18QHTF21-13.516-PD

Overview

The 18QHTF21-13.516-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.516 MHz and utilizes LVCMOS output logic levels. The device is designed for surface mount assembly in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. It functions with a supply voltage of 1.8V and includes a standby or power-down feature to reduce consumption. The unit supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Integrates LVCMOS output interface for digital signal compatibility
• Supports active low standby mode for power management
• Utilizes leadless surface mount packaging for space efficiency

Applications

• Portable electronic devices requiring low power consumption
• Battery-powered systems needing efficient clock sources
• Embedded circuits utilizing LVCMOS logic families

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator specifications. Ensure the PCB footprint matches the 4-SMD no lead package dimensions precisely to avoid mounting issues during assembly.

Selection Notes

Select this component when a precise 13.516 MHz clock signal is required for LVCMOS compatible logic. Consider the 1.8V operating voltage constraint and the need for a standby function. Evaluate the thermal performance within the -40°C to 85°C range to ensure reliability under expected environmental conditions.

Part Context

This model belongs to the Mercury Electronics XO series, focusing on surface mount timing solutions. The product line emphasizes compact form factors and low voltage operation suitable for modern portable electronics. Mercury Electronics specializes in quartz-based frequency control components including crystals and oscillators.

Replacement Considerations

Direct substitutes include other 13.516 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as current consumption and output swing before substitution.