18QHTF21-42.403333-PD

Oscillators Overview

The 18QHTF21-42.403333-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.403333 MHz with an LVCMOS output signal. The device requires a 1.8V supply voltage and supports a standby power-down function. It features a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C. The component is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Provides LVCMOS output signals
• Ensures frequency stability of ±50ppm

Oscillators Applications

• General electronic systems requiring precise clock generation
• Embedded devices needing low-power standby modes
• Consumer electronics utilizing surface mount technology

Oscillators Procurement Notes

Verify the specific frequency tolerance and package dimensions against official datasheets before integration. Confirm that the 1.8V supply requirement aligns with the target system's power architecture. Ensure the LVCMOS output compatibility matches the receiving logic inputs. Check for RoHS compliance status if environmental regulations apply to the final product assembly.

Oscillators Selection Notes

Select this component when a stable 42.403333 MHz reference is required in space-constrained designs. The 4-SMD no-lead package facilitates automated surface mounting processes. Consider the ±50ppm stability specification for timing-sensitive circuits. The integrated standby feature offers energy efficiency benefits for battery-operated or portable equipment applications.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, designed for high-reliability frequency control. The series utilizes quartz crystal technology to maintain accurate timing across industrial temperature ranges. The specific model integrates standard interface protocols for easy integration into digital systems requiring precise clock synchronization.

Oscillators Replacement Considerations

Direct substitutes include other 42.403333 MHz oscillators with identical 1.8V LVCMOS specifications and 4-SMD packages. Verify pinout compatibility and thermal characteristics when cross-referencing alternative manufacturers. Ensure equivalent frequency stability ratings are maintained for critical timing applications.