18QHTF21-57.383667-PD

Overview

The 18QHTF21-57.383667-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.383667 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output interface
• Standby (Power Down) capability
• Compact 4-SMD No Lead package

Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded system clock sources

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD No Lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS compatibility. The integrated standby feature supports power-sensitive designs needing active control over oscillator states. The small form factor makes it appropriate for space-constrained boards where traditional through-hole or larger SMD oscillators cannot fit.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan producing crystals and oscillators. This series typically offers standard performance levels suitable for general-purpose digital timing applications across various consumer and industrial electronics sectors.

Replacement Considerations

Direct substitutes must match the 57.383667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical. Cross-reference with other manufacturers offering similar surface-mount XO components with identical form factors and voltage levels.