18QHTF21-10.949297-OE

Overview

The 18QHTF21-10.949297-OE is a surface-mount crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 10.949297 MHz with LVCMOS output logic. The device requires a 2.5V supply voltage and features an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package measuring 2.5mm x 2.0mm with a maximum seated height of 0.80mm. The unit supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated enable/disable control for efficient power management
• Compact surface-mount design suitable for space-constrained PCB layouts
• LVCMOS output compatibility for standard digital interfaces

Applications

• Embedded systems requiring precise clock timing
• Consumer electronics with limited board space
• Industrial control modules operating in wide temperature ranges

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 2.5V supply voltage aligns with your system's power rails. Ensure the 4-SMD package dimensions fit within your designated footprint on the printed circuit board. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Selection Notes

Select this component when a low-profile, surface-mount oscillator is required for applications needing a 10.949297 MHz reference. Consider the 2.5V supply constraint and LVCMOS output level when interfacing with downstream logic circuits. Evaluate the thermal performance within the specified -40°C to +85°C range to ensure stability under operational conditions. Compare package size against available board real estate to confirm physical compatibility.

Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages in a standardized small outline package. These components are designed for general-purpose clock generation in portable and industrial devices. The 'OE' suffix typically denotes an enable pin configuration, allowing external control over the oscillator's operation state.

Replacement Considerations

Direct substitutes must match the 10.949297 MHz frequency, 2.5V supply, LVCMOS output, and 4-SMD package dimensions. Verify equivalent electrical characteristics such as phase noise and jitter if critical to the application. Cross-reference with other manufacturers offering similar small-form-factor oscillators with enable functions.