onsemi

MMBT4403LT3G

MMBT4403LT3G Description

The MMBT4403LT3G from onsemi is a high-performance PNP bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. Packaged in a compact SOT-23-3 surface-mount form factor, it offers a 40V collector-emitter breakdown voltage (V_CEO) and a 600mA continuous collector current (I_C), making it suitable for low-to-medium power circuits. With a transition frequency (f_T) of 200MHz, it ensures efficient high-frequency operation. The device features a low V_CE(sat) of 750mV @ 50mA/500mA, minimizing power loss in switching applications. Compliant with ROHS3 and REACH standards, it is ideal for environmentally conscious designs.

MMBT4403LT3G Features

• High Current Gain (h_FE): Minimum 100 @ 150mA, 2V, ensuring reliable signal amplification.
• Low Saturation Voltage: 750mV @ 500mA, enhancing efficiency in switching applications.
• Compact & Reliable: SOT-23-3 package with MSL1 (Unlimited) moisture sensitivity, suitable for automated assembly.
• Broad Voltage Range: 40V V_CEO supports diverse circuit requirements.
• High Transition Frequency: 200MHz f_T enables stable high-frequency performance.
• RoHS3 & REACH Compliant: Meets stringent environmental regulations.

MMBT4403LT3G Applications

• Switching Circuits: Ideal for load switching, relay drivers, and power management due to low V_CE(sat).
• Amplification: Suitable for audio preamps, signal conditioning, and sensor interfaces with high h_FE.
• Portable Electronics: Used in battery-powered devices thanks to low power dissipation (300mW max).
• Automotive & Industrial Systems: Robust performance in motor control, LED drivers, and DC-DC converters.
• High-Speed Switching: 200MHz f_T supports RF and fast digital switching applications.

Conclusion of MMBT4403LT3G

The MMBT4403LT3G is a versatile PNP BJT combining high current gain, low saturation voltage, and compact packaging, making it an excellent choice for switching, amplification, and high-frequency applications. Its 40V rating and 600mA current capability provide flexibility across consumer, industrial, and automotive designs. With onsemi's reliability and compliance with RoHS3/REACH, this transistor is a dependable solution for modern electronic systems requiring efficiency and performance in a small footprint.