QT216S-44.000MAAV-T

Overview

The QT216S-44.000MAAV-T is a surface-mount crystal oscillator manufactured by QST, designed for precise frequency generation in electronic circuits. It operates at a nominal frequency of 44 MHz with a load capacitance of 8 pF and an equivalent series resistance (ESR) of 50 Ohms. The component features a tolerance of ±30 ppm to ensure stable timing performance. It is housed in a compact 4-SMD, no-lead package, facilitating automated assembly and integration into space-constrained printed circuit boards.

Feature Summary

• Provides stable 44 MHz oscillation with ±30 ppm frequency tolerance
• Utilizes 8 pF load capacitance for standard circuit compatibility
• Features low ESR of 50 Ohms for efficient power operation
• Designed in a 4-SMD no-lead package for surface mount applications

Applications

• Clock signal generation for microcontrollers and processors
• Timing reference for communication interfaces
• Frequency synthesis in wireless modules
• Precision timing in embedded systems

Procurement Notes

Verify the specific ordering suffix MAAV-T against the manufacturer's current datasheet to confirm pinout and packaging details. Ensure the load capacitance requirement matches the target circuit design. Check for RoHS compliance status if required by project specifications. Confirm availability through authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a 44 MHz clock source with moderate stability is required. The 8 pF load capacitance suits standard MCU inputs. Consider the ±30 ppm tolerance against system timing requirements. The SMD package is suitable for high-volume manufacturing. Evaluate thermal performance if operating in extreme environments.

Part Context

This part belongs to QST's line of surface-mount crystals. It serves as a fundamental timing element in digital electronics. The 44 MHz frequency is less common than standard values like 32.768 kHz or 8/16 MHz, often used in specific audio or custom clocking applications. The no-lead design supports modern reflow soldering processes.

Replacement Considerations

Direct substitutes must match the 44 MHz frequency, 8 pF load capacitance, 50 Ohm ESR, and 4-SMD footprint. Verify that alternative manufacturers offer the same ±30 ppm tolerance. Ensure the replacement part has identical electrical characteristics and mechanical dimensions for seamless board integration.