18QHTF21-19.000-OE

Oscillators Overview

The 18QHTF21-19.000-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.000 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at 1.8V supply voltage. It features an enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, no lead package with a footprint of 2.0x1.6 mm, suitable for surface-mount assembly.

Oscillators Feature Summary

• Generates precise clock signals using LVCMOS output interface
• Supports active low or high enable/disable functionality for power optimization
• Operates on a single 1.8V power supply rail
• Utilizes a small form-factor 4-pin SMD package

Oscillators Applications

• Timing and clock signal generation in embedded systems
• Data communication interfaces requiring stable frequency references
• Consumer electronics devices with space constraints
• Industrial control equipment needing reliable oscillation

Oscillators Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm voltage and package variations. Ensure compatibility with target board layout dimensions. Check for RoHS compliance status if required by project specifications. Confirm availability through authorized distributors to avoid counterfeit components.

Oscillators Selection Notes

Select this model when a 19 MHz reference is required with low voltage operation. Consider the 1.8V supply constraint during power budget analysis. Evaluate the enable/disable feature necessity for system power management strategies. Compare physical dimensions against available PCB real estate.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series offers various frequencies and voltage options within a standardized small outline package. Mercury has been a pioneer in the crystal industry since 1973, providing reliable timing solutions.

Oscillators Replacement Considerations

Direct substitutes may include other 19 MHz LVCMOS oscillators in 2.0x1.6mm packages from different manufacturers. Verify electrical parameters such as load capacitance and drive strength before substitution. Ensure pinout compatibility to avoid redesign efforts.