18QHTF21-28.6363636-PD

Oscillators Overview

The 18QHTF21-28.6363636-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 28.6363636 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function. 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 operation at 1.8V for energy efficiency
• Includes standby mode capability for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Features a small form factor suitable for space-constrained designs

Oscillators Applications

• General clock generation for embedded systems
• Timing reference for digital signal processing circuits
• Clock source for communication interfaces requiring precise timing

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout to avoid assembly issues. Cross-reference the datasheet for thermal performance limits under continuous operation conditions.

Oscillators Selection Notes

Select this component when a precise 28.6363636 MHz clock signal is required with low power consumption constraints. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the standby feature if power management during idle states is critical for the application. Evaluate the physical size constraints to ensure the 2.0x1.6mm package fits within the designated area on the printed circuit board.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small outline package. The 'PD' suffix indicates the inclusion of a power-down control pin, allowing for active standby modes. This family is designed for applications requiring reliable timing sources in portable and industrial electronics.

Oscillators Replacement Considerations

Direct replacements must match the 28.6363636 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that any substitute also supports the power-down functionality. Check for equivalent frequency stability and phase noise specifications to ensure system performance is maintained.