18QHTF21-11.100-OE

Overview

The 18QHTF21-11.100-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 11.1 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This configuration supports surface-mount assembly processes suitable for space-constrained electronic designs.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Consumer electronics timing circuits
• Industrial control system clocks
• Embedded processor clock sources

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application environment before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions precisely to avoid soldering defects. Cross-reference the datasheet for any specific handling or storage conditions required for quartz components.

Selection Notes

Select this component when a precise 11.1 MHz reference signal is required for LVCMOS-compatible digital logic. The integrated enable pin allows for dynamic power management in battery-operated devices. Consider the small form factor for high-density board layouts. Ensure the system can provide a stable 1.8V supply rail to maintain frequency stability and output amplitude specifications.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequency options within a standardized 2.0x1.6mm package. These oscillators are designed to replace discrete crystal and resonator combinations, simplifying design and improving reliability. The OE suffix typically indicates the presence of an output enable feature.

Replacement Considerations

Direct replacements must match the 11.1 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as rise/fall times and current consumption. Check if the substitute part includes the same enable/disable functionality.