18QHTF21-20.35625-PD

Oscillators Overview

The 18QHTF21-20.35625-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 20.35625 MHz with an LVCMOS output signal type. The device supports a supply voltage of 1.8V and features a standby (power down) mode for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode for power reduction
• Utilizes LVCMOS output interface

Oscillators Applications

• General-purpose digital circuit timing
• Embedded systems clock generation
• Consumer electronics control units

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for thermal and electrical limits to ensure reliable operation under all intended environmental conditions.

Oscillators Selection Notes

Select this component when a stable 20.35625 MHz reference is required for low-power applications. The LVCMOS output ensures compatibility with standard logic families operating at 1.8V. Consider the standby feature if power efficiency is critical. Verify that the package size fits within the available board space compared to larger through-hole or leaded alternatives.

Oscillators Part Context

This part belongs to the QHTF series from Mercury Electronics, which specializes in quartz crystal oscillators. The company has decades of experience in Taiwan's crystal industry. This specific model represents a standard XO variant designed for cost-effective integration into modern electronic devices requiring precise frequency control without complex external components.

Oscillators Replacement Considerations

Direct substitutes must match the 20.35625 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check equivalent models from other manufacturers ensuring identical pinout and electrical characteristics. Verify that any alternative part meets the same temperature stability and aging specifications to maintain system performance.