Overview
The BC857QAS147 is a small signal bipolar transistor produced by NXP USA Inc., now part of Nexperia USA Inc. This transistor is designed for general-purpose applications and is known for its high current gain and low noise characteristics. It is part of the BC857 series, which is widely used in various electronic circuits due to its reliability and performance.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. / Nexperia USA Inc. |
| Transistor Type | PNP |
| Package / Case | SC-70, SOT-323 |
| Mounting Type | Surface Mount |
| Operating Temperature | 150°C (TJ) |
| Power - Max | 200 mW |
| Current - Collector (Ic) (Max) | 100 mA |
| Vce Saturation (Max) @ Ib, Ic | 650mV @ 5mA, 100mA |
| Current - Collector Cutoff (Max) | 15nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 220 @ 2mA, 5V |
| Frequency - Transition | 100MHz |
Key Features
- High Current Gain: The BC857QAS147 has a minimum DC current gain (hFE) of 220 at 2mA and 5V, making it suitable for amplification and switching applications.
- Low Noise: This transistor is designed to operate with low noise levels, which is crucial for sensitive electronic circuits.
- High Operating Temperature: With an operating temperature up to 150°C (TJ), it can be used in a variety of environments.
- Surface Mount Package: The SC-70 and SOT-323 packages make it ideal for surface mount technology (SMT) assembly, reducing the overall size of the circuit.
- Low Vce Saturation: The transistor has a low Vce saturation voltage of 650mV at 5mA and 100mA, which helps in reducing power consumption.
Applications
- General-Purpose Amplification: Suitable for use in general-purpose amplifier circuits due to its high current gain and low noise characteristics.
- Switching Circuits: Can be used in switching applications where high current gain and low saturation voltage are required.
- Automotive Electronics: Part of the AEC-Q101 series, making it suitable for use in automotive electronic systems.
- Consumer Electronics: Used in various consumer electronic devices such as audio equipment, home appliances, and more.
Q & A
- What is the BC857QAS147 transistor type?
The BC857QAS147 is a PNP bipolar transistor.
- What is the maximum operating temperature of the BC857QAS147?
The maximum operating temperature is 150°C (TJ).
- What is the maximum collector current of the BC857QAS147?
The maximum collector current is 100 mA.
- What is the typical DC current gain (hFE) of the BC857QAS147?
The minimum DC current gain (hFE) is 220 at 2mA and 5V.
- What package types are available for the BC857QAS147?
The transistor is available in SC-70 and SOT-323 packages.
- Is the BC857QAS147 suitable for automotive applications?
Yes, it is part of the AEC-Q101 series, making it suitable for automotive electronic systems.
- What is the maximum power dissipation of the BC857QAS147?
The maximum power dissipation is 200 mW.
- What is the Vce saturation voltage of the BC857QAS147?
The Vce saturation voltage is 650mV at 5mA and 100mA.
- What is the transition frequency of the BC857QAS147?
The transition frequency is 100MHz.
- Is the BC857QAS147 available in surface mount technology (SMT) packages?
Yes, it is available in SMT packages such as SC-70 and SOT-323.
