18QHTF21-49.4733-OE

Overview

The 18QHTF21-49.4733-OE is a standard crystal oscillator (XO) from Mercury Electronic's QuikXO series, designed for fast delivery of custom frequencies. It operates at a nominal frequency of 49.4733 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and features an enable/disable control function. Housed in a compact 4-SMD no-lead package, it is engineered for surface-mount applications requiring precise timing signals in space-constrained electronic designs.

Feature Summary

• QuikXO series construction enabling rapid manufacturing turnaround for custom frequency requirements
• Integrated enable/disable functionality allowing dynamic power management and signal control
• LVCMOS output interface compatible with standard digital logic families
• Compact 4-SMD no-lead package optimized for automated surface-mount assembly processes

Applications

• High-speed data communication interfaces requiring stable clock references
• Embedded systems utilizing microcontrollers or DSPs needing precise timing sources
• Network equipment components demanding reliable frequency generation
• Consumer electronics devices with space-constrained PCB layouts

Procurement Notes

Verify the exact frequency tolerance and load capacitance specifications against your circuit design requirements before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB land pattern dimensions. Check lead-free status if environmental compliance is mandatory for your production line.

Selection Notes

Select this component when a custom frequency near 49.4733 MHz is required with faster availability than standard inventory parts. Consider the LVCMOS output swing compatibility with downstream logic inputs. Evaluate the enable pin utility for power-sensitive applications. Compare package dimensions against available board real estate to ensure mechanical fit within the assembly constraints.

Part Context

This part belongs to Mercury Electronic's QuikXO family, which specializes in quick-turnaround CMOS oscillators. The series bridges the gap between standard catalog items and fully custom solutions by offering built-to-order capabilities for specific frequencies while maintaining consistent performance characteristics across the product line.

Replacement Considerations

Direct substitutes include other 49.4733 MHz LVCMOS oscillators in 4-SMD packages from manufacturers like Epson, Nihon Dempa Kogyo, or SiTime. Verify equivalent supply voltage, current consumption, and phase noise specifications. Ensure the replacement maintains the same enable/disable functionality and physical footprint for drop-in compatibility.