18QHTF21-19.0625-OE

Oscillators Overview

The 18QHTF21-19.0625-OE is a hermetic ceramic leadless surface-mount crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 19.0625 MHz and supports a supply voltage of 2.5V. The device utilizes an OE (Output Enable) control interface for power management. It is housed in a compact 7.0 x 5.0 mm package, designed for high-reliability applications requiring stable frequency generation within the broader QHTF series range of 1.0 MHz to 200 MHz.

Oscillators Feature Summary

• Hermetic ceramic leadless construction for enhanced environmental stability
• Surface-mount design with Output Enable functionality
• Compact footprint suitable for space-constrained electronic assemblies

Oscillators Applications

• Telecommunications equipment requiring precise clock signals
• Data communication systems utilizing serial interfaces
• Industrial control units needing reliable timing references

Oscillators Procurement Notes

Verify the specific suffix 'OE' confirms the presence of the output enable pin configuration as documented in the manufacturer's datasheet. Ensure the package dimensions match the 7.0 x 5.0 mm specification required for the target PCB layout. Confirm that the 2.5V supply voltage aligns with the system power rails before integration.

Oscillators Selection Notes

Select this component when a hermetically sealed oscillator is required for harsh environments or high reliability standards. The choice depends on the need for a 19.0625 MHz frequency with active low-power control via the OE pin. Consider the 7.0 x 5.0 mm package size against available board space constraints compared to smaller non-hermetic alternatives.

Oscillators Part Context

This part belongs to the QHTF series from Mercury Electronic Ind. Co., Ltd., a pioneer in Taiwan's quartz crystal industry since 1973. The series offers five hermetic ceramic leadless SMD packages and multiple supply voltages. This specific model represents a standard XO variant within their frequency control product line, emphasizing durability and precision.

Oscillators Replacement Considerations

Direct substitutes must match the 19.0625 MHz frequency, 2.5V supply, and 7.0 x 5.0 mm hermetic package. Verify pinout compatibility, specifically the OE function placement. Cross-reference with other Mercury QHTF variants only if electrical parameters and mechanical dimensions are identical.