QTM216-19.200MDE-T

Overview

The QTM216-19.200MDE-T is a CMOS standard oscillator manufactured by QST, housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm and a height of 0.75mm. It operates at a fixed frequency of 19.2 MHz with a supply voltage range supporting 1.8V, 2.5V, and 3.3V. The device features a maximum supply current of 5mA and offers frequency stability options of ±25ppm or ±50ppm. It supports an enable/disable function via the control pin and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Ultra-compact 2016 SMD ceramic package design for space-constrained applications
• Integrated enable/disable control functionality for power management
• Low electromagnetic interference (EMI) CMOS output characteristics
• Wide supply voltage compatibility across 1.8V, 2.5V, and 3.3V levels

Applications

• Smartwatch and wearable device clock sources
• System-in-Package (SiP) modules requiring minimal footprint
• Bluetooth Low Energy (BLE) communication interfaces
• Industrial equipment requiring stable timing signals

Procurement Notes

Verify that the specific suffix 'D' corresponds to the required frequency stability tolerance, as variations exist within the QTM216 series. Confirm the operating temperature grade matches the application environment, noting that some variants support extended ranges up to 125°C while this specific model is rated for industrial temperatures. Ensure the ordering suffix aligns with the desired packaging format and voltage configuration to avoid integration issues during production.

Selection Notes

Select this component when strict board space limitations require a 2016 footprint combined with low power consumption under 5mA. It is suitable for designs needing flexible voltage operation without external level shifting. Consider the ±50ppm stability if cost is a primary driver, or verify if tighter tolerances are necessary for high-speed data transmission interfaces. Evaluate the enable pin requirement against system power sequencing needs.

Part Context

This part belongs to the QTM216 family of surface-mount oscillators designed for portable electronics. The series is characterized by its small physical size and low current draw, making it distinct from larger through-hole or standard SMD oscillators. It serves as a direct replacement for legacy crystal units in modern miniaturized consumer and industrial devices.

Replacement Considerations

Direct substitutes include other 2016 footprint CMOS oscillators from manufacturers such as TXC or Epson, provided they match the 19.2 MHz frequency and 1.8V-3.3V supply range. Verify pinout compatibility and thermal specifications before swapping. Note that some generic replacements may lack the specific enable/disable control feature present in the QTM216 series.