Overview
The BC847CW is an NPN general-purpose transistor produced by Infineon Technologies, although it is also widely available from other manufacturers like Nexperia. This transistor is housed in a very small SOT323 (SC-70) Surface-Mounted Device (SMD) plastic package, making it ideal for compact and efficient designs.
It is part of a family of transistors that include the BC847AW and BC847BW, each with different gain selections, and has a complementary PNP type, the BC857CW. The BC847CW is designed for general-purpose switching and amplification applications.
Key Specifications
| Type Number | Package | Channel Type | Ptot (mW) | VCEO [max] (V) | IC [max] (mA) | hFE [min] | hFE [max] | TJ [max] (°C) | fT [min] (MHz) | Automotive Qualified |
|---|---|---|---|---|---|---|---|---|---|---|
| BC847CW | SOT323 (SC-70) | NPN | 200 | 45 | 100 | 420 | 800 | 150 | 100 | No |
Key Features
- High Current Gain: The BC847CW has a high current gain, ranging from 420 to 800, making it suitable for amplification applications.
- Low Collector-Emitter Saturation Voltage: It features a low collector-emitter saturation voltage, which is beneficial for reducing power consumption and improving efficiency.
- Low Noise: The transistor exhibits low noise characteristics between 30 Hz and 15 kHz, making it suitable for audio frequency (AF) applications.
- Complementary Types: The BC847CW has complementary PNP types, such as the BC857CW, which can be used in push-pull amplifier configurations.
- Pb-free and RoHS Compliant: The package is lead-free and compliant with RoHS directives, ensuring environmental sustainability.
- Automotive Qualification: While the specific part number mentioned may not be AEC Q101 qualified, similar parts in the series are, indicating robustness for automotive applications.
Applications
- AF Input Stages and Driver Applications: The BC847CW is ideally suited for audio frequency input stages and driver applications due to its low noise and high current gain characteristics.
- General-Purpose Switching and Amplification: It can be used in various general-purpose switching and amplification circuits, including those in automotive, industrial, and consumer electronics.
Q & A
- What is the maximum collector-emitter voltage (VCEO) of the BC847CW?
The maximum collector-emitter voltage (VCEO) of the BC847CW is 45 V.
- What is the maximum collector current (IC) of the BC847CW?
The maximum collector current (IC) of the BC847CW is 100 mA.
- What is the typical current gain (hFE) range of the BC847CW?
The typical current gain (hFE) range of the BC847CW is from 420 to 800.
- What package type is the BC847CW available in?
The BC847CW is available in the SOT323 (SC-70) Surface-Mounted Device (SMD) plastic package.
- Is the BC847CW RoHS compliant?
- What are the complementary PNP types of the BC847CW?
The complementary PNP types of the BC847CW are the BC857CW series).
- What is the maximum junction temperature (TJ) of the BC847CW?
The maximum junction temperature (TJ) of the BC847CW is 150°C).
- What is the transition frequency (fT) of the BC847CW?
The transition frequency (fT) of the BC847CW is a minimum of 100 MHz).
- Is the BC847CW suitable for automotive applications?
While the specific part number may not be AEC Q101 qualified, similar parts in the series are, indicating it can be used in robust automotive applications).
- What are the typical applications of the BC847CW?
The BC847CW is typically used in AF input stages, driver applications, and general-purpose switching and amplification circuits).
