18QHTF21-34.285-PD

Oscillators Overview

The 18QHTF21-34.285-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 34.285 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

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

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no lead package dimensions to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 34.285 MHz clock source is required with low voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the power-down feature if system-level power efficiency is a priority. Verify that the operating temperature range meets the environmental conditions of the intended deployment scenario.

Oscillators Part Context

This part belongs to the Mercury Electronics SMD oscillator series, designed for high-frequency stability in small form factors. The manufacturer specializes in quartz-based frequency control products, leveraging decades of expertise in crystal manufacturing. This specific model represents a standard XO variant optimized for modern portable and compact electronic devices requiring reliable timing signals.

Oscillators Replacement Considerations

Cross-reference with other 34.285 MHz LVCMOS oscillators in the 2.0x1.6mm package from compatible manufacturers. Ensure pinout compatibility and electrical specifications match exactly. Verify that any substitute part maintains the same standby current characteristics and output drive strength to prevent signal integrity issues.