18QHTF21-25.176-PD

Oscillators Overview

The 18QHTF21-25.176-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.176 MHz and utilizes an LVCMOS output interface. The device functions with a supply voltage of 1.8V and features a standby mode for power down capabilities. It is housed in a compact 4-SMD, no lead package.

Oscillators Feature Summary

• Standard crystal oscillator configuration
• LVCMOS output signal compatibility
• Integrated standby power management

Oscillators Applications

• General timing reference circuits
• Digital communication systems
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure correct voltage and package alignment. Confirm that the LVCMOS output level matches the receiving logic family requirements. Check datasheet specifications for load capacitance and drive strength to guarantee signal integrity in the target application design.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required for timing applications. The LVCMOS interface suits standard digital logic families. Consider the 4-SMD footprint for space-constrained PCB layouts. Ensure the 25.176 MHz frequency aligns with system clock generation needs.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The PD suffix typically indicates power-down functionality. This model provides a stable clock source for modern electronic devices requiring precise timing synchronization.

Oscillators Replacement Considerations

Direct substitutes must match the 25.176 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility before substitution. Alternative parts from other manufacturers require electrical parameter validation.