Overview
The MMBT3904 is a small signal NPN bipolar junction transistor (BJT) produced by NTE Electronics, Inc. It is designed for general-purpose switching and amplification applications. This transistor is part of the SOT-23 package family, making it suitable for surface mount technology (SMT) assembly. The MMBT3904 is known for its high collector-emitter voltage and current capabilities, making it versatile for various electronic circuits.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Base Voltage | Vcbo | 60 | V |
| Collector-Emitter Voltage | Vceo | 40 | V |
| Emitter-Base Voltage | Vebo | 6 | V |
| Collector Current | Ic | 200 | mA |
| Collector Power Dissipation | Pc | 225 | mW |
| Junction Temperature | Tj | 150 | °C |
| Transition Frequency | ft | 300 | MHz |
| Package Type | SOT-23 |
Key Features
- Epitaxial Planar Die Construction: Ensures reliable and efficient performance.
- High Collector-Emitter Voltage: Up to 40V, making it suitable for controlling higher voltage loads.
- High Transition Frequency: Greater than 300 MHz, ideal for high-frequency applications.
- Lead-Free and RoHS Compliant: Meets EU RoHS 2.0 directives, ensuring environmental compliance.
- Complementary PNP Type Available: MMBT3906 is the complementary PNP transistor.
- Surface Mount Device (SMD): SOT-23 package for easy integration into SMT designs.
Applications
- Drive Modules: Suitable for driving LEDs, relays, and other small loads.
- Amplifier Modules: Used in signal amplifiers, audio amplifiers, and other amplification circuits.
- General Switching: Ideal for general-purpose switching applications due to its high collector-emitter voltage and current capabilities.
Q & A
- What is the maximum collector-emitter voltage of the MMBT3904 transistor?
The maximum collector-emitter voltage (Vceo) is 40V. - What is the maximum collector current of the MMBT3904 transistor?
The maximum collector current (Ic) is 200mA. - What is the transition frequency of the MMBT3904 transistor?
The transition frequency (ft) is greater than 300 MHz. - Is the MMBT3904 transistor RoHS compliant?
Yes, the MMBT3904 is lead-free and compliant with EU RoHS 2.0 directives. - What is the package type of the MMBT3904 transistor?
The package type is SOT-23. - What are some common applications of the MMBT3904 transistor?
Common applications include drive modules, amplifier modules, and general switching. - What is the maximum junction temperature of the MMBT3904 transistor?
The maximum junction temperature (Tj) is 150°C. - Is there a complementary PNP type available for the MMBT3904 transistor?
Yes, the complementary PNP type is the MMBT3906. - What is the maximum collector power dissipation of the MMBT3904 transistor?
The maximum collector power dissipation (Pc) is 225 mW. - What is the emitter-base voltage of the MMBT3904 transistor?
The emitter-base voltage (Vebo) is 6 V.
