT-2080B2 belongs to TDK's DEA series of RF filters, which are widely used in wireless communication applications. This specific model targets the 2.4 GHz ISM band, commonly utilized in Wi-Fi and Bluetooth technologies. As an LTCC component, it offers reliable performance in miniaturized electronic assemblies where space constraints and signal integrity are critical factors for system design.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific discontinued model were not identified in the provided documentation. Designers should consult TDK's official obsolescence notices or contact authorized distributors for validated replacement recommendations that meet identical electrical and mechanical specifications.