18QHTF21-13.5546-PD

Overview

The 18QHTF21-13.5546-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.5546 MHz with LVCMOS output logic and a 1.8V supply voltage. The device features a standby (power down) function and is housed in a compact 4-SMD, No Lead package.

Feature Summary

• Supports low power consumption via standby mode
• Provides stable timing signals through LVCMOS interface
• Utilizes hermetic ceramic leadless SMD construction

Applications

• Portable electronic devices requiring low power operation
• Communication equipment utilizing standard clock frequencies
• Consumer electronics with space-constrained PCB layouts

Procurement Notes

Verify the exact frequency suffix against official datasheets to ensure compatibility with system requirements. Confirm that the 1.8V supply voltage aligns with target circuit designs. Check for specific packaging variations or tape-and-reel options if available from authorized distributors.

Selection Notes

Choose this component when a precise 13.5546 MHz reference is required with minimal power draw. Ensure the host system supports LVCMOS signaling levels. Consider the small footprint for high-density board designs where traditional packages are unsuitable.

Part Context

This part belongs to the QHTF series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies within the 1.0 MHz to 200 MHz range across multiple supply voltages and package types, catering to diverse timing needs in modern electronics.

Replacement Considerations

Direct substitutes include other 13.5546 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and electrical specifications before swapping.