18QHTF21-49.160-OE

Overview

The 18QHTF21-49.160-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 49.16 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 2.0 x 1.6 mm, suitable for surface-mount assembly in space-constrained electronic designs.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable/disable functionality for power management
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• General-purpose timing circuits requiring 49.16 MHz reference
• Embedded systems utilizing 1.8V logic levels
• Portable electronics 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 footprint matches your PCB layout guidelines. Check for any specific handling instructions regarding electrostatic discharge during installation.

Selection Notes

Select this component when a precise 49.16 MHz clock signal is required for 1.8V logic interfaces. Consider the small 2.0x1.6 mm package size if board real estate is limited. Evaluate the need for active enable/disable controls versus always-on operation. Compare performance metrics such as phase noise and stability against other oscillators in the same series if stricter timing specifications are necessary.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 4-SMD form factor. The series typically supports LVCMOS outputs and includes enable pins for power efficiency. Similar parts in this family may differ only in operating frequency or supply voltage, maintaining consistent physical dimensions and pin configurations for easy interchangeability in design.

Replacement Considerations

Direct substitutes include other 49.16 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and thermal characteristics when cross-referencing with competitors. Ensure the replacement maintains the same enable/disable logic polarity and output drive strength.