18QHTF21-9.984625-PD

Overview

The 18QHTF21-9.984625-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 9.984625 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Provides LVCMOS output signal compatibility

Applications

• Low-voltage precision timing circuits
• Portable electronic devices requiring compact oscillators
• Systems utilizing LVCMOS logic interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet to ensure reliable oscillator performance.

Selection Notes

Select this component when a small form factor 2.0x1.6mm footprint is required alongside LVCMOS compatibility. Ensure the application supports the 1.8V operating voltage and can utilize the standby feature if power efficiency is a priority over continuous operation.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a standardized SMD package. The series is designed for applications needing precise timing in space-constrained environments, providing a balance between size and performance.

Replacement Considerations

Direct substitutes must match the 9.984625 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and thermal characteristics before swapping manufacturers.