18QHTF21-40.610-PD

Oscillators Overview

The 18QHTF21-40.610-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.61 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic for digital interfacing

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. 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. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a precise 40.61 MHz clock source is required for LVCMOS-compatible circuits. The choice is driven by the need for a low-profile surface-mount package suitable for space-constrained designs. Consider the 1.8V operating voltage if it matches your system's primary power domain. The inclusion of a power-down feature may be relevant for applications requiring energy management during idle states.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a small 2.0x1.6mm SMD package. The series typically supports LVCMOS outputs and low-voltage operations. The '-PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from standard continuous-output variants within the same family.