18QHTF21-75.340-PD

Overview

The 18QHTF21-75.340-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 75.34 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption efficiently. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V with integrated standby capability
• Delivers stable LVCMOS output signals for digital circuit synchronization
• Utilizes a miniature 4-SMD no-lead package for space-constrained designs

Applications

• Digital signal processing systems requiring precise clock references
• Communication equipment utilizing LVCMOS interface standards
• Portable electronic devices necessitating low-power consumption modes

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to guarantee proper assembly and electrical connectivity during manufacturing.

Selection Notes

Select this component when a 75.34 MHz reference is required alongside strict size limitations. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power management is critical. Validate that the operating temperature range meets environmental conditions. Compare against other Mercury oscillators only if different frequencies or packages are needed.

Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard XO configurations with various frequency options, catering to diverse electronic timing needs across consumer and industrial sectors.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts but different frequencies, such as 18QHTF21-6.000-PD or 18QHTF21-51.200-PD. Cross-brand replacements require matching LVCMOS logic, 1.8V supply, and 4-SMD no-lead packaging. Verify electrical parameters carefully before substitution.