18QHTF21-19.400-PD

Oscillators Overview

The 18QHTF21-19.400-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 19.4 MHz. It utilizes LVCMOS output logic and supports a supply voltage of 1.8V. The device features a standby or power-down mode for energy management. It is housed in a compact 4-SMD, no lead surface-mount package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output interface

Oscillators Applications

• General electronic circuits requiring precise timing
• Embedded systems utilizing LVCMOS interfaces
• Portable devices requiring low-power standby modes

Oscillators Procurement Notes

Verify the specific datasheet for the 18QHTF21-19.400-PD to confirm exact electrical parameters and mechanical tolerances before integration. Ensure compatibility with the target system's 1.8V supply and LVCMOS requirements. Confirm that the 4-SMD no-lead package fits the designated PCB footprint.

Oscillators Selection Notes

Select this component when a 19.4 MHz clock source is required with LVCMOS signaling. Consider the 1.8V supply constraint and the need for power-down capabilities. The small 2.0x1.6mm form factor makes it suitable for space-constrained designs.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. is a manufacturer of frequency control products with a history dating back to 1973. They are recognized as an early pioneer in quartz crystal manufacturing in Taiwan. This oscillator belongs to their series of surface-mount timing solutions.

Oscillators Replacement Considerations

Other variants within the 18QHTF21 series, such as the 18QHTF21-51.200-PD or 18QHTF21-68.665-PD, share similar packaging and electrical characteristics but operate at different frequencies. Substitution requires matching the specific frequency requirement.