18QHTF21-3.000-PD

Oscillators Overview

The 18QHTF21-3.000-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a nominal frequency of 3.000 MHz and utilizes an LVCMOS output signal format. The device is designed for a supply voltage of 1.8V and includes a standby or power-down control feature to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down functionality for energy efficiency
• Utilizes LVCMOS output interface

Oscillators Applications

• General-purpose digital circuit timing
• Embedded system clock generation
• Portable electronic devices requiring low power

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications 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 specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a 3.000 MHz reference clock is required for LVCMOS-compatible logic circuits. The choice is driven by the need for a small form factor (2.0x1.6 mm) and low voltage operation. Consider the power-down feature if battery life or thermal management is a critical design constraint. Compare against other frequencies in the 18QHTF21 series if alternative timing standards are needed.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various standard frequencies and supports both 1.8V and 3.3V operations. The 'PD' suffix typically indicates the inclusion of a power-down pin or function. These oscillators are designed to replace discrete crystal and oscillator circuits, providing a ready-made solution for timing applications.

Oscillators Replacement Considerations

Direct replacements must match the 3.000 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility, particularly the power-down control pin assignment. Cross-reference with other manufacturers offering similar SMD XO packages if Mercury Electronics parts are unavailable.