18QHTF21-4.194-PD

Oscillators Overview

The 18QHTF21-4.194-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.194 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports Low Voltage CMOS (LVCMOS) output logic levels
• Includes Standby mode capability for power reduction
• Utilizes a surface-mount 4-SMD no-lead package design

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 4.194 MHz timing source is required for low-power applications. The LVCMOS interface ensures compatibility with standard digital logic families operating at 1.8V. Consider the small form factor for space-constrained designs requiring reliable clock signals without excessive power consumption.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a standardized 2.0x1.6mm SMD package. These components are engineered for stable frequency control in consumer electronics and industrial applications requiring compact timing solutions.

Oscillators Replacement Considerations

Direct substitutes must match the 4.194 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as jitter and phase noise against the original specification sheet.