18QHTF21-68.8128-PD

Overview

The 18QHTF21-68.8128-PD is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 68.8128 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, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated standby mode to reduce power consumption during idle periods
• Compact 4-SMD no-lead package design for space-constrained PCB layouts

Applications

• General purpose timing clock generation
• Digital signal processing systems
• Communication equipment requiring stable frequency references

Procurement Notes

Verify the specific ordering suffix and frequency tolerance against the official datasheet before procurement. Ensure the 1.8V supply requirement aligns with the target system's voltage rails. Confirm that the 4-SMD package dimensions fit within the designated footprint on the printed circuit board to avoid assembly issues.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The inclusion of a power-down feature makes it suitable for battery-operated or power-sensitive designs. Consider the 4-SMD form factor if board space is limited compared to larger through-hole or standard SMD oscillator packages.

Part Context

Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals, oscillators, and filters. The company has a long history in the industry, focusing on providing reliable timing solutions for various electronic applications globally.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.