18QHTF21-27.190-PD

Oscillators Overview

The 18QHTF21-27.190-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.19 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption during inactive periods. The component is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm by 1.6mm. This surface-mount configuration facilitates automated assembly and integration into space-constrained electronic circuits requiring precise clock signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for efficient power management
• Includes standby and power-down functionality to reduce energy usage
• Utilizes LVCMOS output logic for standard digital interface compatibility
• Features a compact 4-SMD no-lead package for surface-mount applications

Oscillators Applications

• General-purpose clock signal generation in embedded systems
• Timing reference for microcontrollers and processors
• Synchronization in consumer electronics devices
• Clock source for communication interfaces requiring 27.19 MHz

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package dimensions to prevent soldering issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to maintain component integrity during assembly.

Oscillators Selection Notes

Select this component when a stable 27.19 MHz clock source is required with minimal power consumption. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the standby feature if power efficiency is critical for battery-operated or portable devices. The small form factor makes it suitable for dense PCB layouts where space is limited compared to larger through-hole or standard SMD packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series offers various frequencies while maintaining consistent electrical characteristics and package types. Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators, with a long history in the industry. The 18QHTF21 series is designed to provide reliable timing solutions for modern electronic applications requiring precision and compactness.

Oscillators Replacement Considerations

Direct replacements must match the 27.19 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers' equivalent parts ensuring identical electrical parameters and mechanical dimensions to ensure seamless integration without redesigning the PCB layout.