18QHTF21-4.194304-PD

Oscillators Overview

The 18QHTF21-4.194304-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.194304 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.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Surface-mount 4-SMD no lead package design

Oscillators Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency tolerance and load capacitance specifications. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Check RoHS compliance status if environmental regulations are mandatory for the project. Ensure the 4-SMD package dimensions fit within the designated PCB footprint constraints.

Oscillators Selection Notes

Select this component when a precise 4.194304 MHz reference is required for low-voltage digital systems. The LVCMOS output is appropriate for direct interfacing with standard logic families. Consider the power-down feature if battery life or thermal management is a priority. Verify that the operating temperature range meets the environmental conditions of the intended application site.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd has over 50 years of experience as a pioneer in the quartz crystal industry in Taiwan. This oscillator belongs to their standard XO lineup, designed for reliable frequency control in consumer and industrial electronics. The company emphasizes precision manufacturing and long-term stability for its frequency control products.

Oscillators Replacement Considerations

Cross-reference part numbers such as 18QHTF21-2.304-PD or 18QHTF21-18.1059-PD for similar packages but different frequencies. Ensure any substitute maintains the 1.8V supply requirement and LVCMOS output type. Verify pinout compatibility and physical dimensions before integration.