18QHTF21-4.910-OE

Oscillators Overview

The 18QHTF21-4.910-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 4.91 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports LVCMOS output signal compatibility
• Includes enable/disable functionality for power control
• Operates at 1.8V supply voltage

Oscillators Applications

• General-purpose digital timing circuits
• Embedded systems requiring low-voltage clock sources
• Portable electronic devices with space constraints

Oscillators Procurement Notes

Verify the specific frequency tolerance and stability requirements against your system design before procurement. Ensure that the 1.8V supply voltage aligns with your target platform's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout specifications to avoid soldering issues during assembly.

Oscillators Selection Notes

Select this component when a precise 4.91 MHz clock signal is required within a low-power environment. The LVCMOS interface ensures compatibility with standard logic families operating at 1.8V. Consider the small form factor if board real estate is limited. Verify that the enable pin can be effectively utilized to manage power consumption during idle states in your application.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan producing crystals and oscillators. This series typically offers standard performance characteristics suitable for general consumer and industrial electronics where reliable timing is essential.

Oscillators Replacement Considerations

Direct substitutes must match the 4.91 MHz frequency, 1.8V operation, LVCMOS output, and 4-SMD no-lead package. Check datasheets for equivalent parts from other manufacturers ensuring identical pinout and electrical parameters to guarantee functional interchangeability without redesign.