18QHTF21-10.3681-PD

Overview

The 18QHTF21-10.3681-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 10.3681 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down (Standby) control function. 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 for energy-efficient applications
• Includes standby mode capability to reduce power consumption when inactive
• Provides standard LVCMOS output signals compatible with digital interfaces

Applications

• General-purpose timing clock generation
• Embedded system microcontroller clocks
• Digital signal processing circuits

Procurement Notes

Verify the specific suffix 'PD' indicates the power-down feature as documented. Confirm the operating temperature range and load capacitance requirements against the target design specifications. Ensure the 1.8V supply rail stability meets the oscillator's noise sensitivity requirements before finalizing the bill of materials.

Selection Notes

Select this component when a precise 10.3681 MHz reference is required in space-constrained designs. The 2.0x1.6mm footprint suits high-density PCB layouts. Consider the LVCMOS interface compatibility with downstream logic gates. Evaluate the need for active power-down management in the system firmware.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronic. The series offers various frequencies within a standardized small outline package. The 'PD' designation typically denotes the inclusion of a power-down pin or control mechanism for standby functionality.

Replacement Considerations

Direct substitutes must match the 10.3681 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that alternative sources support the same power-down control logic and electrical characteristics.