QTM750-18.432MBB-T

Overview

The QTM750-18.432MBB-T is a surface-mount crystal oscillator manufactured by QST, operating at a nominal frequency of 18.432 MHz. It utilizes CMOS output logic and requires a 3.3V supply voltage with a maximum current consumption of 10mA. The device features a ±50ppm frequency stability and supports an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 7mm x 5mm x 1.42mm. The component is rated for an operating temperature range of -10°C to 70°C.

Feature Summary

• CMOS output signal generation
• Enable/Disable control functionality
• Surface mount construction

Applications

• General electronic circuits requiring precise timing
• Embedded systems clock sources
• Communication equipment signal processing

Procurement Notes

Verify the specific suffix 'BB' against official QST documentation to confirm exact specifications, as suffixes often denote variations in tolerance, temperature range, or packaging. Ensure compatibility with 3.3V logic levels and check lead times through authorized distributors. Confirm that the -10°C to 70°C operating range meets your application's environmental requirements before ordering.

Selection Notes

Select this component when a standard 18.432 MHz CMOS clock source is required in a small form factor. Consider the ±50ppm stability and industrial temperature limits relative to system needs. Compare against other QTM750 variants if different frequencies, tighter stabilities, or extended temperature ranges are necessary for the design.

Part Context

This part belongs to the QTM750 series of surface-mount crystal oscillators from QST. The series offers various frequencies and packages, typically featuring CMOS outputs and low power consumption. The 18.432 MHz variant is commonly used in digital systems where this specific frequency aids in baud rate generation or video timing applications.

Replacement Considerations

Direct replacements may include other QST models within the QTM750 series with identical pinout and electrical characteristics. Cross-reference with manufacturers like TXC or Abracon offering similar 4-SMD CMOS oscillators, ensuring matching frequency, voltage, and package dimensions.