18QHTF21-74.1582-OE

Overview

The 18QHTF21-74.1582-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 74.1582 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features an enable/disable control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount assembly. The component supports active operation with the ability to enter a low-power state when disabled, making it appropriate for portable electronics requiring precise timing signals.

Feature Summary

• Supports enable/disable control for power management
• Utilizes LVCMOS output logic interface
• Operates on a 1.8V supply voltage

Applications

• Portable electronic devices requiring low power consumption
• Communication equipment needing precise clock signals
• Embedded systems utilizing LVCMOS interfaces

Procurement Notes

Verify the specific suffix 'OE' corresponds to the Enable/Disable functionality as documented in official Mercury Electronics specifications. Confirm that the 1.8V supply requirement aligns with the target circuit design. Ensure the 4-SMD No Lead package dimensions match the PCB footprint constraints. Cross-reference the frequency tolerance and stability requirements against system timing budgets before finalizing procurement decisions.

Selection Notes

Select this component when a 1.8V supply and LVCMOS output are required alongside power-down capabilities. Compare against similar models like the -PD variant which offers standby functions instead of enable/disable controls. Evaluate thermal performance and size constraints relative to the 4-SMD No Lead package. Ensure compatibility with the target application's voltage levels and control signal logic families.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, a supplier specializing in quartz crystals and oscillators. The series includes various frequencies and package types. The -OE suffix typically denotes Enable/Disable functionality, distinguishing it from other variants like -PD (Standby). Mercury Electronics has a long history in Taiwan's frequency control industry, providing components for diverse timing applications.

Replacement Considerations

Direct substitutes within the same series include 18QHTF21-74.1582-PD if standby functionality is acceptable instead of enable/disable. Other frequencies in the 18QHTF21 series may be considered if timing requirements differ. Verify pinout and electrical characteristics match before substitution.