QTM750-1.8432MBE-T

Overview

The QTM750-1.8432MBE-T is a surface-mount CMOS oscillator manufactured by QST, operating at a frequency of 1.8432 MHz. It functions with a supply voltage of 3.3V and features an enable/disable control pin for power management. The device exhibits a frequency stability of ±50ppm across an operating temperature range of -40°C to +85°C. Maximum supply current is specified at 10mA. The component utilizes a 4-SMD, no-lead package with body dimensions of 7.0mm x 5.0mm x 1.3mm.

Feature Summary

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

Applications

• General timing circuits
• Embedded systems clocking
• Consumer electronics

Procurement Notes

Verify the manufacturer designation carefully, as the model number appears in listings associated with both TXC Corporation and QST. Confirm the specific datasheet corresponds to the QST variant to ensure accurate electrical parameters and pinout definitions. Cross-reference the ordering suffixes to confirm the exact package style and tolerance specifications required for your design.

Selection Notes

Select this component when a low-profile 7.0x5.0mm footprint is required for 1.8432 MHz applications. Ensure the system design supports 3.3V logic levels and accommodates the 10mA maximum current draw. Verify that the ±50ppm stability meets the timing requirements of the target application within the -40°C to +85°C industrial temperature range.

Part Context

This oscillator belongs to the QTM750 series, which offers various standard frequencies in a compact SMD package. The series provides options for different supply voltages and temperature ranges. The 1.8432 MHz variant is commonly used in telecommunications and audio processing applications requiring precise clock synchronization.

Replacement Considerations

Direct substitutes include other QTM750 series variants with compatible footprints and electrical characteristics. Check for equivalent parts from manufacturers such as TXC or Abracon that offer similar 7.0x5.0mm packages and 3.3V operation. Ensure any replacement maintains the same enable/disable functionality and frequency stability.