QT216S-40.000METJ-T

Overview

The QT216S-40.000METJ-T is a 40 MHz fundamental AT-cut crystal resonator manufactured by QST Products, LLC. It features a frequency stability of ±10 ppm and operates within a temperature range of -30°C to +85°C. The component utilizes a 4-SMD, No Lead package with dimensions of 2.0 x 1.6 x 0.5 mm. Key electrical specifications include a load capacitance of 10 pF and an equivalent series resistance (ESR) of 50 Ohms. This surface-mount device is designed for precise timing applications requiring stable oscillation frequencies.

Feature Summary

• Provides high frequency stability of ±10 ppm across the operating temperature range.
• Utilizes a compact 4-SMD no-lead surface mount package for automated assembly.
• Features low equivalent series resistance of 50 Ohms for efficient circuit integration.

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific suffix METJ-T against official QST documentation to confirm the exact load capacitance and tolerance parameters. Ensure the ordering part number matches the required frequency stability and temperature range specifications for your design. Cross-reference the package dimensions and pin configuration with your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a 40 MHz reference with ±10 ppm stability is required in a small SMD form factor. Consider the 10 pF load capacitance requirement for oscillator circuit design. Evaluate the -30°C to +85°C operating range against environmental conditions. Compare ESR values with other available options to ensure compatibility with the driving circuit's power constraints.

Part Context

This model belongs to the QT216S series of surface-mount crystals from QST Products. The series offers various frequency options and package configurations. The QT216S line is characterized by its small footprint and reliability for consumer electronics and industrial applications. Specific variants differ primarily in frequency, load capacitance, and tolerance ratings.

Replacement Considerations

Direct substitutes must match the 40 MHz frequency, 10 pF load capacitance, 50 Ohm ESR, and 4-SMD package. Verify that alternative manufacturers offer identical ±10 ppm stability and -30°C to +85°C temperature ranges. Check mechanical compatibility including height and pad layout. Confirm electrical characteristics align with the host oscillator circuit design.

FAQ

What is the load capacitance for the QT216S-40.000METJ-T?

The load capacitance is 10 pF.

What is the equivalent series resistance (ESR)?

The ESR is 50 Ohms.