Overview
The MMBT3904-HF is a general-purpose NPN bipolar junction transistor (BJT) manufactured by Comchip Technology. This transistor is designed for use in a variety of applications, including switching and amplifier circuits. It is part of the SOT-23 package family, making it suitable for surface mount technology. The MMBT3904-HF is RoHS compliant and halogen-free, aligning with modern environmental standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Base Voltage (VCBO) | 60 | V |
| Collector-Emitter Voltage (VCEO) | 40 | V |
| Emitter-Base Voltage (VEB) | 6 | V |
| Collector Current (IC max) | 0.2 | A |
| Collector Power Dissipation (Pc) | 0.2 | W |
| Transition Frequency (ft) | 300 | MHz |
| Forward Current Transfer Ratio (hFE min) | 100 | |
| Maximum Operating Junction Temperature (Tj) | 150 | °C |
| Package | SOT-23 |
Key Features
- Epitaxial planar die construction
- Complementary PNP transistor: MMBT3906
- RoHS compliant and halogen-free
- SOT-23 package for surface mount technology
- High transition frequency of 300 MHz
- Low collector power dissipation of 0.2 W
- Maximum collector current of 0.2 A
Applications
The MMBT3904-HF is versatile and can be used in various electronic circuits, including:
- Switching circuits: Due to its high transition frequency and low power dissipation, it is suitable for high-speed switching applications.
- Amplifier circuits: It can be used in small signal amplifier circuits where high gain and low noise are required.
- General-purpose electronics: It is applicable in a wide range of general-purpose electronic devices where a reliable NPN transistor is needed.
Q & A
- What is the collector-base voltage rating of the MMBT3904-HF?
The collector-base voltage rating is 60 V. - What is the maximum collector current of the MMBT3904-HF?
The maximum collector current is 0.2 A. - What is the transition frequency of the MMBT3904-HF?
The transition frequency is 300 MHz. - Is the MMBT3904-HF RoHS compliant?
Yes, the MMBT3904-HF is RoHS compliant and halogen-free. - What is the package type of the MMBT3904-HF?
The package type is SOT-23. - What is the maximum operating junction temperature of the MMBT3904-HF?
The maximum operating junction temperature is 150 °C. - What is the forward current transfer ratio (hFE) of the MMBT3904-HF?
The minimum forward current transfer ratio (hFE) is 100. - What are the typical applications of the MMBT3904-HF?
The MMBT3904-HF is typically used in switching circuits, amplifier circuits, and general-purpose electronics. - Does the MMBT3904-HF have a complementary PNP transistor?
Yes, the complementary PNP transistor is the MMBT3906. - What is the collector power dissipation of the MMBT3904-HF?
The collector power dissipation is 0.2 W.
