18QHTF21-117.7352-PD

Overview

The 18QHTF21-117.7352-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 117.7352 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby and power-down control capabilities
• Delivers LVCMOS signal output compatibility

Applications

• High-speed digital data transmission systems
• Communication equipment requiring precise clocking
• Embedded systems utilizing LVCMOS interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Selection Notes

Select this component when a stable 117.7352 MHz reference is required for LVCMOS-compatible logic circuits. The choice is driven by the need for low-power operation via the standby feature and the space-saving benefits of the small 2.0x1.6mm package. Consider the operating temperature range specifications to ensure reliability under the intended environmental conditions.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers various frequencies within a standardized small outline package format, catering to modern electronic devices requiring miniaturization and efficiency.

Replacement Considerations

Direct substitutes must match the 117.7352 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available in public documentation.