QTM216-12.000MDE-T

Overview

The QTM216-12.000MDE-T is a surface-mount CMOS quartz oscillator manufactured by QST, housed in a compact 4-SMD, no-lead package measuring 2.0mm x 1.6mm with a height of 0.75mm. It operates at a nominal frequency of 12MHz with a total frequency stability of ±50ppm across the industrial temperature range of -40°C to +85°C. The device supports supply voltages of 1.8V, 2.5V, and 3.3V, featuring an enable/disable function via Pin 1 control. Maximum supply current is specified at 10mA, ensuring low power consumption suitable for portable applications.

Feature Summary

• Compact 2016 SMD ceramic seam-sealed package designed for space-constrained SiP and wearable structures
• Integrated enable/disable control on Pin 1 for active power management
• Wide voltage compatibility supporting 1.8V, 2.5V, and 3.3V operation
• CMOS output optimized for direct interface with digital logic without external level shifting

Applications

• Smartwatch and wearable device clock sources
• System-in-Package (SiP) modules requiring minimal footprint
• Bluetooth Low Energy (BLE) communication interfaces
• Portable consumer electronics with strict power constraints

Procurement Notes

Verify the specific suffix 'DE' against the manufacturer datasheet to confirm the exact frequency tolerance, load capacitance, and enable pin configuration. Ensure the selected variant matches the required operating temperature range (-40°C to +85°C) and supply voltage profile for the target application. Cross-reference the package dimensions with PCB footprints to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when a 2016 footprint is mandatory and low power consumption is critical. The ±50ppm stability suits general-purpose timing rather than high-precision synchronization. Verify that the host system can tolerate the CMOS output swing levels. Consider the enable pin functionality if dynamic power saving is required during idle states in battery-operated devices.

Part Context

This part belongs to the QTM216 series of low-profile CMOS oscillators from QST. The series is engineered for modern miniaturized electronics, offering a balance between size reduction and electrical performance. It serves as a drop-in replacement for larger standard crystal oscillators where board real estate is limited.

Replacement Considerations

Direct substitutes include other 2016 CMOS oscillators with matching 12MHz frequency and ±50ppm stability. Verify pinout compatibility, particularly the enable function location, before swapping manufacturers. Ensure the replacement maintains the same supply voltage range and thermal specifications.