QTM532-40.000MEH-T

Overview

The QTM532-40.000MEH-T is a standard clock oscillator manufactured by TXC Corporation under the QST brand. It operates at a frequency of 40.000 MHz with a CMOS output signal. The device supports supply voltages ranging from 1.8V to 3.3V and features a tolerance of +/-50ppm. It functions within an operating temperature range of -40°C to +85°C. The component is housed in a surface-mount package measuring 5.0mm x 3.2mm x 1.2mm.

Feature Summary

• CMOS output signal for digital logic compatibility
• Wide supply voltage support from 1.8V to 3.3V
• Compact 5.0mm x 3.2mm surface-mount footprint

Applications

• General purpose timing circuits
• Embedded system clock generation
• Consumer electronics timing references

Procurement Notes

Verify the specific supply voltage suffix (e.g., H for 3.3V) against design requirements, as the QTM532 series offers multiple voltage options. Confirm the operating temperature grade matches environmental conditions. Ensure the CMOS output type aligns with downstream logic levels. Check for RoHS compliance status if required by project specifications.

Selection Notes

Select this part when a compact, low-cost CMOS oscillator is needed for 40MHz applications. Consider the +/-50ppm tolerance for general timing needs rather than high-precision synchronization. Evaluate the 5x3.2mm package size against board space constraints. Compare against other QTM532 variants if different voltage or temperature ratings are necessary.

Part Context

This component belongs to the QTM532 series of quartz crystal oscillators. The series provides various frequencies and output types including CMOS and LVDS. The QTM532 line is designed for cost-sensitive applications requiring reliable timing signals in small form factors. It serves as a direct replacement for older through-hole crystals in modern surface-mount designs.

Replacement Considerations

Direct replacements include other QTM532-40.000 variants with matching voltage and output specifications. Verify pinout compatibility when substituting with similar 5x3.2mm oscillators from other manufacturers.