PAT1220-C-7DB-T5

Overview

The PAT1220-C-7DB-T5 is a surface-mount RF attenuator manufactured by Susumu, designed for signal level adjustment in wireless and radio frequency circuits. This component provides a fixed attenuation value of 7 dB with a nominal impedance of 50 Ohms. It operates across a frequency range from 0 Hz to 10 GHz, maintaining a maximum Voltage Standing Wave Ratio (VSWR) of 1.3. The device is housed in an 0805 (2012 Metric) package suitable for SMD/SMT installation. It supports a wide operating temperature range from -55°C to +125°C and complies with RoHS standards.

Feature Summary

• Provides precise 7 dB signal attenuation for RF circuit applications
• Operates effectively within a broad frequency spectrum up to 10 GHz
• Features low VSWR for improved signal integrity and impedance matching
• Supports high-temperature environments with extended operational limits

Applications

• RF signal conditioning in wireless communication systems
• Impedance matching networks in radio frequency integrated circuits
• Signal level adjustment in test and measurement equipment
• Attenuation stages in microwave and millimeter-wave circuits

Procurement Notes

Verify the exact part number PAT1220-C-7DB-T5 against manufacturer datasheets to ensure compatibility with specific design requirements. Confirm that the 0805 package dimensions align with PCB layout constraints. Check for RoHS compliance documentation if environmental regulations apply. Ensure that the 50 Ohm impedance matches the system architecture to prevent signal reflection issues during integration.

Selection Notes

Select this component when a fixed 7 dB attenuation is required in compact RF designs. The 0805 footprint offers space efficiency for dense layouts. Consider the 10 GHz upper frequency limit for high-speed applications. The wide temperature range makes it suitable for industrial or automotive environments. Verify that the 50 Ohm impedance standard matches the surrounding circuitry to maintain optimal performance.

Part Context

This component belongs to the Susumu PAT series of thin-film chip resistors and attenuators. The series is known for high precision and stability in RF applications. The PAT1220-C variant specifically targets surface-mount implementations requiring consistent electrical characteristics over temperature variations. It complements other values in the series for flexible circuit design.

Replacement Considerations

TFA20C03DBER by Ohmite is listed as a parameter equivalent alternative for related attenuator needs, though specific substitution requires verification of exact attenuation values and impedance matching.