PAT1220-C-1DB-T5

Overview

The PAT1220-C-1DB-T5 is a surface-mount RF attenuator manufactured by Susumu, designed for high-frequency signal processing applications. It provides a fixed attenuation value of 1 dB with a nominal impedance of 50 Ohms. The component operates within a frequency range from 0 Hz to 10 GHz and maintains a maximum Voltage Standing Wave Ratio (VSWR) of 1.3. It is housed in an 0805 (2012 Metric) package suitable for SMD/SMT installation. The device supports a power rating of 100 mW and functions reliably across an operating temperature range of -55°C to +125°C.

Feature Summary

• Fixed 1 dB attenuation with 50 Ohm impedance for precise signal level control
• Wideband operation extending from DC to 10 GHz with low VSWR
• Robust thermal performance supporting operation up to +125°C
• Compact 0805 surface-mount footprint for automated assembly

Applications

• RF signal conditioning in wireless communication systems
• Impedance matching networks in microwave circuits
• Signal level adjustment in test and measurement equipment
• Attenuation stages in radar and satellite communication modules

Procurement Notes

Verify the specific suffix T5 against official Susumu documentation to confirm tape-and-reel packaging specifications. Ensure the procurement channel sources genuine components with valid RoHS compliance records. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit substitutes. Confirm that the received lot matches the required 0805 package dimensions and electrical tolerances defined in the datasheet.

Selection Notes

Select this component when a precise 1 dB reduction is required in 50 Ohm systems operating up to 10 GHz. The wide temperature range makes it suitable for industrial environments. Consider the 0805 package size for board space constraints. Verify that the 100 mW power rating aligns with the expected signal levels in the target circuit to prevent overheating or performance degradation during continuous operation.

Part Context

This part belongs to the Susumu PAT series of thin-film chip attenuators. The series offers various fixed attenuation values in standard impedances. These components are engineered for stability and repeatability in RF applications. The PAT1220-C-1DB-T5 specifically addresses needs for minimal signal loss with high precision. It complements other passive components in modern electronic designs requiring reliable signal integrity.

Replacement Considerations

TFA20C03DBER by Ohmite is listed as a parameter-equivalent alternative.