18QHTF21-13.020-PD

Overview

The 18QHTF21-13.020-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 13.02 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead surface-mount package, suitable for space-constrained designs. The component supports operation within a temperature range of -40°C to 85°C, ensuring reliability in various industrial environments.

Feature Summary

• Supports standby mode via power-down control signal
• LVCMOS output interface compatible with standard digital logic
• Surface-mount design with no-lead solder termination

Applications

• General-purpose clock generation for embedded systems
• Timing reference for microcontrollers and processors
• Data communication interfaces requiring stable clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet. Check for any specific reflow soldering profile recommendations to maintain component integrity during assembly.

Selection Notes

Select this oscillator when a low-voltage 1.8V supply is available and LVCMOS outputs are required. Consider the operating temperature range of -40°C to 85°C for environmental suitability. Evaluate the need for a power-down feature if power efficiency is critical. Compare size constraints against other SMD packages to ensure the 4-SMD form factor fits the layout.

Part Context

This part belongs to Mercury Electronics' series of surface-mount crystal oscillators. The '18QHTF21' prefix typically denotes the series characteristics, including voltage and package type. The suffix '-PD' indicates the inclusion of a power-down or standby control pin. Mercury Electronics specializes in quartz-based timing components, offering various frequencies and stability grades within this product family.

Replacement Considerations

Direct replacements must match the 13.02 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify equivalent electrical parameters such as current consumption and phase noise if specified in the original design. Cross-reference with other manufacturers' offerings in the same package style to ensure pinout compatibility.

FAQ

Does the 18QHTF21-13.020-PD support active high or active low power-down?

The datasheet specifies a standby/power-down function but does not explicitly define the logic level (active high/low) for the control pin in the provided summary data. Consult the full manufacturer datasheet for precise control signal polarity.

What is the maximum supply current for this oscillator?

Specific maximum supply current values are not provided in the available component summary. Refer to the official Mercury Electronics datasheet for detailed electrical characteristics under operating conditions.