18QHTF21-1.2183-OE

Overview

The 18QHTF21-1.2183-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 1.2183 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range of -40°C to 85°C and maintains a frequency stability of ±50ppm.

Feature Summary

• LVCMOS output logic compatible with standard digital interfaces
• Integrated enable and disable control functionality
• Compact 4-SMD no-lead surface mount package design

Applications

• General purpose timing circuits requiring low power consumption
• Embedded systems utilizing 1.8V logic levels
• Portable electronic devices with space constraints

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 4-SMD package footprint matches your PCB layout specifications. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly and long-term performance.

Selection Notes

Select this component when a precise 1.2183 MHz clock signal is required for 1.8V logic systems. Consider the ±50ppm stability for applications where moderate frequency accuracy is sufficient. The enable/disable feature makes it suitable for battery-powered designs requiring power saving modes. Evaluate the small form factor against available board space constraints.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The 'OE' suffix typically denotes specific packaging or tape-and-reel options. These oscillators are designed for general timing applications in consumer electronics and industrial equipment.

Replacement Considerations

Direct replacements must match the 1.2183 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics such as current consumption and start-up time. Cross-reference with other manufacturers offering similar SMD XO components.