18QHTF21-67.7376-PD

Overview

The 18QHTF21-67.7376-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 67.7376 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy 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 logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing systems
• Communication equipment clocking
• Microcontroller timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead footprint matches your PCB layout guidelines to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a stable 67.7376 MHz reference is required with low power consumption capabilities. The LVCMOS output is compatible with standard digital logic families. Consider the operating temperature range and phase noise specifications if high-frequency precision is critical for your application environment.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based timing solutions. The manufacturer has decades of experience in producing crystals and oscillators. This specific model represents a standard XO variant designed for general-purpose timing needs in consumer and industrial electronics.

Replacement Considerations

Direct substitutes must match the 67.7376 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pin compatibility and electrical characteristics before swapping manufacturers.