18QHTF21-40.430-PD

Oscillators Overview

The 18QHTF21-40.430-PD is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 40.43 MHz with an LVCMOS output signal. The device functions at a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode capability
• Utilizes LVCMOS output interface

Oscillators Applications

• General electronic circuits requiring precise timing
• Embedded systems utilizing standard clock signals
• Portable devices benefiting from low-power standby modes

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. 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 to guarantee proper assembly and electrical connectivity.

Oscillators Selection Notes

Select this component when a small form factor is required alongside standard LVCMOS compatibility. The integrated standby function makes it suitable for battery-operated applications where power conservation during idle periods is critical. Ensure the operating temperature range meets the environmental conditions of the target application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series is characterized by its small physical size and standardized output levels. The 'PD' suffix typically indicates the inclusion of a power-down control pin, allowing for active management of the oscillator's state.

Oscillators Replacement Considerations

Direct replacements must match the 40.43 MHz frequency, 1.8V supply, and LVCMOS output type. Verify that any substitute component offers identical package dimensions (2.0x1.6 mm) and supports the same standby functionality to ensure mechanical and electrical compatibility within the existing design.