18QHTF21-27.0736-PD

Oscillators Overview

The 18QHTF21-27.0736-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.0736 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby power-down mode to reduce consumption during inactive periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports low-voltage operation with integrated standby functionality
• Provides stable clock signals via LVCMOS interface
• Utilizes leadless surface-mount packaging for space-constrained designs

Oscillators Applications

• Digital signal processing systems requiring precise timing
• Communication equipment utilizing standard clock frequencies
• Embedded control units needing low-power oscillators

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a fixed 27.0736 MHz clock source is required with minimal power consumption. The LVCMOS output is compatible with standard digital logic families operating at 1.8V. Consider the standby feature if power management is critical. The small form factor makes it appropriate for dense board layouts where larger packages are unsuitable.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount oscillators. The series offers various frequency options while maintaining consistent electrical characteristics and package dimensions. The 'PD' suffix indicates the inclusion of a power-down control function, distinguishing it from continuous-operation variants within the same product line.

Oscillators Replacement Considerations

Direct replacements must match the 27.0736 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and thermal performance. Cross-reference with other manufacturers offering identical specifications to ensure functional equivalence without redesigning the host circuit.