QTM216J-8.000MDJ-T

Overview

The QTM216J-8.000MDJ-T is a surface-mount CMOS oscillator manufactured by QST, operating at a frequency of 8 MHz. It features a standard XO output type with a frequency stability of ±50 ppm and supports a supply voltage of 1.8 V. The device includes an enable/disable control function and is housed in a compact 4-SMD, no lead package measuring 2.0 mm x 1.6 mm. It operates within a temperature range of -40°C to 105°C and draws a maximum supply current of 10 mA.

Feature Summary

• Integrated enable and disable functionality for power management control
• Compact 2.0x1.6 mm SMD footprint suitable for space-constrained designs
• CMOS output interface compatible with standard digital logic

Applications

• Embedded systems requiring precise clock timing
• Portable consumer electronics with limited board space
• Industrial control modules operating in extended temperature ranges

Procurement Notes

Verify the specific suffix 'MDJ' against official QST documentation to confirm the exact voltage and temperature grade, as suffix variations often denote critical electrical differences. Ensure the selected packaging option matches the production line requirements. Cross-reference the datasheet revision date to guarantee compatibility with current design specifications.

Selection Notes

Select this component when a low-profile 1.8V oscillator is required for 8 MHz applications. Consider the ±50 ppm stability requirement against system tolerance limits. Evaluate the 4-SMD package dimensions against PCB layout constraints. Confirm that the enable pin logic aligns with the host controller's GPIO capabilities for proper power sequencing.

Part Context

This part belongs to the QTM216 series of low-profile oscillators from QST. The series is designed for applications demanding small form factors and reliable performance. The J variant typically indicates specific packaging or material characteristics within the product line, distinguishing it from other series members like the E or B variants.

Replacement Considerations

Direct substitutes include other 8 MHz 1.8V CMOS oscillators in 2016 packages from manufacturers such as TXC or Epson. Verify pinout compatibility and electrical parameters before substitution. Alternative QST parts like the QTM216E series may offer different voltage options but require pin and parameter validation.