18QHTF21-9.500-OE

Overview

The 18QHTF21-9.500-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fundamental frequency of 9.5 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an active enable/disable control pin to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly in space-constrained electronic designs.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Embedded systems requiring precise clock timing
• Consumer electronics with limited board space
• Industrial control modules utilizing low-voltage logic

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Check for any specific reflow soldering profile recommendations provided in the manufacturer datasheet to ensure reliable joint formation during assembly processes.

Selection Notes

Select this component when a 9.5 MHz clock signal is required with low power consumption capabilities. The LVCMOS output is suitable for direct interfacing with standard digital ICs operating at 1.8V. Consider the enable pin feature if power management is critical. Compare alternative frequencies within the same series if the exact 9.5 MHz rate does not match the target application's timing specifications.

Part Context

This part belongs to the QHTF21 series of miniature oscillators from Mercury Electronics. The series is characterized by small form factors and low voltage operation. Mercury Electronics is a established manufacturer of frequency control products, known for quartz crystal technologies. This specific model represents a standard XO variant within their portfolio of surface-mount timing devices.

Replacement Considerations

The 18QHTF21-9.741-OE is listed as an alternate part number within the same product family. Verify that the frequency difference between 9.5 MHz and 9.741 MHz is acceptable for the target application. Other equivalents may exist but require careful comparison of electrical parameters and pinout configurations to ensure functional compatibility.