18QHTF21-3.1815-PD

Oscillators Overview

The 18QHTF21-3.1815-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a nominal frequency of 3.1815 MHz with an LVCMOS output signal format. The device functions at a supply voltage of 1.8V and includes a standby or power-down control feature for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, designed for surface-mount assembly.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power reduction
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose timing circuits
• Digital signal processing systems
• Communication equipment clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to prevent assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 3.1815 MHz reference frequency. The choice is driven by the need for a small form factor suitable for dense layouts. Consider the LVCMOS output swing levels to ensure compatibility with downstream logic inputs without additional buffering.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal oscillators. The series offers various frequencies and packages, catering to diverse timing needs in consumer electronics and industrial applications. Mercury Electronics is a recognized supplier of frequency control products based in Taiwan.

Oscillators FAQ

What is the output waveform type?

The output waveform is LVCMOS (Low Voltage Complementary Metal-Oxide Semiconductor).

Does the device support power saving modes?

Yes, it features a Standby (Power Down) function to reduce current consumption when not in use.