PAT1220-C-3DB-T5

Overview

The PAT1220-C-3DB-T5 is a surface-mount RF attenuator manufactured by Susumu, designed for high-frequency applications. It provides a fixed attenuation value of 3 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 and supports a power handling capacity of 100 mW. The device functions reliably across a temperature range of -55°C to +125°C.

Feature Summary

• Provides precise 3 dB signal attenuation for RF circuitry
• Operates effectively up to 10 GHz frequency range
• Features low VSWR for improved signal integrity
• Supports SMD/SMT installation methods

Applications

• RF signal conditioning in communication systems
• Impedance matching networks
• Test and measurement equipment
• Wireless infrastructure components

Procurement Notes

Verify the specific suffix T5 against official Susumu documentation to confirm packaging configuration. Ensure the 0805 footprint aligns with PCB design requirements. Confirm RoHS compliance status through current datasheets. Cross-reference the 50 Ohm impedance specification with system design parameters. Validate the 100 mW power rating against thermal management constraints.

Selection Notes

Select this component when a fixed 3 dB attenuation is required in compact RF designs. The 0805 package size suits space-constrained layouts. Consider the 10 GHz upper frequency limit for high-speed signal paths. Evaluate the 100 mW power handling capability for signal levels. Check compatibility with standard SMT reflow processes.

Part Context

This part belongs to the Susumu PAT series of thin-film chip attenuators. The series offers various attenuation values in standardized packages. The PAT1220-C-3DB-T5 specifically targets 50 Ohm systems requiring stable performance at microwave frequencies. It complements other variants in the family with different dB ratings.

Replacement Considerations

TFA20C03DBER by Ohmite is listed as a parameter-equivalent substitute. Verify electrical specifications and physical dimensions before substitution.