WA04P001XBTL

Overview

The WA04P001XBTL is a fixed RF attenuator manufactured by Walsin Technology Corporation. It provides a nominal attenuation of 1 dB with a tolerance of +/-0.3 dB. The component operates at a characteristic impedance of 50 Ohms and supports frequencies up to 2000 MHz or 3 GHz depending on the specific datasheet version. It features a maximum input power of 16.02 dBm (CW) and a voltage standing wave ratio (VSWR) of 1.3. The device utilizes a ceramic construction in an SMD package, specifically identified as 0404 (1010 Metric).

Feature Summary

• Fixed attenuation value for precise signal level control.
• Compact surface-mount design for space-constrained PCB layouts.
• Ceramic substrate construction for thermal stability.

Applications

• RF signal conditioning in wireless communication modules.
• Impedance matching networks in microwave circuits.
• Signal level adjustment in test and measurement equipment.

Procurement Notes

Verify the specific frequency rating (2000 MHz vs 3 GHz) against the manufacturer's current datasheet, as documentation varies. Confirm the package code matches the required footprint. Ensure compliance with RoHS standards if required by the end product specifications. Cross-reference the part number suffix to confirm the exact reel or cut-tape packaging configuration intended for assembly.

Selection Notes

Select this component when a low attenuation value near 1 dB is required in a compact form factor. Consider the 50 Ohm impedance requirement for system compatibility. Evaluate the power handling capabilities relative to the application's CW input levels. Compare VSWR performance against system return loss requirements. Verify temperature range suitability for the operating environment.

Part Context

This part belongs to the WA04P series of chip attenuators from Walsin Technology Corporation. The series includes various attenuation values such as 4 dB and 12 dB models like the WA04P004XBTL and WA04P012XDTL. These components are designed for high-frequency applications requiring stable performance in small surface-mount packages.

Replacement Considerations

Direct substitutes include other 1 dB, 50 Ohm, 0404 package attenuators from different manufacturers. Check for equivalent electrical parameters including attenuation tolerance, VSWR, and power rating. Verify pinout and mechanical dimensions match the existing PCB layout before substitution.