18QHTF21-11.9808-PD

Overview

The 18QHTF21-11.9808-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.9808 MHz and utilizes LVCMOS output logic. 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 2.0x1.6 mm. The component is designed for applications requiring precise timing signals within a small form factor.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby or power-down functionality to reduce power consumption
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• General purpose timing clock generation
• Embedded systems requiring low-power oscillators
• Digital signal processing circuits

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 PCB footprint matches the 2.0x1.6 mm SMD package dimensions to avoid assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability during manufacturing.

Selection Notes

Select this component when a low-profile, low-voltage oscillator is required for space-constrained designs. The LVCMOS output is suitable for direct interfacing with most digital logic families. Consider the standby feature if power efficiency is a critical design parameter. Verify that the operating temperature range meets your environmental specifications. Compare against other models in the 18QHTF21 series for alternative frequencies or voltage levels.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series offers various frequencies and voltage options within a standardized 2.0x1.6 mm package. The 'PD' suffix typically indicates the presence of a power-down pin or function. This series is designed for consumer electronics and portable devices where size and power consumption are key constraints.

Replacement Considerations

Compatible substitutes include other 18QHTF21 series parts with identical frequency and voltage, such as 18QHTF21-11.9808 without the PD suffix if power-down is not needed. Cross-reference with other manufacturers offering 2.0x1.6mm LVCMOS oscillators at 11.9808 MHz and 1.8V. Ensure pinout compatibility and electrical specifications match exactly before substitution.