PCAT0404X-4R0BT

Overview

The PCAT0404X-4R0BT is a surface mount RF attenuator manufactured by Venkel. It provides a nominal attenuation of 4dB with an impedance of 50 Ohms. The device operates within a frequency range of 0 Hz to 3 GHz and supports a maximum power handling capacity of 100mW. It utilizes a 0404 (1010 Metric) convex package design, suitable for compact circuit layouts.

Feature Summary

• Provides precise 4dB signal attenuation for RF applications
• Operates across a wide frequency spectrum up to 3 GHz
• Features a compact 0404 convex surface mount package

Applications

• RF signal conditioning in communication systems
• Impedance matching networks requiring specific attenuation levels
• Test and measurement equipment signal path adjustment

Procurement Notes

Verify the exact part number suffix against manufacturer documentation to ensure correct tolerance and packaging specifications. Confirm that the 0404 package dimensions align with your PCB footprint requirements. Cross-reference the 100mW power rating with your system's thermal constraints to prevent component failure during operation.

Selection Notes

Select this component when a fixed 4dB attenuation is required at 50 Ohms impedance. Ensure the operating frequency does not exceed 3 GHz. Consider the 0404 package size for space-constrained designs. Verify power handling capabilities match the application's signal strength to maintain performance integrity.

Part Context

This component belongs to Venkel's PCAT series of thin-film chip attenuators. These devices are designed for high-reliability applications requiring stable attenuation values over temperature variations. The series offers various attenuation values and package sizes to suit different RF circuit needs.

Replacement Considerations

Direct substitutes must match the 4dB attenuation value, 50 Ohm impedance, and 0404 package dimensions. Check equivalent parts from other manufacturers for compatible frequency ranges and power ratings. Ensure any replacement maintains the same convex profile if board clearance is critical.