18QHTF21-40.700-PD

Oscillators Overview

The 18QHTF21-40.700-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 40.7 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 40.7 MHz clock source is required with low power consumption capabilities. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the standby feature if power efficiency is critical. Verify that the operating temperature range meets your environmental conditions prior to integration into the final product design.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small form factor. These components are designed for applications requiring reliable frequency control in space-constrained electronic devices, leveraging Mercury's expertise in quartz crystal manufacturing since 1973.

Oscillators Replacement Considerations

Direct substitutes must match the 40.7 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package dimensions. Check datasheets for equivalent parts from other manufacturers ensuring identical pinout and electrical characteristics to maintain compatibility without redesign.