FMMT458TA

The FMMT458TA 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 cylindrical plastic package that allows for easy handling and mounting on printed circuit boards (PCBs).
• Maximum Collector-Emitter Voltage (Vce): The FMMT458TA can handle a maximum Vce of around 60V, making it suitable for applications that require higher voltage operation.
• Maximum Collector Current (Ic): It can support a collector current of up to 800mA, allowing it to drive moderate loads effectively.
• 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 FMMT458TA has a transition frequency of approximately 150 MHz, indicating its capability for high-frequency applications.

Electrical Characteristics:

• Collector-Base Breakdown Voltage (BVCBO): This parameter is usually around 60V, ensuring reliable operation under high-voltage conditions.
• Emitter-Base Breakdown Voltage (BVEBO): Typically rated at about 5V, which is important for protecting the transistor from reverse bias conditions.
• Thermal Resistance: The thermal resistance junction-to-ambient is designed to ensure that the transistor can operate efficiently without overheating.

Applications:

The FMMT458TA 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 Applications: Can be used in relay drivers, motor drivers, and other switching circuits.
• General Purpose: Its versatility makes it suitable for various electronic circuits, including consumer electronics, automotive applications, and industrial controls.

Additional Information:

• Operating Temperature Range: The transistor is designed to operate within a specified temperature range, typically from -55°C to +150°C, ensuring reliability in various environmental conditions.
• Lead Configuration: The TO-92 package typically has three leads: Collector (C), Base (B), and Emitter (E), which are arranged in a specific order for easy integration into circuits.

Overall, the FMMT458TA from Diodes Incorporated is a robust and versatile NPN transistor that meets the needs of many electronic applications, providing reliable performance in both switching and amplification roles.