18QHTF21-8.004-OE

Overview

The 18QHTF21-8.004-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.004 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Provides standard clock signal generation via LVCMOS output interface
• Operates on a low voltage supply rail for power efficiency
• Utilizes a compact surface-mount package design for space-constrained applications

Applications

• General purpose clock signal distribution in electronic circuits
• Timing reference sources for digital systems requiring 1.8V operation
• Embedded devices utilizing small form factor components

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power architecture. Confirm that the 4-SMD no-lead package footprint matches your PCB layout specifications to avoid assembly issues during manufacturing.

Selection Notes

Select this component when a precise 8.004 MHz timing source is required within a low-voltage environment. Consider the physical size constraints of the 2.0x1.6 mm package relative to available board space. Evaluate the LVCMOS output compatibility with downstream logic levels to ensure signal integrity without additional buffering or level shifting requirements.

Part Context

This oscillator belongs to the Mercury Electronics 18QHTF21 series, which offers various frequency options within a standardized small outline package. The series supports multiple supply voltages and output types, allowing designers to maintain consistent mechanical footprints across different product lines while adjusting electrical parameters as needed for specific application requirements.

Replacement Considerations

Direct substitutes include other 8.004 MHz oscillators from Mercury Electronics such as the 18QHTF21-8.004-PD, provided the pinout and electrical characteristics are compatible. Cross-manufacturer replacements require verification of package dimensions, voltage levels, and output drive capabilities to ensure functional equivalence.