18QHTF21-4.900-OE

Oscillators Overview

The 18QHTF21-4.900-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 4.9 MHz and utilizes an LVCMOS output interface. The device supports a supply voltage range that includes 1.8V operation and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose timing reference circuits
• Embedded systems requiring low-power clock sources
• Consumer electronics with space-constrained designs

Oscillators Procurement Notes

Verify the specific frequency tolerance and stability requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the LVCMOS output swing is compatible with the receiving logic inputs to guarantee signal integrity and proper operation within the intended application environment.

Oscillators Selection Notes

Select this component when a fixed 4.9 MHz clock source is required with minimal form factor. The enable pin allows for dynamic power control, making it suitable for battery-operated devices. Compare performance against other Mercury models in the 18QHTF21 series if different frequencies or voltage levels are needed for your specific circuit architecture.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz crystals and oscillators. The series offers various frequency options within a standardized small outline package. Mercury has decades of experience in frequency control products, providing reliable timing solutions for global electronic markets.

Oscillators Replacement Considerations

Direct replacements must match the 4.9 MHz frequency, LVCMOS output type, and 4-SMD package dimensions. Verify supply voltage compatibility and enable pin functionality. Cross-reference with other Mercury part numbers in the same series for alternative frequencies if the exact 4.9 MHz specification is not critical.