18QHTF21-13.680-OE

Overview

The 18QHTF21-13.680-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 13.680 MHz and utilizes an LVCMOS output interface. The device is designed for low-voltage applications, specifically supporting a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

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

Applications

• Embedded systems requiring precise clock timing
• Consumer electronics with low-power constraints
• Industrial control modules

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply voltage aligns with the target system design. Confirm that the 4-SMD package dimensions fit the designated PCB footprint. Cross-reference the part number suffix with manufacturer documentation to confirm availability and exact specifications.

Selection Notes

Select this component when a low-profile, low-voltage oscillator is required for space-constrained designs. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. Consider the enable pin feature if power management during idle states is a critical design requirement for the application.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which focuses on small-form-factor timing solutions. The series typically offers various frequencies within a standardized 4-SMD package. Mercury Electronic is a recognized supplier of quartz crystals and oscillators, providing components for global electronics manufacturing.

Replacement Considerations

Direct substitutes must match the 13.680 MHz frequency, 1.8V LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics with alternative manufacturers such as Epson or SiTime before substitution.