18QHTF21-12.568343-PD

Overview

The 18QHTF21-12.568343-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.568343 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interfacing
• Includes standby capability to reduce power consumption during inactive periods
• Designed for surface-mount assembly using leadless SMD packaging

Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded applications requiring precise frequency stability

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to ensure correct configuration. Confirm that the required frequency and voltage specifications match the system requirements before procurement. Check official datasheets for pinout and electrical characteristics to guarantee compatibility with the target design.

Selection Notes

Select this component when a 1.8V supply and LVCMOS interface are required. Ensure the PCB layout supports the 4-SMD no-lead form factor. Verify that the operating temperature range meets the environmental conditions of the intended application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies within a small footprint, catering to portable and space-constrained electronics requiring stable clock sources.

Replacement Considerations

Direct substitutes must match the 12.568343 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify thermal and electrical specifications of any alternative components.