18QHTF21-61.380-PD

Overview

The 18QHTF21-61.380-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 61.38 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and supports a standby or power-down mode for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications.

Feature Summary

• Supports low-voltage operation with 1.8V supply
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic interface
• Designed in a small form factor SMD package

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational needs. Confirm that the PCB footprint matches the 4-SMD No Lead package dimensions provided in the official datasheet to ensure proper assembly and reliability.

Selection Notes

Select this component when a 61.38 MHz clock source is required with low voltage compatibility. Consider the LVCMOS output level compatibility with downstream logic families. Evaluate the need for power-down features for battery-operated designs. Compare package size constraints against alternative frequencies within the same series if space is limited.

Part Context

This part belongs to the QHTF21 series of quartz oscillators from Mercury Electronics. The series offers various frequencies with standardized packaging. The '18' prefix indicates the 1.8V operating voltage variant. This model provides a fixed frequency solution compared to programmable alternatives, ensuring stable timing without external configuration.

Replacement Considerations

Direct substitutes include other 61.38 MHz oscillators with LVCMOS outputs and 1.8V supply requirements. Verify pinout compatibility and package dimensions for drop-in replacement. Check if adjacent models like 18QHTF21-61.380 (without PD suffix) offer identical electrical characteristics if the power-down feature is not critical.