Overview
The MMBTA42LT1 is a small-signal NPN bipolar junction transistor (BJT) packaged in a SOT-23 (TO-236) case. It is widely used in various electronic circuits due to its high voltage and current handling capabilities. Although it is not exclusively produced by Infineon Technologies, it is available from several manufacturers, including ON Semiconductor.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 300 | Vdc |
| Collector-Base Voltage | VCBO | 300 | Vdc |
| Emitter-Base Voltage | VEBO | 6.0 | Vdc |
| Collector Current | IC | 0.5 | A |
| Base Current | IB | 50 | mA |
| DC Current Gain (hFE) | hFE | 25-40 | - |
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.5 | Vdc |
| Base-Emitter Saturation Voltage | VBE(sat) | 0.9 | Vdc |
| Current-Gain Bandwidth Product (fT) | fT | 70 | MHz |
| Collector-Base Capacitance (Ccb) | Ccb | 3.0-4.0 | pF |
Key Features
- Pb-Free, Halogen Free/BFR Free, and RoHS Compliant
- High voltage handling: VCEO = 300 Vdc
- High current handling: IC = 0.5 A
- Small SOT-23 package suitable for surface mount applications
- AEC-Q101 qualified for automotive and other applications requiring unique site and control change requirements
- High DC current gain (hFE) of 25-40
Applications
The MMBTA42LT1 transistor is versatile and can be used in a variety of applications, including:
- Automotive systems: Due to its AEC-Q101 qualification, it is suitable for use in automotive electronics.
- General-purpose amplifiers and switches: Its high voltage and current handling make it suitable for various amplification and switching applications.
- Audio circuits: It can be used in audio amplifiers and other audio-related circuits.
- Power supplies: It can be used in power supply circuits due to its high voltage and current capabilities.
Q & A
- What is the maximum collector-emitter voltage of the MMBTA42LT1 transistor?
The maximum collector-emitter voltage (VCEO) is 300 Vdc. - What is the maximum collector current of the MMBTA42LT1 transistor?
The maximum collector current (IC) is 0.5 A. - What is the package type of the MMBTA42LT1 transistor?
The MMBTA42LT1 is packaged in a SOT-23 (TO-236) case. - Is the MMBTA42LT1 RoHS compliant?
Yes, the MMBTA42LT1 is Pb-Free, Halogen Free/BFR Free, and RoHS Compliant. - What is the DC current gain (hFE) of the MMBTA42LT1 transistor?
The DC current gain (hFE) is 25-40. - What are some common applications of the MMBTA42LT1 transistor?
It is commonly used in automotive systems, general-purpose amplifiers and switches, audio circuits, and power supplies. - Is the MMBTA42LT1 AEC-Q101 qualified?
Yes, the MMBTA42LT1 is AEC-Q101 qualified for automotive and other applications requiring unique site and control change requirements. - What is the collector-emitter saturation voltage (VCE(sat)) of the MMBTA42LT1 transistor?
The collector-emitter saturation voltage (VCE(sat)) is 0.5 Vdc. - What is the base-emitter saturation voltage (VBE(sat)) of the MMBTA42LT1 transistor?
The base-emitter saturation voltage (VBE(sat)) is 0.9 Vdc. - What is the current-gain bandwidth product (fT) of the MMBTA42LT1 transistor?
The current-gain bandwidth product (fT) is 70 MHz.
