18QHTF21-50.2133-PD

Overview

The 18QHTF21-50.2133-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 50.2133 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down standby function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm. This component is designed for standard clock signal generation in electronic circuits requiring precise timing.

Feature Summary

• LVCMOS output compatibility for digital interface integration
• Integrated power-down mode for standby operation
• Compact surface-mount design suitable for space-constrained layouts

Applications

• High-performance digital system clocking
• Communication equipment timing references
• Embedded processor clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to guarantee proper solder joint formation and mechanical stability during assembly processes.

Selection Notes

Select this oscillator when a precise 50.2133 MHz frequency is required with low voltage operation. Consider the LVCMOS output swing for direct interfacing with compatible logic families. Evaluate the thermal performance within the specified operating temperature range to ensure long-term frequency stability under varying environmental conditions.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies optimized for standard digital applications. The 'PD' suffix indicates the inclusion of a power-down control feature, allowing for active and inactive states to manage power consumption effectively in portable or battery-operated devices.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with identical pinout and electrical characteristics but different frequencies, such as 18QHTF21-50.000-PD or 18QHTF21-51.200-PD, provided the frequency difference is acceptable for the application.