18QHTF21-13.528-PD

Overview

The 18QHTF21-13.528-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.528 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 for digital interface compatibility
• Integrated standby mode for power reduction
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions specified in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The choice is appropriate for designs prioritizing power efficiency through the available standby feature. Consider the physical size constraints of the 4-SMD package relative to the board layout. Verify that the 13.528 MHz frequency meets the exact timing needs of the connected digital components without requiring external dividers.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz crystals and oscillators. The series typically offers various frequencies within a standardized small outline package format. Mercury Electronics has a long history in the frequency control industry, providing timing solutions for consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other 13.528 MHz XO devices with identical 1.8V LVCMOS outputs and 4-SMD no-lead footprints. Cross-reference pinouts and electrical characteristics carefully. Alternative models from different manufacturers must match the operating temperature range and load capacitance specifications to ensure functional equivalence.