18QHTF21-15.998976-PD

Oscillators Overview

The 18QHTF21-15.998976-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 15.998976 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm by 1.6mm. The component supports an operating temperature range suitable for industrial applications.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for efficient power management
• Includes a standby or power-down mode to reduce current consumption when inactive
• Delivers stable clock signals via LVCMOS output interface
• Utilizes a small form factor surface-mount package for space-constrained designs

Oscillators Applications

• Embedded systems requiring precise timing references
• Consumer electronics with limited power budgets
• Industrial control modules needing reliable clock sources
• Communication devices utilizing standard frequency protocols

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the specified operating limits. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure joint integrity. Validate that the LVCMOS output levels are compatible with the receiving logic inputs.

Oscillators Selection Notes

Choose this oscillator when a fixed frequency near 16 MHz is required with minimal power usage. The 1.8V specification makes it suitable for modern low-power digital circuits. Consider the physical size constraints as the 2.0x1.6mm package is quite small. Verify that the LVCMOS output swing meets the noise margins of your downstream components. Ensure the operating temperature range covers the environmental conditions of the final application.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile crystal oscillators. The series typically offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down feature. Mercury Electronics is a established manufacturer of frequency control products, providing solutions for diverse electronic applications.

Oscillators Replacement Considerations

Direct substitutes may include other 16MHz LVCMOS oscillators in 2.0x1.6mm packages from different manufacturers. Ensure replacement parts match the 1.8V supply requirement and LVCMOS output type. Verify that the pinout configuration is identical to avoid PCB redesign. Check if the replacement offers similar standby current characteristics. Confirm that the frequency accuracy and stability meet the original system specifications.