18QHTF21-4.800-PD

Oscillators Overview

The 18QHTF21-4.800-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.8 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, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports low-voltage operation with 1.8V supply
• Includes standby mode for power management
• Provides LVCMOS digital output signals

Oscillators Applications

• Battery-powered portable electronic devices
• Low-power embedded systems
• Consumer electronics requiring precise timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and electrical connection during assembly.

Oscillators Selection Notes

Select this component when a low-profile, surface-mount oscillator is required for 1.8V logic interfaces. Consider the 4.8 MHz frequency for applications needing a specific clock source without additional dividers. Evaluate the standby feature if power efficiency is critical for the end product. Compare package dimensions against available board space constraints.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic, which focuses on small-footprint oscillators. The series typically offers various frequencies and voltage options. The '-PD' suffix indicates the inclusion of a power-down capability, distinguishing it from continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 4.8 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Consult manufacturer cross-reference lists for approved alternatives.