18QHTF21-75.305-OE

Overview

The 18QHTF21-75.305-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 75.305 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This surface-mount oscillator is engineered for integration into electronic circuits requiring precise clock signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD package footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics and reliability data to ensure compliance with your project standards.

Selection Notes

Select this component when a stable 75.305 MHz clock source is required in space-constrained designs. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable pin feature if power management during idle states is necessary. Verify that the operating temperature range meets your environmental conditions. Compare against other Mercury oscillators in the series for alternative frequencies or package sizes if needed.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a small form factor. The 'OE' suffix typically denotes specific ordering or packaging variations defined by the manufacturer. These oscillators are part of Mercury's broader portfolio of frequency control products, which includes quartz crystals and resonators.

Replacement Considerations

Direct replacements must match the 75.305 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Check equivalent models from Mercury or other manufacturers ensuring identical pinout and electrical parameters. Verify that any substitute supports the enable/disable function if utilized in the original design.