18QHTF21-2.1809-PD

Oscillators Overview

The 18QHTF21-2.1809-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 2.1809 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby (power down) function. It is housed in a 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface for digital clock signals
• Integrated standby mode for power management
• Compact surface-mount package design

Oscillators Applications

• Low voltage digital circuit clocking
• Portable electronic devices requiring stable timing
• Embedded systems with space constraints

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 to avoid assembly issues.

Oscillators Selection Notes

Select this component when a precise 2.1809 MHz clock signal is required in low-voltage applications. The LVCMOS output ensures compatibility with standard digital logic families. Consider the compact 2.0x1.6 mm package size if board real estate is limited. Verify thermal operating range suitability for the intended environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The 'PD' suffix typically indicates a specific packaging or handling configuration within the manufacturer's lineup.

Oscillators Replacement Considerations

Direct substitutes must match the 2.1809 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as jitter and phase noise if critical to the application.