18QHTF21-70.313-PD

Overview

The 18QHTF21-70.313-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a nominal frequency of 70.313 MHz and utilizes LVCMOS output logic. The device supports a supply voltage range typically associated with its series, featuring a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package designed for surface-mount assembly. The component is engineered to meet specific timing requirements for digital circuits, ensuring stable clock signal generation within defined operating temperature ranges.

Feature Summary

• Integrates a power-down mode to reduce current consumption during idle states
• Provides stable LVCMOS clock signals for high-speed digital interfaces
• Utilizes a leadless surface-mount package for automated PCB assembly

Applications

• High-speed data communication equipment requiring precise clock synchronization
• Network infrastructure devices such as routers and switches
• Consumer electronics utilizing quartz-based timing control

Procurement Notes

Verify the exact supply voltage and operating temperature range against the official datasheet before integration. Confirm that the 4-SMD no-lead footprint matches the target PCB land pattern dimensions. Ensure compatibility with LVCMOS logic levels used in the destination circuit. Check for any specific reflow soldering profile recommendations provided by the manufacturer to prevent thermal damage during assembly processes.

Selection Notes

Select this component when a fixed frequency of 70.313 MHz is required with low power consumption capabilities. Consider the 4-SMD package size constraints and surface-mount manufacturing capabilities of the production line. Evaluate the need for a standby function to manage power budgets in battery-operated or energy-sensitive applications. Compare against other oscillators in the series for pinout and electrical parameter alignment.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic. The series is characterized by small form factors and integrated power management features. Mercury Electronic is a specialized supplier of frequency control products, including crystals and oscillators, with a long history in the industry. This specific model represents a standard output type within their portfolio of timing solutions.

Replacement Considerations

Consult the official Mercury Electronic datasheet for direct cross-reference part numbers. Verify that any substitute maintains the 70.313 MHz frequency, LVCMOS output, and 4-SMD package dimensions. Ensure equivalent electrical specifications regarding supply voltage and current consumption are met.