18QHTF21-75.9505-PD

Overview

The 18QHTF21-75.9505-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 75.9505 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals within space-constrained electronic systems.

Feature Summary

• Supports low-voltage operation at 1.8V with integrated standby capability
• Delivers stable LVCMOS output signals for digital circuit interfacing
• Utilizes a compact surface-mount package suitable for high-density PCB layouts

Applications

• General-purpose clock generation for embedded systems
• Timing reference for communication interfaces
• Power-sensitive portable electronic devices

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD package dimensions align with the target footprint design. Check manufacturer documentation for any updates regarding RoHS compliance or material declarations before finalizing procurement orders.

Selection Notes

Select this component when a 75.9505 MHz frequency is strictly required alongside LVCMOS logic compatibility. Consider the 1.8V supply constraint and the availability of a power-down feature for battery-operated designs. Ensure the 2.0x1.6mm form factor fits within the mechanical constraints of the assembly.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package. The 'PD' suffix likely indicates specific packaging or handling characteristics defined by the manufacturer's internal coding system.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants such as 18QHTF21-75.750-PD or 18QHTF21-51.200-PD if frequency adjustments are permissible. Cross-brand replacements require matching LVCMOS output, 1.8V supply, and identical 4-SMD package dimensions.