18QHTF21-13.512-PD

Overview

The 18QHTF21-13.512-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.512 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features a standby or power-down function to manage energy consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby or power-down functionality for energy management
• Designed for low-voltage operation at 1.8V

Applications

• Battery-powered portable devices
• Low-power embedded systems
• Digital signal processing circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational specifications. Confirm that the 4-SMD no-lead package footprint aligns with the PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Selection Notes

Select this component when a precise 13.512 MHz clock signal is required for low-power applications. The 1.8V operating voltage makes it suitable for modern battery-operated electronics where power efficiency is critical. The small 2.0x1.6 mm package allows for dense board layouts. Consider the LVCMOS output compatibility with the receiving digital logic family to ensure signal integrity without additional level shifting.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and timing components. The series offers various frequencies within a standardized small outline package. Mercury Electronics has been a pioneer in the Taiwan crystal industry since 1973, providing frequency control products including TCXOs and VCTCXOs alongside standard oscillators.

Replacement Considerations

Direct substitutes include other 13.512 MHz XO models from Mercury Electronics with identical 1.8V LVCMOS specifications and 4-SMD no-lead packaging. Verify pinout compatibility and electrical parameters such as current consumption and startup time before substitution.