18QHTF21-47.990-PD

Oscillators Overview

The 18QHTF21-47.990-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a nominal frequency of 47.99 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby (power down) function to reduce power consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. The component is supplied in strip packaging format.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby mode for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power

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 specifications. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Oscillators Selection Notes

Select this component when a precise 47.99 MHz clock source is required for digital circuits. Consider the 1.8V operating voltage constraint and ensure compatibility with downstream logic levels. The small 2.0x1.6 mm form factor makes it suitable for space-constrained designs. Evaluate the need for the standby feature if power efficiency is a critical design parameter.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronics. The series typically offers various frequencies within a compact package. The 'PD' suffix indicates the inclusion of a power-down control pin or functionality. These components are generally used as primary clock sources in consumer electronics and industrial applications.

Oscillators Replacement Considerations

Direct replacements must match the 47.99 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as jitter and stability. Consult manufacturer cross-reference lists for verified equivalents.