18QHTF21-19.810-OE

Oscillators Overview

The 18QHTF21-19.810-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 19.81 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. The component is designed for surface mount technology applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital circuit compatibility
• Integrated enable/disable pin for power control
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD package footprint matches the PCB layout requirements. Check for any specific ordering suffixes that may indicate different packaging or testing standards.

Oscillators Selection Notes

Select this component when a low-profile surface mount oscillator is required for 1.8V logic systems. Consider the enable/disable feature if power efficiency is critical. Verify that the 19.81 MHz frequency meets the system clock requirements. Ensure the operating temperature range covers the intended application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The -OE suffix likely denotes a specific output enable configuration or packaging variant within the product line. These components are designed for high-reliability timing applications in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 19.81 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify electrical parameters such as phase noise and jitter against the original specification. Ensure the replacement part supports the enable/disable functionality if required by the design.