18QHTF21-40.009-PD

Oscillators Overview

The 18QHTF21-40.009-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 40.009 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and a standby power-down mode. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount assembly.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby power-down functionality to reduce energy consumption
• Utilizes a 4-SMD no lead package for space-efficient surface mounting

Oscillators Applications

• General-purpose clock signal generation in electronic circuits
• Embedded systems requiring precise timing references
• Consumer electronics with low-voltage power constraints

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 PCB footprint matches the 4-SMD no lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a stable 40.009 MHz reference is required with minimal power usage. The LVCMOS output ensures compatibility with standard digital logic families. Consider the operating temperature range and package size constraints relative to other available frequencies in the 18QHTF21 series to ensure optimal fit for the target application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series offers various standard frequencies with consistent electrical characteristics and packaging. The 'PD' suffix typically indicates the inclusion of a power-down feature, distinguishing it from continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 40.009 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package. Verify pinout compatibility and thermal performance. Consult manufacturer cross-reference lists for equivalent parts from other suppliers offering identical specifications.