FMMT619TA

The FMMT619TA is a high-performance NPN bipolar junction transistor (BJT) manufactured by Diodes Incorporated. It is designed for a variety of applications, including general-purpose switching and amplification.

Key Features:

• Type: NPN Transistor
• Package: Typically available in a TO-92 package, which is a standard plastic package that is easy to handle and mount on PCBs.
• Maximum Collector-Emitter Voltage (Vce): The FMMT619TA can handle a maximum Vce of around 40V, making it suitable for various applications where moderate voltage levels are present.
• Maximum Collector Current (Ic): It can support a collector current of up to 800mA, allowing it to drive loads effectively in switching applications.
• DC Current Gain (hFE): The transistor exhibits a high DC current gain, typically in the range of 100 to 300, which enhances its efficiency in amplification applications.
• Transition Frequency (fT): The FMMT619TA has a transition frequency of approximately 150 MHz, indicating its capability for high-speed switching applications.

Electrical Characteristics:

• Collector-Base Breakdown Voltage (Vcb): The transistor has a Vcb rating of around 50V, providing additional robustness in circuit designs.
• Emitter-Base Breakdown Voltage (Veb): The Veb is typically rated at 5V, which is important for ensuring reliable operation in various configurations.
• Thermal Resistance: The thermal resistance is designed to manage heat dissipation effectively, allowing the transistor to operate within safe temperature limits.

Applications:

The FMMT619TA is suitable for a wide range of applications, including:

• Signal Amplification: Ideal for audio and RF amplification due to its high gain and frequency response.
• Switching Circuits: Can be used in relay drivers, motor drivers, and other switching applications where moderate current and voltage levels are involved.
• General Purpose: Its versatility makes it suitable for various electronic circuits, including consumer electronics, automotive applications, and industrial controls.

Conclusion:

The FMMT619TA from Diodes Incorporated is a reliable and efficient NPN transistor that offers a good balance of performance characteristics for both switching and amplification tasks. Its robust design and versatility make it a popular choice among engineers and designers in the electronics industry.