PAT-2+

Overview

The Mini-Circuits PAT-2+ is a surface-mount fixed attenuator designed for RF applications. It provides a nominal attenuation of 2 dB with a maximum operating frequency of 7 GHz. The device features a 50 Ohm impedance and supports DC to 7 GHz operation. It handles 1 Watt of RF power at +25°C, derating linearly to 0.1 Watt at +100°C. Key electrical specifications include a maximum VSWR of 1.5 and an attenuation flatness defined as variation over the band divided by 2.

Feature Summary

• Wideband performance from DC to 7 GHz
• Excellent voltage standing wave ratio (VSWR)
• Surface-mount package suitable for automated assembly

Applications

• RF signal attenuation in test equipment
• Power control in communication systems
• Signal conditioning in laboratory environments

Procurement Notes

Verify the specific datasheet version and mechanical dimensions against your PCB layout requirements. Confirm that the thermal derating curve aligns with your system's operating temperature range to ensure reliable power handling. Check RoHS compliance status if required by your manufacturing standards. Ensure the surface-mount footprint matches the manufacturer's recommended land pattern to guarantee proper soldering and electrical connection.

Selection Notes

Select this component when a precise 2 dB attenuation is required within a wide bandwidth up to 7 GHz. Consider the 50 Ohm impedance match for standard RF systems. Evaluate the thermal management needs, as power handling decreases significantly at elevated temperatures. Compare the VSWR specifications against other attenuators to ensure signal integrity meets your application's strict reflection limits.

Part Context

The PAT-2+ belongs to Mini-Circuits' family of fixed attenuators, which offer various attenuation values and form factors. These components are engineered for consistency and reliability in high-frequency circuits. The '+' suffix typically indicates lead-free and halogen-free construction, adhering to environmental standards. This series is widely used in commercial and industrial RF designs requiring stable signal levels.

Replacement Considerations

Direct substitutes include other Mini-Circuits models with identical 2 dB attenuation and 7 GHz bandwidth, such as those in the same SMT package family. Verify that any alternative part maintains the same 50 Ohm impedance and physical footprint to avoid PCB redesign. Cross-reference the VSWR and power handling specs to ensure equivalent performance in the target circuit.