18QHTF21-4.9995-PD

Oscillators Overview

The 18QHTF21-4.9995-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 4.9995 MHz and requires a supply voltage of 1.8V. The device utilizes LVCMOS output logic and supports a standby or power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby functionality for power management
• Utilizes standard LVCMOS output interface

Oscillators Applications

• General-purpose timing circuits
• Embedded systems requiring precise clock signals
• Portable electronic devices due to low voltage requirements

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Confirm that the 4-SMD no-lead package footprint matches your PCB layout constraints to ensure proper assembly and reliability.

Oscillators Selection Notes

Select this component when a 4.9995 MHz clock signal is required with a 1.8V supply constraint. Consider the small 2.0x1.6mm form factor for space-constrained designs. Verify compatibility with LVCMOS logic levels in the target system. Evaluate the need for standby modes if power conservation is a priority in the application environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies tailored for digital timing applications. The 'PD' suffix typically indicates the inclusion of a power-down feature, allowing the oscillator to be disabled to reduce current consumption when not in use.

Oscillators FAQ

What is the output logic type for this oscillator?

The 18QHTF21-4.9995-PD uses LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor) output logic.

Does this component support power saving modes?

Yes, the device includes a standby or power-down function to minimize power consumption when the oscillator is not actively needed.