18QHTF21-41.440-PD

Oscillators Overview

The 18QHTF21-41.440-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a standard frequency of 41.44 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 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports standby mode via power-down control
• Utilizes LVCMOS output logic interface
• Compact surface-mount package design

Oscillators Applications

• General digital circuit clocking
• Embedded system timing references
• Portable electronic devices requiring low voltage operation

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 41.44 MHz reference is required for LVCMOS-compatible circuits. The choice is driven by the need for a low-voltage 1.8V operation and the integration of a power-down feature for energy management. The small 2.0x1.6mm form factor makes it suitable for space-constrained designs where standard leaded packages are not viable.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's quartz industry. This specific model represents a standard XO variant within their portfolio, distinguished by its specific frequency and low-profile SMD packaging suitable for modern electronics manufacturing.

Oscillators Replacement Considerations

Direct substitutes include other 41.44 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify pin compatibility and electrical specifications such as current consumption and startup time before swapping.