18QHTF21-7.500-OE

Overview

The 18QHTF21-7.500-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 7.5 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports Enable/Disable functionality for power management
• Utilizes LVCMOS output logic for digital interfacing
• Compact 4-SMD No Lead surface mount package

Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a low-voltage 1.8V operation is required for timing applications. The small 2.0x1.6 mm package is suitable for space-constrained designs. Consider the LVCMOS output compatibility with downstream logic levels. Verify that the enable pin feature meets power-saving requirements for the specific end-use product.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically includes various frequencies and voltage options, catering to diverse electronic timing needs across multiple industrial sectors.

Replacement Considerations

Direct substitutes may include other 7.5 MHz LVCMOS oscillators in 4-SMD packages operating at 1.8V. Verify pinout compatibility and electrical parameters such as phase noise and jitter before substitution. Cross-reference with similar Mercury Electronics variants or competitors offering identical form factors.