18QHTF21-4.516-OE

Oscillators Overview

The 18QHTF21-4.516-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 4.516 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Consumer electronics requiring precise frequency standards

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a stable 4.516 MHz clock source is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage constraint to ensure compatibility with your system's power distribution network. Evaluate the enable/disable feature if power efficiency during idle states is a critical design requirement. Compare the physical dimensions of the 4-SMD package against available board space constraints.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals, oscillators, and filters. The company has a long history in the industry, focusing on precision timing solutions. This oscillator belongs to their standard XO line, providing reliable clock signals for various electronic applications.

Oscillators Replacement Considerations

Direct substitutes may include other 4.516 MHz LVCMOS oscillators from different manufacturers with identical pinouts and voltage requirements. Verify electrical parameters such as frequency stability and phase noise before substitution. Ensure the replacement part supports the same enable/disable control mechanism and fits the 4-SMD no-lead package.