18QHTF21-11.666667-PD

Overview

The 18QHTF21-11.666667-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 11.666667 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V with a maximum supply current of 22mA. It features a standby mode for power-down functionality to reduce energy consumption during idle periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode capability for power management
• Operates on a 1.8V supply voltage rail
• Utilizes a leadless SMD package for space-constrained designs

Applications

• Low-power portable electronic devices
• Digital signal processing clock sources
• Communication equipment timing references
• Embedded system microcontroller clocks

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout guidelines. Check for any specific operating temperature range limitations if the application involves extreme environmental conditions.

Selection Notes

Select this component when a precise 11.666667 MHz reference is required for LVCMOS-compatible digital circuits. Consider the 1.8V supply constraint and 22mA current draw to ensure adequate power budget allocation. The small 2.0x1.6mm form factor makes it suitable for high-density board layouts where space is limited compared to larger oscillator packages.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies and voltage options within a standardized small outline package. Mercury Electronics is a specialized manufacturer of frequency control products, leveraging decades of experience in quartz crystal technology to provide stable timing solutions for modern electronics.

Replacement Considerations

Direct substitutes must match the 11.666667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify equivalent electrical characteristics such as phase noise and stability before swapping manufacturers.