18QHTF21-13.513-OE

Overview

The 18QHTF21-13.513-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.513 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, featuring a supply voltage of 1.8V. A key functional attribute is the inclusion of an Enable/Disable control pin, allowing for power management during inactive periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly processes.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable functionality for power control
• Compact 4-SMD no-lead surface mount package

Applications

• Timing and clock signal generation in electronic devices
• General purpose oscillator circuits requiring low voltage operation
• Embedded systems utilizing LVCMOS logic families

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm electrical characteristics and package type. Ensure that the selected variant matches the required supply voltage and output load specifications for the target application circuit. Cross-reference part numbers with official distributor catalogs to confirm availability and authenticity before purchase.

Selection Notes

Select this component when a precise 13.513 MHz timing reference is required within a low-profile surface-mount constraint. Consider the 1.8V supply requirement and LVCMOS output swing when interfacing with downstream logic gates. Evaluate the enable pin utility if system-level power conservation is a design priority compared to continuously running oscillators.

Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, which offers various hermetic ceramic leadless SMD packages. The series supports frequencies ranging from 1.0 MHz to 200 MHz across different supply voltages. Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in quartz crystals and timing components, established as a pioneer in the local industry.

Replacement Considerations

Direct substitutes include other 13.513 MHz LVCMOS oscillators in 4-SMD packages with compatible 1.8V operation. Verify pinout compatibility and enable pin functionality when replacing. Alternative models from the same manufacturer family may offer different frequency options but require verification of electrical parameters.