18QHTF21-19.430842-PD

Oscillators Overview

The 18QHTF21-19.430842-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 19.430842 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and incorporates a standby or power-down feature for energy management. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications.

Oscillators Feature Summary

• LVCMOS output interface
• Integrated standby capability
• Compact surface-mount form factor

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage and load conditions. Confirm that the 4-SMD no lead package matches the target PCB footprint. Check datasheet specifications for operating temperature range and frequency stability requirements before integration into final designs.

Oscillators Selection Notes

Select this component when a precise 19.430842 MHz reference is required for low-voltage digital systems. Ensure the design supports 1.8V operation and accommodates the small SMD footprint. Consider thermal performance and board layout constraints associated with surface-mount oscillators during the selection process.

Oscillators Part Context

Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators. This model belongs to their XO series, designed for reliable timing in consumer and industrial electronics. The manufacturer has established expertise in Taiwan's quartz industry, providing stable components for global supply chains.

Oscillators Replacement Considerations

Cross-reference with other Mercury 18QHTF21 series variants for different frequencies. Verify pinout and electrical parameters against competitors offering similar LVCMOS oscillators in 4-SMD packages. Ensure substitute parts meet identical frequency and voltage specifications.