18QHTF21-91.700-PD

Overview

The 18QHTF21-91.700-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 91.7 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a power-down feature for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for surface-mount assembly in timing applications requiring precise clock signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated power-down functionality for energy management
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded electronics circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Selection Notes

Select this model when a 91.7 MHz LVCMOS clock source is required in a minimal footprint. Consider the 1.8V operating voltage and power-down capability for low-power designs. Evaluate the 2.0x1.6mm package size against available board space. Compare performance metrics such as jitter and stability if available in the manufacturer documentation to ensure suitability for high-speed digital interfaces.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard crystal oscillators for various timing needs. The '18' prefix typically indicates the 1.8V supply voltage variant within their product line. These components are widely used in consumer electronics and industrial equipment where reliable clock sources are essential for synchronous data transfer and processing operations.

Replacement Considerations

Direct substitutes must match the 91.7 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as current consumption and drive strength. Cross-reference with other manufacturers offering similar surface-mount oscillators to ensure functional equivalence without redesigning the host circuit.