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Product Detailed Parameters
- Description：RF FILTER BAND PASS 3.55GHZ 0805
- Series：DEA
- Mfr：TDK Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency：3.55GHz
- Bandwidth：500MHz
- Filter Type：Band Pass
- Ripple：-
- Insertion Loss：1.45dB
- Mounting Type：Surface Mount
- Package / Case：0805 (2012 Metric), 6 PC Pad
- Size / Dimension：0.079" L x 0.049" W (2.00mm x 1.25mm)
- Height (Max)：0.026" (0.65mm)
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Overview
The DEA203550BT-2224A4-H is a surface-mount bandpass RF filter manufactured by TDK Corporation. It operates at a center frequency of 3.55 GHz with a bandwidth of 500 MHz. The component features a 50 Ohm impedance and an insertion loss of 1.45 dB. It utilizes a 6-pin SMD/SMT configuration in a compact 0805 (2 mm x 1.25 mm) package. The device supports board mounting and functions within a temperature range of -40°C to +90°C.
Feature Summary
- Provides radio frequency signal conditioning through bandpass filtering capabilities.
- Designed for EMI and RFI suppression applications.
- Utilizes Low Temperature Co-fired Ceramic (LTCC) technology for stable performance.
Applications
- Wireless communication systems
- Mobile phone infrastructure
- RFID readers
Procurement Notes
Verify the specific datasheet version when sourcing, as manufacturer specifications may undergo revisions. Confirm that the 0805 footprint matches your PCB layout constraints. Ensure compatibility with standard reflow soldering profiles for 6-pin SMD components. Cross-reference the part number DEA203550BT-2224A4-H with official TDK documentation to validate current production status and RoHS compliance details before finalizing procurement.
Selection Notes
Select this component for designs requiring precise filtering around the 3.55 GHz frequency band. The 500 MHz bandwidth offers a balance between selectivity and signal pass-through. Consider the 0805 package size for space-constrained layouts where larger filters are unsuitable. The 50 Ohm impedance ensures proper matching with standard RF transmission lines. Evaluate the thermal operating range against your system's environmental conditions.
Part Context
This component belongs to the TDK DEA series of RF filters. These devices are engineered using LTCC technology, which allows for high-density integration and reliable performance in demanding RF environments. The series is widely used in consumer electronics and telecommunications equipment requiring effective interference mitigation.
Replacement Considerations
Consult official TDK substitution guides for verified alternatives. Generic equivalents may not match the specific 3.55 GHz center frequency or 500 MHz bandwidth requirements. Verify pinout compatibility for the 6-pin SMD configuration before considering any cross-brand replacements.
FAQ
What is the center frequency of the DEA203550BT-2224A4-H?
The center frequency is 3.55 GHz.
What packaging style does this filter use?
It uses a 6-pin Surface Mount Device (SMD) package in the 0805 (2012 Metric) dimension.
