18QHTF21-12.650-OE

Overview

The 18QHTF21-12.650-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.65 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for timing and clock signal generation applications requiring low profile and precise frequency stability.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features 1.8V enable/disable control for power optimization
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• Timing and clock signal generation in electronic devices
• Consumer electronics requiring low-profile oscillators
• Portable devices utilizing 1.8V logic systems

Procurement Notes

Verify the specific suffix OE against the manufacturer's current datasheet to confirm pinout and electrical specifications. Ensure the 1.8V supply requirement aligns with the target circuit design. Confirm the 4-SMD no-lead package dimensions match the PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a 12.65 MHz frequency is required with LVCMOS outputs. Consider the 1.8V operating voltage and enable/disable functionality for power-sensitive designs. The small 2.0x1.6mm package is suitable for space-constrained applications compared to larger oscillator footprints.

Part Context

This part belongs to the Mercury Electronics 18QHTF series of standard crystal oscillators. The series offers various frequencies and voltage options within a consistent 4-SMD no-lead form factor. The 18QHTF21 variant specifically targets low-voltage applications with integrated control features for modern portable electronics.

Replacement Considerations

Direct substitutes include other 12.65 MHz LVCMOS oscillators in 4-SMD packages from Mercury Electronics, such as the 3QHTF21 or 25QHM series variants, provided they support 1.8V operation and enable/disable functions. Verify pin compatibility and thermal characteristics before substitution.