18QHTF21-28.300-PD

Oscillators Overview

The 18QHTF21-28.300-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 28.3 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a power-down feature for standby mode control. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface
• Power-down capability
• Compact surface-mount form factor

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a low-voltage, small-footprint clock source is required for digital applications. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the power-down feature if energy efficiency during idle periods is a design priority. Verify thermal performance within the specified operating temperature range for your specific environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltages, all sharing the same 2.0x1.6 mm package. This specific model provides a 28.3 MHz output, fitting into the broader category of standard XO devices used for precise timing in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes include other 28.3 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Check datasheets for pin compatibility and electrical parameter equivalence. Cross-reference with similar Mercury models or industry-standard replacements ensuring identical frequency and output logic.