18QHTF21-81.750-OE

Overview

The 18QHTF21-81.750-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 81.75 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes 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

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact surface-mount package design

Applications

• General clock signal generation
• Digital system timing references
• Embedded electronics applications

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper assembly and electrical connection.

Selection Notes

Select this component when a precise 81.75 MHz reference is required with low-voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small form factor for space-constrained designs requiring reliable clock sources without complex external buffering.

Part Context

This part belongs to Mercury Electronics' series of quartz-based oscillators. The manufacturer specializes in frequency control products including crystals and various oscillator types. This specific model represents a standard XO variant designed for general-purpose timing applications within their product portfolio.

Replacement Considerations

Check for parts sharing the same frequency, voltage, and package dimensions. Verify output logic compatibility and pin configuration equivalence. Ensure thermal and electrical specifications meet or exceed original requirements for seamless integration.