18QHTF21-1.300-PD

Overview

The 18QHTF21-1.300-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.3 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.

Feature Summary

• LVCMOS output interface
• Integrated power-down capability
• Compact surface-mount form factor

Applications

• General clock signal generation
• Low-power embedded systems
• Digital circuit timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD package footprint matches the PCB design constraints for proper soldering and thermal management.

Selection Notes

Select this component when a low-frequency, low-voltage clock source is required. The LVCMOS output ensures compatibility with standard digital logic families. The power-down feature aids in energy conservation for battery-operated devices. Verify that the operating temperature range meets the environmental conditions of the intended application.

Part Context

This part belongs to the QHTF series of oscillators from Mercury Electronics. The series offers various frequencies and voltages. The 18QHTF21 variant specifically denotes the 1.8V supply and 4-SMD package type. It serves as a precise timing element for microcontrollers and communication interfaces requiring stable clock signals.

Replacement Considerations

Check for direct substitutes within the same series, such as other frequencies in the 18QHTF21 line. Ensure any replacement maintains the LVCMOS output and 1.8V operation. Verify pinout and dimensional compatibility to avoid PCB redesign.