18QHTF21-10.762238-PD

Overview

The 18QHTF21-10.762238-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.762238 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features a compact 4-SMD, No Lead package configuration suitable for surface mount assembly. The component includes a standby or power-down function to manage energy consumption during inactive periods. It complies with RoHS standards and has an MSL rating of 1, indicating unlimited moisture sensitivity.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality for power management
• RoHS compliant construction for environmental safety

Applications

• General clock signal generation in electronic circuits
• Frequency reference sources for digital systems
• Embedded system timing applications

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package dimensions fit within your PCB layout constraints. Check for any specific handling instructions related to the RoHS compliance status during assembly processes.

Selection Notes

Select this component when a precise 10.762238 MHz reference is required for LVCMOS compatible logic families. Consider the 1.8V operating voltage as a primary constraint for power supply design. The integrated power-down feature makes it suitable for battery-operated devices requiring efficient standby modes. Evaluate the physical footprint of the 4-SMD package against available board space.

Part Context

This part belongs to the QHTF series of surface mount quartz oscillators from Mercury Electronics. The series typically offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of a power-down control pin. These oscillators are designed to replace discrete crystal and resonator combinations in modern compact electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Direct replacement requires matching the exact frequency, voltage, and package type. Consult manufacturer catalogs for alternative frequencies if the specific 10.762238 MHz value is unavailable.