Overview
The MMBT3904WT1H is a general-purpose NPN small-signal transistor manufactured by onsemi. It is designed for low power surface mount applications and is housed in the SOT-323/SC-70 package. This transistor is part of a family that includes complementary PNP types, such as the MMBT3906WT1H. The device is lead-free, halogen-free, and fully RoHS compliant, making it suitable for a wide range of applications, including automotive and other environments requiring unique site and control change requirements.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 40 | Vdc |
| Collector-Base Voltage | VCBO | 60 | Vdc |
| Emitter-Base Voltage | VEBO | 6.0 | Vdc |
| Collector Current - Continuous | IC | 200 | mAdc |
| Junction and Storage Temperature | TJ, Tstg | -55 to +150 | °C |
| Current Gain (hFE) | hFE | 100 - 400 | |
| Output Capacitance (Cobo) | Cobo | 4.0 pF | |
| Input Capacitance (Cibo) | Cibo | 8.0 pF | |
| Current Gain-Bandwidth Product (fT) | fT | 300 MHz | |
| Noise Figure (NF) | NF | 5.0 dB | |
| Delay Time (td) | td | 35 ns | |
| Rise Time (tr) | tr | 35 ns | |
| Storage Time (ts) | ts | 200 ns | |
| Fall Time (tf) | tf | 50 ns |
Key Features
- General Purpose Amplifier and Switching Applications: Designed for medium power amplification and switching tasks.
- Lead-Free and RoHS Compliant: Fully compliant with RoHS regulations, making it environmentally friendly.
- Halogen and Antimony Free: Classified as a “green” device, free from halogen and antimony.
- AEC-Q101 Qualified and PPAP Capable: Suitable for automotive and other applications requiring unique site and control change requirements.
- Low Power Surface Mount Package: Housed in the SOT-323/SC-70 package, ideal for low power surface mount applications.
- High Current Gain-Bandwidth Product: fT of 300 MHz, suitable for high-frequency applications.
Applications
- General Purpose Amplification: Suitable for a wide range of amplifier applications.
- Switching Circuits: Ideal for switching applications due to its fast switching times.
- Automotive Electronics: AEC-Q101 qualified, making it suitable for automotive applications.
- Consumer Electronics: Used in various consumer electronic devices requiring small signal transistors.
- Industrial Control Systems: Can be used in industrial control systems for amplification and switching tasks.
Q & A
- What is the collector-emitter voltage rating of the MMBT3904WT1H?
The collector-emitter voltage rating is 40 Vdc.
- What is the maximum continuous collector current for the MMBT3904WT1H?
The maximum continuous collector current is 200 mAdc.
- What is the junction and storage temperature range for the MMBT3904WT1H?
The junction and storage temperature range is -55 to +150 °C.
- Is the MMBT3904WT1H RoHS compliant?
Yes, the MMBT3904WT1H is fully RoHS compliant.
- What is the current gain (hFE) range of the MMBT3904WT1H?
The current gain (hFE) range is 100 to 400.
- What is the typical delay time for the MMBT3904WT1H?
The typical delay time is 35 ns.
- What is the typical rise time for the MMBT3904WT1H?
The typical rise time is 35 ns.
- What is the typical storage time for the MMBT3904WT1H?
The typical storage time is 200 ns.
- What is the typical fall time for the MMBT3904WT1H?
The typical fall time is 50 ns.
- Is the MMBT3904WT1H suitable for automotive applications?
Yes, it is AEC-Q101 qualified and PPAP capable, making it suitable for automotive applications.
