QT216S-19.200MAAE-T

Overview

The QT216S-19.200MAAE-T is a surface-mount quartz crystal resonator manufactured by QST, designed for precision timing applications in electronic circuits. It operates at a fundamental frequency of 19.2 MHz with a frequency stability and tolerance of ±30 ppm. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 90 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 2.0 mm x 1.6 mm x 0.5 mm. The device supports base mode operation and functions within an operating temperature range of -20°C to +70°C.

Feature Summary

• Provides stable oscillation at 19.2 MHz with ±30 ppm frequency tolerance for precise clock generation.
• Utilizes a compact 4-SMD no-lead surface mount package suitable for automated assembly processes.
• Operates reliably across a standard commercial temperature range of -20°C to +70°C.

Applications

• Embedded communication systems requiring stable clock signals
• Microcontroller unit (MCU) clock sources
• Human-machine interface (HMI) display projects

Procurement Notes

Verify the specific package type and electrical parameters against the official QST datasheet before integration. Confirm that the 4-SMD footprint matches the target PCB layout design. Ensure the operating temperature range meets the environmental requirements of the final application. Cross-reference the part number to avoid confusion with similar variants from other manufacturers or different series within the same brand.

Selection Notes

Select this component when a 19.2 MHz reference frequency is required for digital logic or communication interfaces. The ±30 ppm stability is adequate for most standard serial communication protocols. Consider the 90 Ohm ESR value to ensure compatibility with the oscillator circuit's drive level specifications. The small form factor makes it suitable for space-constrained portable or industrial devices.

Part Context

This crystal belongs to the QT216S series of surface-mount resonators from QST. These components are engineered for general-purpose timing applications where moderate stability is sufficient. The series offers various frequency options and package sizes to accommodate different design constraints. This specific model represents a common frequency point used in embedded systems and peripheral interfaces.

Replacement Considerations

Direct substitutes include the TXC CORPORATION 7A-19.200MAAE-T, which shares identical electrical parameters and frequency. Other compatible alternatives may include crystals from manufacturers offering 19.2 MHz SMD resonators with matching 12 pF load capacitance and ±30 ppm tolerance. Verify pinout and mechanical dimensions before substitution.