18QHTF21-28.636-PD

Oscillators Overview

The 18QHTF21-28.636-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.636 MHz and utilizes LVCMOS output levels. 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 with dimensions of 2.0x1.6mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power reduction
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock generation in electronic circuits
• Timing reference for low-voltage digital systems
• Portable devices requiring power-efficient oscillators

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to ensure reliability under your application conditions.

Oscillators Selection Notes

Select this component when a 28.636 MHz timing source is required with LVCMOS outputs. Consider it for designs constrained by space due to its small 2.0x1.6mm footprint. Evaluate the 1.8V operation against your system voltage availability. The standby feature makes it suitable for battery-powered applications where power conservation is critical during idle periods.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The manufacturer has been producing frequency control products since 1973. This series typically offers standard XO options with various frequencies and voltage levels, catering to general timing needs in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes may include other 28.636 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical specifications such as current consumption and startup time. Cross-reference with similar Mercury parts like the 18QHTF21-51.200-PD if frequency differences are acceptable.