18QHTF21-27.648-PD

Oscillators Overview

The 18QHTF21-27.648-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a fixed frequency of 27.648 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and an integrated standby or power-down function to minimize energy consumption when not in active use. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount designs.

Oscillators Feature Summary

• Integrated standby mode for power management
• LVCMOS output compatibility
• Compact 4-SMD no-lead form factor

Oscillators Applications

• Portable electronic devices requiring low power
• Consumer electronics with limited board space
• Industrial control systems needing stable timing

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct output type and package variant. Confirm that the 1.8V supply requirement aligns with your system design before procurement. Check for any recent revisions to the pinout or electrical specifications to avoid integration errors during production.

Oscillators Selection Notes

Select this component when a precise 27.648 MHz clock signal is required with minimal power consumption. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the 2.0x1.6mm footprint for high-density PCB layouts where larger oscillators cannot fit.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-footprint crystal oscillators. The series typically offers various frequencies and supply voltages, catering to modern portable and industrial applications that demand reliable timing solutions within strict size constraints.

Oscillators Replacement Considerations

Direct substitutes may include other 27.648 MHz LVCMOS oscillators in 4-SMD packages from manufacturers like Epson or Nihon Dempa Kogyo. Ensure voltage levels and pin configurations match before replacement.