18QHTF21-9.500-PD

Overview

The 18QHTF21-9.500-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 9.5 MHz and utilizes LVCMOS output logic 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 suitable for surface-mount assembly.

Feature Summary

• LVCMOS output interface
• Standby power-down capability
• Compact 4-SMD no lead package

Applications

• Low voltage digital circuits requiring stable clock signals
• Portable electronic devices with power constraints
• Embedded systems utilizing LVCMOS logic families

Procurement Notes

Verify the specific operating temperature range 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 footprint matches your PCB layout guidelines to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS compatibility. Consider the 9.5 MHz frequency for specific timing applications. Evaluate the need for power-down functionality to manage system energy consumption. Compare physical dimensions against available board space to ensure the 4-SMD package fits within the designated area without interference.

Part Context

This model belongs to Mercury Electronics' series of surface-mount crystal oscillators. The '18' prefix typically indicates the 1.8V supply voltage requirement. The 'PD' suffix denotes the inclusion of a power-down pin or feature. This family targets applications demanding small form factors and efficient power usage in modern electronic designs.

Replacement Considerations

Check for direct equivalents such as the 25QHTF21-9.500-PD if voltage tolerance allows. Verify pinout compatibility and electrical specifications before substituting. Ensure the replacement maintains the same LVCMOS output characteristics and frequency stability.