18QHTF21-78.752-PD

Overview

The 18QHTF21-78.752-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 78.752 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a Standby (Power Down) function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-power electronic systems.

Feature Summary

• Supports Standby mode for power reduction
• LVCMOS output interface compatibility
• Compact surface-mount package design

Applications

• Consumer electronics timing circuits
• Communication equipment clock generation
• Portable devices requiring low power consumption

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints to avoid assembly issues during manufacturing.

Selection Notes

Select this model when a 78.752 MHz clock signal is required with LVCMOS compatibility. Consider the 1.8V operating voltage and standby capability for power-sensitive designs. Evaluate the small 2.0x1.6mm package size against available board space. Compare performance needs with other frequencies in the 18QHTF21 series if alternative timing solutions are acceptable.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The 'PD' suffix indicates the inclusion of a power-down feature. These components are widely used in modern electronics where space and power efficiency are critical design factors.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies but identical packages and electrical characteristics, such as 18QHTF21-8.000-PD or 18QHTF21-51.200-PD, provided the frequency difference is acceptable for the application.