QT216S-38.400MEIV-T

Overview

The QT216S-38.400MEIV-T is a surface-mount crystal oscillator manufactured by QST, designed for high-frequency timing applications. It operates at a nominal frequency of 38.4 MHz with a load capacitance of 8 pF. The device features a compact 4-SMD, no-lead package measuring 2.00mm x 1.60mm in footprint and 0.50mm in maximum seated height. Frequency stability is specified at ±10 ppm at 25°C and ±20 ppm over the temperature range of -40°C to +85°C, ensuring reliable performance in demanding electronic environments.

Feature Summary

• Compact 2.0x1.6 mm surface-mount package suitable for space-constrained designs
• High frequency stability with ±10 ppm tolerance at room temperature
• Wide operating temperature range from -40°C to +85°C for industrial reliability

Applications

• Microcontroller unit (MCU) clock sources
• Human-machine interface (HMI) systems
• Display driver timing circuits

Procurement Notes

Verify the specific suffix IV-T against official QST documentation to confirm pinout and electrical characteristics. Ensure compatibility with reflow soldering profiles defined in the datasheet. Confirm that the 8 pF load capacitance matches the target circuit design requirements before procurement.

Selection Notes

Select this component when a precise 38.4 MHz reference is required in a minimal footprint. The ±10 ppm stability at 25°C makes it suitable for applications requiring tight frequency control. Consider the -40°C to +85°C range if the environment experiences significant thermal variation compared to standard commercial grades.

Part Context

This part belongs to the QT216S series of quartz crystals and oscillators from QST. The series is characterized by small form factors and stable frequency generation capabilities. Similar models in the lineup offer different frequencies and stability ratings, such as 32 MHz or 40 MHz variants, allowing designers to choose based on specific system clock needs.

Replacement Considerations

Direct substitutes include other 38.4 MHz SMD crystals with identical 2.0x1.6 mm dimensions and ±10 ppm/±20 ppm stability specifications. Verify that alternative manufacturers support the same load capacitance and operating temperature range to ensure functional equivalence.