18QHTF21-46.15787-PD

Oscillators Overview

The 18QHTF21-46.15787-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 46.15787 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 to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. This component is suitable for applications requiring precise timing signals in low-voltage digital systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby and power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface mount package

Oscillators Applications

• Digital clock signal generation
• Low-voltage embedded system timing
• Portable electronic devices requiring power efficiency

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design 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 RoHS compliance documentation if required by your manufacturing standards. Validate the operating temperature range suitability for your intended environment.

Oscillators Selection Notes

Select this oscillator when a precise 46.15787 MHz reference is needed in space-constrained designs. The LVCMOS output ensures compatibility with standard digital logic families. The integrated power-down feature makes it ideal for battery-operated applications where standby current reduction is critical. Consider the 1.8V operating voltage when designing power delivery networks. The small form factor supports high-density board layouts.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, which specializes in quartz crystal and oscillator products. The manufacturer has a history dating back to 1973, focusing on frequency control components. The series typically offers various frequencies within a standardized package size, allowing for consistent mechanical integration across different product lines while providing electrical flexibility through selectable frequencies.

Oscillators Replacement Considerations

Direct substitutes must match the 46.15787 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and stability. Cross-reference with other manufacturers offering similar surface-mount oscillators in the same footprint. Ensure the replacement supports the required standby function if power management is a design constraint.