18QHTF21-46.858333-PD

Oscillators Overview

The 18QHTF21-46.858333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 46.858333 MHz with an LVCMOS output logic level. 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 2.0mm x 1.6mm. The component is designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Integrates LVCMOS output interface for digital circuit compatibility
• Supports standby mode to reduce power consumption during idle periods
• Utilizes a small form factor SMD package for space-constrained designs

Oscillators Applications

• Digital signal processing systems requiring stable clock sources
• Communication equipment utilizing specific frequency standards
• Embedded control units needing low-power oscillation modes

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your system design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to avoid assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to maintain component integrity.

Oscillators Selection Notes

Select this component when a precise 46.858333 MHz clock signal is required with minimal power usage. The LVCMOS output ensures direct interfacing with most digital logic families without additional level shifting. Consider the standby feature if power efficiency is critical for battery-operated or portable devices. The small package size makes it suitable for high-density board layouts where space is limited compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized 2.0x1.6mm footprint. The 'PD' suffix indicates the inclusion of a power-down pin or functionality, distinguishing it from continuous-operation variants. This family is designed for applications demanding reliable timing in compact electronic assemblies.

Oscillators Replacement Considerations

Direct substitutes must match the 46.858333 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify equivalent electrical characteristics such as phase noise and stability across the operating temperature range. Ensure the replacement part also supports the standby function if power management is required in the design.