18QHTF21-27.13593-PD

Oscillators Overview

The 18QHTF21-27.13593-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 27.13593 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Oscillators 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 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific RoHS compliance documentation if required by project regulations.

Oscillators Selection Notes

Select this component when a precise 27.13593 MHz clock source is required for digital systems operating at 1.8V. The choice is driven by the need for a small form factor and integrated power-down capability. Consider the LVCMOS output compatibility with downstream logic families. Evaluate thermal performance within the 2.0x1.6mm package limits for the intended environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard oscillators with various frequencies and voltage levels, catering to consumer and industrial electronics markets requiring reliable timing solutions.

Oscillators Replacement Considerations

Direct substitutes include other 27.13593 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications such as phase noise and jitter. Alternative models from different manufacturers may require schematic adjustments due to differing pin configurations or drive strengths.