18QHTF21-8.6436-PD

Overview

The 18QHTF21-8.6436-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.6436 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic for digital interfacing
• Includes Standby or Power Down functionality to reduce power consumption
• Utilizes surface-mount technology with a leadless 4-SMD package design

Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded applications requiring compact oscillator solutions

Procurement Notes

Verify the specific ordering suffix against official Mercury Electronics documentation to ensure correct configuration. Confirm that the PD suffix aligns with the required standby functionality and packaging specifications. Cross-reference the part number with authorized distributors to validate authenticity and availability status before finalizing procurement orders.

Selection Notes

Select this component when a precise 8.6436 MHz timing source is required for 1.8V logic interfaces. Ensure the application environment supports the specified operating temperature range. Consider the physical footprint constraints of the 2.0x1.6mm package during PCB layout planning to guarantee proper soldering and mechanical stability.

Part Context

This model belongs to the QuikXO series of fast-delivery CMOS output clock oscillators from Mercury Electronics. The series offers both standard and custom frequency options built to order. Mercury Electronics has a history dating back to 1973, specializing in quartz crystal and frequency control products.

Replacement Considerations

Direct substitutes must match the 8.6436 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics with alternative manufacturers before implementation.