18QHTF21-62.19751-PD

Overview

The 18QHTF21-62.19751-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 62.19751 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Standard XO configuration with LVCMOS output
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General digital timing circuits
• Embedded systems requiring precise clock signals
• Portable electronic devices utilizing low-voltage operation

Procurement Notes

Verify the specific frequency suffix matches the required system clock speed. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint is compatible with the PCB layout. Check for any specific operating temperature range requirements if used in extreme environments.

Selection Notes

Select this component when a stable 62.19751 MHz reference is needed with minimal power consumption. The LVCMOS interface ensures compatibility with standard digital logic families. The small form factor suits space-constrained designs. Consider the standby feature if power efficiency during idle states is a priority for the application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan producing crystals and oscillators. This series typically offers standard performance levels suitable for general-purpose timing applications across various consumer and industrial electronics.

Replacement Considerations

Direct replacements must match the 62.19751 MHz frequency, 1.8V voltage, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility before substitution. Other Mercury parts in the 18QHTF21 series may differ in frequency or voltage.