Overview
The BC857ALT1 is a PNP general-purpose bipolar transistor manufactured by onsemi. This transistor is designed for use in both linear and switching applications. It is housed in a small SOT-23 (TO-236) surface-mount package, making it suitable for lower power surface mount applications. The device is Pb-free, halogen-free, and BFR-free, ensuring compliance with RoHS standards. It is also AEC-Q101 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | -45 | V |
| Collector-Base Voltage | VCBO | -50 | V |
| Emitter-Base Voltage | VEBO | -5.0 | V |
| Collector Current - Continuous | IC | -100 | mA |
| Collector Current - Peak | IC | -200 | mA |
| DC Current Gain (hFE) | hFE | 125 - 800 | - |
| Collector-Emitter Saturation Voltage | VCE(sat) | -0.3 to -0.65 | V |
| Base-Emitter Saturation Voltage | VBE(sat) | -0.7 to -0.9 | V |
| Current-Gain Bandwidth Product | fT | 100 | MHz |
| Junction Temperature | TJ | -55 to +150 | °C |
Key Features
- Pb-free, halogen-free, and BFR-free, ensuring RoHS compliance.
- AEC-Q101 qualified and PPAP capable, suitable for automotive and other applications requiring unique site and control change requirements.
- Housed in a small SOT-23 (TO-236) surface-mount package, ideal for lower power surface mount applications.
- General-purpose switching and amplification capabilities.
- Low current (max. 100 mA) and low voltage (max. 65 V) operation.
- High DC current gain (hFE) with a range of 125 to 800).
Applications
The BC857ALT1 transistor is versatile and can be used in a variety of applications, including:
- Linear and switching applications in electronic circuits.
- Automotive systems due to its AEC-Q101 qualification and PPAP capability).
- Industrial and consumer electronics where general-purpose transistors are required).
- Power and computing applications where low voltage and current operation is necessary).
Q & A
- What is the collector-emitter voltage rating of the BC857ALT1 transistor?
The collector-emitter voltage rating of the BC857ALT1 transistor is -45 V).
- What package type is the BC857ALT1 transistor available in?
The BC857ALT1 transistor is housed in a SOT-23 (TO-236) surface-mount package).
- Is the BC857ALT1 transistor RoHS compliant?
- What is the maximum collector current of the BC857ALT1 transistor?
The maximum continuous collector current of the BC857ALT1 transistor is -100 mA, with a peak current of -200 mA).
- What is the DC current gain range of the BC857ALT1 transistor?
The DC current gain (hFE) of the BC857ALT1 transistor ranges from 125 to 800).
- What are the typical applications of the BC857ALT1 transistor?
The BC857ALT1 transistor is used in linear and switching applications, automotive systems, industrial and consumer electronics, and power and computing applications).
- Is the BC857ALT1 transistor suitable for automotive applications?
- What is the junction temperature range of the BC857ALT1 transistor?
The junction temperature range of the BC857ALT1 transistor is -55 to +150°C).
- What is the current-gain bandwidth product of the BC857ALT1 transistor?
The current-gain bandwidth product (fT) of the BC857ALT1 transistor is 100 MHz).
- Where can I find more detailed specifications and datasheets for the BC857ALT1 transistor?
You can find detailed specifications and datasheets on the onsemi website or through authorized distributors such as Mouser and Nexperia).
