18QHTF21-19.000-PD

Oscillators Overview

The 18QHTF21-19.000-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.000 MHz with LVCMOS output levels. The device supports a supply voltage of 1.8V and includes a standby (power down) function. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power management
• Compact surface-mount package design

Oscillators Applications

• Low voltage digital circuit clocking
• Portable electronic devices requiring power efficiency
• Embedded systems needing stable timing signals

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to prevent assembly issues.

Oscillators Selection Notes

Select this component when a precise 19 MHz clock signal is required in space-constrained designs. The 1.8V operation makes it suitable for modern low-power applications. Consider the standby feature if power conservation during idle periods is a critical design requirement for the end product.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal oscillators. The manufacturer has decades of experience in frequency control products. This series typically offers standard performance levels suitable for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Check for direct substitutes within the same series offering different frequencies or voltages. Verify pinout compatibility if considering alternative manufacturers. Ensure electrical characteristics such as phase noise and stability meet the original design specifications.