18QHTF21-31.680-OE

Oscillators Overview

The 18QHTF21-31.680-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 31.68 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable function for power management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. The unit supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50ppm.

Oscillators Feature Summary

• Integrates enable/disable functionality for efficient power control
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed in a small form factor surface-mount package

Oscillators Applications

• Embedded systems requiring precise clock timing
• Consumer electronics with low power constraints
• Industrial control modules operating in varied temperatures

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability during assembly processes.

Oscillators Selection Notes

Select this component when a 31.68 MHz clock signal is required with low voltage operation. Consider the ±50ppm stability sufficient for standard digital interfaces. Evaluate the enable pin utility if power saving modes are necessary. Compare against other Mercury models like the 18QHTF21 series for alternative frequencies or voltages if specifications do not match exactly.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series typically includes various XO types with different frequencies and supply voltages. Mercury Electronic Ind. Co., Ltd. has been manufacturing these components since 1973, focusing on crystals, oscillators, and filters for global markets.

Oscillators Replacement Considerations

Direct substitutes within the same series include the 18QHTF21-8.480-OE and 18QHTF21-96.768-OE, which share similar packaging and logic but differ in frequency. Verify that the replacement part meets the exact frequency requirement of 31.68 MHz. Other variants in the 18QHTF21 family may offer different supply voltages or stability ratings.