18QHTF21-4.995-OE

Oscillators Overview

The 18QHTF21-4.995-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.995 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable and disable control functionality
• Designed for low-voltage operation at 1.8V

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 4.995 MHz
• Embedded devices utilizing LVCMOS interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Confirm that the 1.8V supply requirement aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 4.995 MHz timing source is required for low-voltage applications. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small 2.0x1.6 mm package size for space-constrained designs. Verify availability of the enable/disable feature if power management is a priority in the application.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 4-SMD package. The series supports LVCMOS outputs and 1.8V operation, providing a consistent form factor for different timing requirements across multiple product lines.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical package and electrical characteristics but different frequencies, such as 18QHTF21-6.300-OE or 18QHTF21-9.465-OE, provided the frequency difference is acceptable for the application.