18QHTF21-40.260-PD

Oscillators Overview

The 18QHTF21-40.260-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.26 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby function for power down capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby mode for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to guarantee proper soldering and electrical connection during assembly.

Oscillators Selection Notes

Select this component when a precise 40.26 MHz clock source is required for low-power digital applications. The choice depends on the compatibility of the LVCMOS output with the receiving logic family. Consider the physical size constraints due to the small 2.0x1.6 mm package. Evaluate the need for power-down functionality if energy efficiency is a critical design parameter.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series is characterized by its small form factor and low voltage operation. These components are designed for modern electronic devices requiring reliable timing sources in space-constrained environments. The manufacturer has a long history in quartz crystal production.

Oscillators Replacement Considerations

Direct substitutes must match the 40.26 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar SMD oscillators ensuring identical electrical parameters and mechanical dimensions for seamless integration.