18QHTF21-4.636-PD

Oscillators Overview

The 18QHTF21-4.636-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.636 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Oscillators Feature Summary

• Supports low voltage operation with 1.8V supply requirement
• Includes standby function for power management
• Utilizes LVCMOS output logic interface

Oscillators Applications

• Battery-powered portable devices
• General purpose timing circuits
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator specifications. Confirm that the 4-SMD no-lead package dimensions align with your PCB footprint to avoid assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a low-voltage, surface-mount oscillator is required for timing applications. Consider the 1.8V operating voltage and LVCMOS compatibility with your digital logic levels. Evaluate the need for standby functionality to manage power consumption in portable designs compared to continuous operation alternatives.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, which offers various frequencies within the same package form factor. The manufacturer specializes in quartz crystals and oscillators, providing timing solutions for consumer electronics and industrial applications. This series emphasizes compact size and low power consumption.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and electrical characteristics but different frequencies, such as 18QHTF21-4.068-PD or 18QHTF21-51.200-PD, provided the frequency difference is acceptable for the application.