18QHTF21-33.784-PD

Oscillators Overview

The 18QHTF21-33.784-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 33.784 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption efficiently. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount applications.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

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 footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations required by your application environment.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 33.784 MHz reference. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small 2.0x1.6mm package size if board real estate is limited. The power-down feature is advantageous for battery-operated devices requiring extended standby times.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in crystal manufacturing. This specific model represents a standard XO variant within their portfolio, offering a balance of performance and physical size for modern electronic designs.

Oscillators Replacement Considerations

Direct substitutes may include other 33.784 MHz LVCMOS oscillators in a 4-SMD no-lead package with 1.8V operation. Verify pinout compatibility and electrical parameters such as phase noise and jitter before substitution. Alternative parts must support the same standby functionality and operate within the required temperature range.