18QHTF21-42.656-PD

Oscillators Overview

The 18QHTF21-42.656-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.656 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality to reduce power consumption
• Utilizes a small form factor 4-SMD no lead package

Oscillators Applications

• Digital signal processing circuits
• Communication equipment timing references
• Embedded system clock generation

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet for your environment.

Oscillators Selection Notes

Select this model when a 42.656 MHz clock source is required with LVCMOS outputs. Consider the 1.8V operating voltage and power-down capability for battery-sensitive designs. Evaluate the 2.0x1.6mm package size against available board space. Compare performance metrics such as jitter and stability if multiple suppliers offer similar frequencies.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal components. The series offers various standard frequencies packaged in small SMD formats. Mercury Electronics has a long history in Taiwan manufacturing frequency control products, providing reliable timing solutions for electronic industries.

Oscillators Replacement Considerations

Direct substitutes must match the 42.656 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics with alternative manufacturers offering similar surface-mount oscillators.