18QHTF21-3.33333-PD

Oscillators Overview

The 18QHTF21-3.33333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 3.33333 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and an integrated standby or power-down mode to minimize energy consumption during idle periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

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

Oscillators Applications

• Low-power embedded systems requiring precise timing
• Consumer electronics with strict power constraints
• Industrial control units utilizing standard clock signals

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD no-lead footprint matches your PCB layout guidelines. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a stable 3.33333 MHz clock source is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage as a primary constraint; it is not suitable for 3.3V-only systems without level shifting. The standby feature makes it ideal for battery-operated devices where power efficiency is critical. Evaluate the physical dimensions of the 4-SMD package against available board space.

Oscillators Part Context

This part belongs to the QuikXO series from Mercury Electronics, which focuses on fast-delivery CMOS output clock oscillators. The series includes both standard and custom frequency options. The 'PD' suffix typically indicates a specific packaging or tape-and-reel configuration, though exact details should be confirmed via the manufacturer's documentation. This model represents a standard frequency variant within the lineup.

Oscillators Replacement Considerations

Direct substitutes must match the 3.33333 MHz frequency, LVCMOS output, and 1.8V supply voltage. Verify pinout compatibility for the 4-SMD no-lead package. Consult Mercury Electronics for authorized cross-reference parts if availability is an issue.