18QHTF21-75.395-PD

Overview

The 18QHTF21-75.395-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 75.395 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm. The component supports a standby or power-down mode to manage energy consumption during inactive periods.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality for power management
• Utilizes a small form factor surface-mount package

Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 75.395 MHz
• Low-power embedded devices utilizing 1.8V logic levels

Procurement Notes

Verify the exact frequency specification of 75.395 MHz against system requirements. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet before integration.

Selection Notes

Select this component when a precise 75.395 MHz clock source is required within a space-constrained environment. The choice is driven by the need for LVCMOS compatibility and low voltage operation at 1.8V. Consider the physical dimensions of the 2.0 x 1.6 mm package relative to available board space. Evaluate the necessity of the standby feature for overall system power efficiency.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which offers various frequencies within the same package type. The series includes other models such as 18QHTF21-96.768-PD and 18QHTF21-6.000-PD, sharing similar electrical characteristics and packaging but differing in output frequency. This specific model is distinguished by its 75.395 MHz operating point.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants if frequency flexibility exists, such as 18QHTF21-51.200-PD or 18QHTF21-6.760-PD, provided the system timing allows for different frequencies. Cross-brand replacements require matching LVCMOS logic, 1.8V supply, and identical 4-SMD package dimensions.