18QHTF21-33.8688-PD

Oscillators Overview

The 18QHTF21-33.8688-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 33.8688 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down (standby) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output interface for digital compatibility
• Integrated power-down standby mode capability
• Compact surface-mount form factor

Oscillators Applications

• Digital clock signal generation
• Microprocessor timing references
• Communication system synchronization

Oscillators 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 no-lead package specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 33.8688 MHz reference is required for low-voltage digital circuits. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. The power-down feature supports battery-operated applications requiring extended standby life. Verify thermal performance within the specified operating temperature range for the intended environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies with consistent 2.0x1.6mm packaging. The 'PD' suffix indicates the inclusion of a power-down pin or control mechanism, distinguishing it from basic continuous-operation models within the same physical footprint family.

Oscillators Replacement Considerations

Direct substitutes must match the 33.8688 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility if replacing with different manufacturers. Check equivalent jitter and phase noise specifications to ensure signal integrity is maintained in the application.