18QHTF21-11.851776-PD

Overview

The 18QHTF21-11.851776-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.851776 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby power-down feature for energy management. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount assembly.

Feature Summary

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

Applications

• General timing circuits requiring precise frequency control
• Embedded systems utilizing LVCMOS interfaces
• Portable electronics benefiting from low-power standby modes

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm the exact frequency tolerance and operating temperature range. Ensure that the 1.8V supply voltage aligns with your system design requirements before procurement. Cross-reference the 4-SMD no-lead package dimensions with your PCB footprint specifications to guarantee mechanical compatibility.

Selection Notes

Select this component when a stable 11.851776 MHz reference is required for LVCMOS-based digital logic. Consider the 1.8V operating voltage constraint during power budget analysis. The integrated standby feature makes it suitable for applications prioritizing power efficiency. Confirm that the small form factor fits within the available board space constraints.

Part Context

This model belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized 4-SMD package. These components are designed for general-purpose timing applications where size and power consumption are critical factors in the overall system architecture.

Replacement Considerations

Direct substitutes must match the 11.851776 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify electrical parameters such as load capacitance and drive level compatibility. Consult official cross-reference lists for confirmed equivalent parts from other manufacturers.