PE7387-20

Overview

The Pasternack PE7387-20 is a fixed RF attenuator designed for unidirectional signal reduction. It features Type N male-to-female connectors and operates within a frequency range of 0 Hz to 3 GHz. The unit provides a maximum attenuation of 20 dB with a nominal impedance of 50 ohms. It utilizes a black anodized aluminum heatsink body, enabling a power rating of 200 Watts at the specified attenuation value. The device maintains a VSWR of 1.15:1 and functions reliably between -55°C and +125°C.

Feature Summary

• Unidirectional signal attenuation capability
• High-power thermal management via aluminum heatsink
• Robust mechanical construction with Type N connectors

Applications

• RF test and measurement setups requiring precise signal reduction
• Microwave communication systems operating up to 3 GHz
• Power amplifier output stage protection

Procurement Notes

Verify the specific datasheet version for the PE7387-20 to confirm current RoHS compliance status and exact dimensional tolerances. Ensure that the application environment does not exceed the stated maximum operating temperature of +125°C or the 200 Watt power limit. Confirm connector gender alignment matches the system requirements before finalizing procurement orders.

Selection Notes

Select this model when high power handling is required alongside significant attenuation in a compact form factor. The 20 dB value suits applications needing substantial signal reduction without excessive heat dissipation issues compared to lower attenuation values. Consider the unidirectional nature for proper signal flow directionality in the circuit design.

Part Context

This component belongs to the Pasternack PE7387 series of fixed attenuators. The series offers various attenuation levels from 10 dB to 40 dB, all sharing the same physical footprint and connector interface. This specific part represents the mid-range attenuation option within the high-power variant of the lineup.

Replacement Considerations

Compatible substitutes include other 20 dB fixed attenuators with Type N connectors rated for similar power levels. Verify that alternative models support the same 3 GHz frequency range and maintain comparable VSWR specifications to ensure signal integrity preservation.