18QHTF21-27.52512-PD

Oscillators Overview

The 18QHTF21-27.52512-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.52512 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption during idle periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes. This specific part number indicates the precise frequency variant within the 18QHTF21 series.

Oscillators Feature Summary

• Supports low-voltage operation with integrated standby capability
• Provides stable clock signals via LVCMOS interface
• Utilizes leadless surface-mount packaging for automated assembly

Oscillators Applications

• General-purpose digital circuit timing references
• Embedded systems requiring low-power clock sources
• Consumer electronics utilizing surface-mount technology

Oscillators Procurement Notes

Verify the exact frequency suffix matches the system requirement of 27.52512 MHz. Confirm that the 1.8V supply voltage aligns with the target board design. Ensure the 4-SMD no-lead package footprint is compatible with the PCB layout. Check for any specific reflow soldering profile recommendations provided in the manufacturer datasheet to ensure joint integrity.

Oscillators Selection Notes

Select this component when a precise 27.52512 MHz clock signal is required for LVCMOS-compatible logic families. The choice is driven by the need for low operating voltage and the availability of a standby mode for power management. The surface-mount form factor makes it appropriate for high-density circuit boards where space constraints limit component placement options.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on quartz-based timing solutions. The manufacturer specializes in frequency control products including crystals and oscillators. The 'PD' suffix typically denotes the specific package type or pin configuration associated with the leadless SMD format used in this series.

Oscillators Replacement Considerations

Direct substitutes must match the 27.52512 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify electrical parameters such as load capacitance and drive level compatibility before swapping manufacturers.