18QHTF21-81.200-OE

Overview

The 18QHTF21-81.200-OE is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 81.2 MHz and utilizes LVCMOS output logic. The device supports 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 2.5mm x 2.0mm. This component is designed for standard clock signal generation applications requiring precise timing.

Feature Summary

• Supports enable and disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Compact surface-mount package design for space-constrained PCB layouts

Applications

• Digital clock signal generation
• Data communication interfaces
• Microprocessor clock sources

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to ensure correct voltage and package specifications. Confirm that the 1.8V supply requirement aligns with the target system design. Check for RoHS compliance status if environmental regulations apply to the end product. Ensure the enable pin configuration matches the system control logic requirements before finalizing procurement.

Selection Notes

Select this component when a stable 81.2 MHz clock source is required for low-voltage digital circuits. The 1.8V operating voltage makes it suitable for modern low-power systems. Consider the small 2.5x2.0mm footprint for dense board designs. Verify that LVCMOS output levels are compatible with the receiving logic inputs of the connected components.

Part Context

This oscillator belongs to the Mercury Electronics XO series, which provides standard frequency control solutions. The brand has decades of experience in quartz crystal manufacturing. The model designation indicates specific electrical parameters including frequency and voltage. These components are widely used in consumer electronics and industrial equipment requiring reliable timing references.

Replacement Considerations

Direct substitutes must match the 81.2 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and enable function support. Cross-reference with other Mercury Electronics models or industry-standard oscillators having identical electrical characteristics and physical dimensions.