18QHTF21-28.636363-PD

Oscillators Overview

The 18QHTF21-28.636363-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.636363 MHz and utilizes HCMOS 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 with dimensions of 2.0mm x 1.6mm. This component is designed for standard clock signal generation applications requiring precise timing.

Oscillators Feature Summary

• HCMOS output logic for digital interface compatibility
• Integrated standby mode for power reduction
• Compact surface-mount package design

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the HCMOS output levels are compatible with the receiving logic inputs to prevent signal integrity issues during operation.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific high-frequency HCMOS output. Consider the small form factor if board space is limited. Verify that the operating temperature range meets your environmental specifications and that the power-down feature is necessary for your application's power management strategy.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and output types. The 'PD' suffix typically indicates the presence of a power-down control pin. Mercury Electronics specializes in quartz crystals and frequency control products, providing these components for industrial and consumer electronics markets.

Oscillators Replacement Considerations

Direct replacements must match the 28.636363 MHz frequency, 1.8V supply, HCMOS output, and 2.0x1.6mm package size. Check datasheets for equivalent parts from other manufacturers ensuring identical pinout and electrical characteristics. Verify that any substitute also supports the standby function if required.