QTM216J-4.000MDJ-T

Overview

The QTM216J-4.000MDJ-T is a standard CMOS quartz oscillator manufactured by QST, designed for surface-mount applications in a compact 4-SMD, No Lead package measuring 2.0x1.6mm. It operates at a fixed frequency of 4 MHz with a supply voltage of 1.8V and maximum current consumption of 22mA. The device features ±50ppm frequency stability and supports an operating temperature range from -40°C to 105°C. This component provides reliable clock signals for digital circuits requiring low jitter performance within industrial temperature constraints.

Feature Summary

• Integrated CMOS output stage delivering standard clock signals
• Compact 2.0x1.6mm SMD ceramic package for space-constrained designs
• Industrial-grade thermal stability across wide temperature ranges

Applications

• Digital signal processing systems
• Microcontroller clock sources
• Communication interface timing

Procurement Notes

Verify the specific suffix 'DJ' against the manufacturer's official datasheet to confirm the exact frequency tolerance and temperature rating specifications. Ensure the selected variant matches the required 1.8V supply voltage and 4MHz output frequency for the target application design.

Selection Notes

Select this component when a 4MHz clock source is required with strict size limitations due to its 2.0x1.6mm footprint. Consider the 1.8V supply requirement and ±50ppm stability for compatibility with the host system's power rails and timing accuracy needs.

Part Context

This part belongs to the QTM216 series of low-jitter CMOS oscillators. The series offers various frequency options and supply voltages, utilizing a standardized 4-pin SMD package suitable for automated surface-mount assembly processes in consumer and industrial electronics.

Replacement Considerations

Direct substitutes include other 4MHz, 1.8V, 4-SMD CMOS oscillators from manufacturers such as TXC or Epson, provided pinout and electrical parameters match exactly.