18QHTF21-42.07789-OE

Oscillators Overview

The 18QHTF21-42.07789-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 42.07789 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package. The unit supports a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to +85°C.

Oscillators Feature Summary

• Integrated enable and disable control mechanism for efficient power management
• LVCMOS output interface compatible with standard digital logic circuits
• Compact surface-mount package design suitable for space-constrained applications

Oscillators Applications

• General purpose clock signal generation in electronic systems
• Timing reference for digital logic interfaces
• Embedded system clock sources requiring low power consumption

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure correct frequency and voltage specifications. Confirm that the LVCMOS output type matches the target circuit requirements. Check the enable/disable pin configuration against the schematic. Ensure the operating temperature range meets the environmental conditions of the final assembly. Validate the package dimensions for PCB footprint compatibility.

Oscillators Selection Notes

Choose this component when a precise 42.07789 MHz clock source is required with low voltage operation. The enable feature allows for dynamic power control in battery-operated devices. Consider the ±50ppm stability requirement for timing-sensitive applications. The small form factor aids in high-density board layouts. Verify compatibility with 1.8V logic levels before integration.

Oscillators Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltages in a standardized small outline package. The 'OE' suffix typically denotes specific packaging or tape-and-reel options. Mercury Electronics specializes in quartz crystals and frequency control products, providing reliable timing solutions for industrial and consumer electronics markets.

Oscillators Replacement Considerations

Direct substitutes must match the 42.07789 MHz frequency, 1.8V supply, and LVCMOS output. Compatible alternatives include other models from the same manufacturer series with identical electrical parameters. Verify pinout and mechanical dimensions to ensure physical interchangeability without PCB redesign.