18QHTF21-19.3547-PD

Oscillators Overview

The 18QHTF21-19.3547-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 19.3547 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and features a power-down standby mode for energy efficiency. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital circuit compatibility
• Integrated power-down standby functionality
• Compact 2.0x1.6 mm surface-mount package

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure correct output type and packaging configuration. Confirm that the 1.8V supply voltage aligns with target system requirements. Check datasheet specifications for load capacitance and stability parameters before integration. Ensure ESD protection measures are implemented during handling due to the small form factor.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific 19.3547 MHz frequency. The LVCMOS output is appropriate for standard digital logic families. Consider the 2.0x1.6 mm footprint for space-constrained PCB layouts. Evaluate power consumption needs given the available standby mode feature.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz frequency control products. The manufacturer has extensive experience in producing crystals and oscillators since 1973. This series typically offers standard performance characteristics for general-purpose timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 19.3547 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications against alternative manufacturers' data sheets before substitution.