18QHTF21-3.276-PD

Oscillators Overview

The 18QHTF21-3.276-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 3.276 MHz and utilizes an LVCMOS output interface. The device supports a supply voltage of 1.8V and features a standby or power-down mode for energy management. It is housed in a compact 4-SMD, no lead package suitable for surface mount applications.

Oscillators Feature Summary

• Supports low voltage operation with 1.8V supply requirement
• Includes standby functionality to reduce power consumption
• Provides LVCMOS digital output signal
• Utilizes a small form factor SMD package

Oscillators Applications

• Battery-powered portable electronic devices
• Low-power consumer electronics
• Digital clock circuits
• Microcontroller system clocks

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail is stable within the specified operating range. Confirm that the PCB footprint matches the 4-SMD no lead package dimensions provided in the official datasheet to avoid assembly issues.

Oscillators Selection Notes

Select this component when a precise 3.276 MHz reference is required for low-voltage logic interfaces. Consider the standby feature if power efficiency is critical for battery-operated systems. Compare alternative frequencies from the same series if different timing references are needed while maintaining identical package and electrical characteristics.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequency options with consistent 1.8V operation and LVCMOS outputs. The manufacturer specializes in quartz crystal products with decades of industry experience in Taiwan.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with compatible pinouts and voltages, such as 18QHTF21-8.0004-PD or 18QHTF21-18.1059-PD, provided the frequency difference is acceptable for the application.