18QHTF21-40.000-PD

Oscillators Overview

The 18QHTF21-40.000-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a frequency of 40.0 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down (standby) function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

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

Oscillators Applications

• General clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications 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 soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 40.0 MHz reference is needed with minimal power usage. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the small 2.0x1.6mm form factor for space-constrained designs. Verify that the operating temperature range meets your environmental conditions prior to integration into the final product.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, designed for applications requiring stable clock signals in compact footprints. The 'PD' suffix indicates the inclusion of a power-down control feature, allowing the oscillator to be disabled when not in use to reduce overall system power consumption.

Oscillators Replacement Considerations

Direct substitutes must match the 40.0 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Cross-reference pinouts and electrical characteristics carefully to ensure functional equivalence without redesigning the host circuit board.