18QHTF21-10.3861-PD

Overview

The 18QHTF21-10.3861-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10.3861 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Provides LVCMOS output signal compatibility

Applications

• Digital system timing
• Embedded clock generation
• Low-power electronic devices

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Ensure the 4-SMD no-lead package dimensions match the target PCB footprint. Confirm that the LVCMOS output voltage levels are compatible with the receiving circuitry to prevent signal integrity issues.

Selection Notes

Select this component when a precise 10.3861 MHz reference is required in space-constrained designs. The 1.8V supply requirement makes it suitable for modern low-power digital systems. Consider the standby feature if power efficiency during idle states is a critical design parameter.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm SMD package. The series is designed for general-purpose timing applications where size and power consumption are primary constraints compared to larger through-hole or standard surface-mount oscillators.

Replacement Considerations

Direct substitutes must match the 10.3861 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics when replacing with components from other manufacturers.