18QHTF21-57.7617-PD

Overview

The 18QHTF21-57.7617-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.7617 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for timing applications requiring precise clock signals in space-constrained electronic systems.

Feature Summary

• Supports standby mode for power reduction
• Compact surface-mount package design
• LVCMOS output compatibility

Applications

• General purpose clock generation
• Embedded system timing
• Consumer electronics

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD footprint matches the PCB layout requirements. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Selection Notes

Choose this model when a low-profile, 1.8V LVCMOS oscillator is required for 57.7617 MHz applications. Consider the 2.0x1.6 mm size constraint for dense board layouts. Evaluate the need for a power-down feature to manage system power consumption. Compare performance metrics such as phase noise and stability if available in the manufacturer documentation.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized small outline package. The series typically supports LVCMOS outputs and includes power-down capabilities. It serves as a timing reference solution for modern portable and industrial devices requiring reliable clock signals.

Replacement Considerations

Direct substitutes must match the 57.7617 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical specifications with alternative manufacturers.