18QHTF21-19.400-OE

Oscillators Overview

The 18QHTF21-19.400-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a standard frequency of 19.4 MHz. It utilizes an LVCMOS output interface and functions with a supply voltage of 1.8V. The component features an enable/disable control function and is housed in a compact 4-SMD, no lead package. Designed for reliability, it supports an operating temperature range from -40°C to 85°C.

Oscillators Feature Summary

• Provides stable clock signals via LVCMOS output interface
• Includes hardware enable and disable functionality for power management
• Compact surface-mount design suitable for space-constrained applications

Oscillators Applications

• Consumer electronics timing circuits
• Industrial control systems requiring precise clocking
• Embedded systems utilizing low-voltage logic interfaces

Oscillators Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm exact electrical characteristics and pinout configuration. Ensure compatibility with target system voltage levels and thermal requirements before integration. Cross-reference part numbers carefully as minor variations may exist between manufacturing batches or regional specifications.

Oscillators Selection Notes

Select this component when a 19.4 MHz clock source is required with low voltage operation. Consider the LVCMOS output compatibility with downstream digital logic. Evaluate the enable/disable feature necessity for power-sensitive designs. Confirm package dimensions fit within the available PCB real estate constraints.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series, which offers various frequency options within a standardized small outline package. The series targets applications needing reliable timing solutions in portable and industrial devices. Similar models in the lineup differ primarily in frequency settings while maintaining consistent form factors and electrical profiles.

Oscillators Replacement Considerations

Direct substitutes include other 19.4 MHz XO components with matching 1.8V LVCMOS outputs and identical 4-SMD packages. Verify pin-to-pin compatibility and thermal ratings before substitution. Consult official replacement lists for guaranteed interoperability.