18QHTF21-1.1386-PD

Overview

The 18QHTF21-1.1386-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 1.1386 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down mode. It is housed in a compact 4-SMD, No Lead package.

Feature Summary

• Standard XO configuration for precise timing applications
• LVCMOS output logic compatibility
• Integrated standby power-down functionality

Applications

• General purpose digital circuit timing
• Embedded system clock sources
• Consumer electronics timing references

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 to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling. The choice is driven by the need for a compact surface-mount form factor suitable for space-constrained designs. Consider the specific 1.1386 MHz frequency requirement as a primary selection criterion over generic alternatives.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronic. The series offers various frequencies within a standardized small outline package. The 'PD' suffix typically indicates a specific packaging or handling variant, while the base model defines the electrical characteristics and physical dimensions.

Replacement Considerations

Direct substitutes must match the 1.1386 MHz frequency, 1.8V supply, and LVCMOS output. Verify pinout compatibility for the 4-SMD no-lead package. Cross-reference with other Mercury 18QHTF21 variants if frequency adjustments are permissible.