18QHTF21-67.300-PD

Overview

The 18QHTF21-67.300-PD is a 67.3 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The component features a compact surface-mount package with dimensions of 2.0mm x 1.6mm. A key functional characteristic is the inclusion of a Standby (Power Down) control pin, allowing for power management during inactive periods. This specific model is part of the QHTF series designed for high-frequency applications requiring precise timing signals.

Feature Summary

• Generates a stable 67.3 MHz clock signal using standard XO technology
• Supports low-voltage operation at 1.8V with LVCMOS output compatibility
• Integrates a standby function to reduce power consumption when not in use
• Utilizes a miniature 2.0x1.6 mm surface-mount footprint for space-constrained designs

Applications

• High-speed digital data transmission systems
• Communication equipment requiring precise frequency references
• Embedded systems with strict power budget constraints
• Portable electronic devices utilizing small form-factor components

Procurement Notes

Verify the exact datasheet specifications directly from Mercury Electronics or authorized distributors before integration. Confirm that the 1.8V supply and LVCMOS interface align with your system design requirements. Ensure the 2.0x1.6 mm package dimensions fit within your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Selection Notes

Choose this component when a 67.3 MHz reference is required in a minimal footprint. The 1.8V operation makes it suitable for modern low-power digital circuits. The standby feature provides an advantage in battery-operated applications where power efficiency is critical. Compare against other Mercury QHTF models if different frequencies or voltage levels are needed.

Part Context

This oscillator belongs to the Mercury QHTF series, which focuses on providing reliable clock sources in ultra-small packages. Mercury Electronics has extensive experience in quartz crystal manufacturing, dating back to 1973. The QHTF line represents their advancement into surface-mount technology, expanding from traditional leaded types to meet modern SMD assembly standards.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Users should consult Mercury Electronics directly for cross-reference recommendations or equivalent alternatives that match the 67.3 MHz frequency, 1.8V supply, and 2.0x1.6 mm package size.