18QHTF21-15.875-PD

Oscillators Overview

The 18QHTF21-15.875-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 15.875 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a standby or power-down control function to manage power consumption. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Provides stable clock signals via LVCMOS output interface
• Includes standby mode capability for power management
• Designed for low-voltage 1.8V operation

Oscillators Applications

• General-purpose digital circuit timing
• Communication equipment clock sources
• Embedded system synchronization

Oscillators Procurement Notes

Verify the specific suffix 'PD' indicates the power-down feature against official datasheets. Confirm the 1.8V supply requirement matches target design constraints. Ensure the 4-SMD no-lead package footprint aligns with PCB layout specifications before ordering.

Oscillators Selection Notes

Select this component when a 15.875 MHz reference is required with low-power standby capabilities. Consider the 1.8V operating voltage and LVCMOS compatibility with downstream logic. Evaluate the small form factor suitability for dense board layouts compared to larger packages.

Oscillators Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and control options. The 'PD' suffix typically denotes power-down functionality, distinguishing it from enable/disable variants within the same family.

Oscillators Replacement Considerations

Check for direct substitutes with identical 15.875 MHz frequency, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and LVCMOS output characteristics. Ensure any replacement supports the standby power-down control function.