Overview
The BC847A is an NPN silicon general-purpose amplifier transistor produced by Fairchild Semiconductor, now part of ON Semiconductor. It is designed for low noise and high gain applications, making it suitable for a variety of electronic circuits. The transistor is available in small plastic packages such as SOT23, SOT323, and SOT883, which are ideal for space-constrained designs. It is Pb-free and RoHS compliant, ensuring environmental sustainability and compliance with regulatory standards.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Collector-Emitter Voltage (VCEO) | 45 | V |
| Collector-Base Voltage (VCES) | 50 | V |
| Emitter-Base Voltage (VEBO) | 6.0 | V |
| Collector Current (IC) | 100 | mA |
| Operating and Storage Junction Temperature Range | -55 to +150 | °C |
| DC Current Gain (hFE) | 110 - 800 | - |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.25 - 0.6 | V |
| Base-Emitter On Voltage (VBE(on)) | 0.58 - 0.77 | V |
| Current Gain - Bandwidth Product (fT) | 100 MHz | - |
| Output Capacitance (Cobo) | 3.5 - 6.0 pF | - |
Key Features
- High current gain
- Low collector-emitter saturation voltage
- Low noise between 30 Hz and 15 kHz
- Complementary PNP types: BC856 – BC858, BC857 – BC860
- Totally lead-free and fully RoHS compliant
- Halogen and antimony free, making it a 'green' device
- Qualified to AEC-Q101 standards for high reliability
- Ideally suited for automatic insertion in thick and thin-film circuits
- Ultra-small surface mount packages (SOT23, SOT323, SOT883)
Applications
- For AF input stages and driver applications
- Switching and AF amplifier applications
- General-purpose amplifier applications at collector currents from 1.0 µA to 50 mA
Q & A
- What is the collector-emitter voltage (VCEO) of the BC847A transistor?
The collector-emitter voltage (VCEO) of the BC847A transistor is 45 V.
- What are the complementary PNP types for the BC847A transistor?
The complementary PNP types for the BC847A transistor are BC856 – BC858 and BC857 – BC860.
- What is the maximum collector current (IC) for the BC847A transistor?
The maximum collector current (IC) for the BC847A transistor is 100 mA.
- Is the BC847A transistor RoHS compliant?
- What are the typical applications of the BC847A transistor?
The BC847A transistor is typically used for AF input stages, driver applications, switching, and AF amplifier applications.
- What is the operating temperature range for the BC847A transistor?
The operating and storage junction temperature range for the BC847A transistor is -55 to +150 °C.
- What is the DC current gain (hFE) range for the BC847A transistor?
The DC current gain (hFE) range for the BC847A transistor is 110 to 800.
- Is the BC847A transistor qualified to AEC-Q101 standards?
- What are the package options available for the BC847A transistor?
The BC847A transistor is available in SOT23, SOT323, and SOT883 packages.
- What is the thermal resistance, junction-to-ambient (RθJA) for the BC847A transistor?
The thermal resistance, junction-to-ambient (RθJA) for the BC847A transistor is approximately 357 °C/W.
