18QHTF21-27.1631-OE

Oscillators Overview

The 18QHTF21-27.1631-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.1631 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features enable/disable control functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise clock signals within space-constrained electronic systems.

Oscillators Feature Summary

• Provides stable clock signal generation at 27.1631 MHz
• Supports low voltage operation at 1.8V
• Includes enable and disable control capability
• Utilizes surface-mount packaging for automated assembly

Oscillators Applications

• General purpose digital circuit clocking
• Embedded system timing references
• Consumer electronics internal synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable attachment during assembly processes.

Oscillators Selection Notes

Choose this oscillator when a fixed 27.1631 MHz frequency is required for synchronous digital operations. The LVCMOS output interface ensures compatibility with standard logic families operating at 1.8V. Consider the small 2.0x1.6mm form factor if board space is limited. The enable/disable feature allows for power management strategies where the clock can be deactivated during idle periods to reduce overall system consumption.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile surface-mount oscillators. The series typically offers various frequencies and supply voltages. Mercury Electronics is a established manufacturer of frequency control products, known for quartz crystal technologies. This specific model represents a standard XO variant optimized for modern portable and compact electronic devices requiring reliable timing sources.

Oscillators Replacement Considerations

Direct substitutes must match the 27.1631 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical. Cross-reference with other manufacturers offering similar small-footprint oscillators ensuring identical functional parameters.