Overview
The BC857A-QR is a PNP general-purpose transistor manufactured by Nexperia USA Inc. This transistor is housed in a small SOT23 (TO-236AB) Surface-Mounted Device (SMD) plastic package, making it suitable for a wide range of applications where space is limited. The BC857A-QR is part of Nexperia’s extensive portfolio of bipolar transistors, which are known for their reliability and performance in various electronic designs.
Key Specifications
| Parameter | Value |
|---|---|
| Type Number | BC857A-Q |
| Package | SOT23 (TO-236AB) |
| Channel Type | PNP |
| VCEO [max] | 65 V |
| IC [max] | 100 mA |
| hFE [min] | 125 |
| hFE [max] | 800 |
| TJ [max] | 150°C |
| fT [min] | 100 MHz |
| Automotive Qualified | Yes (AEC-Q101) |
Key Features
- Compact Package: The BC857A-QR is packaged in a small SOT23 (TO-236AB) package, making it ideal for space-constrained designs.
- General-Purpose Use: Suitable for both switching and amplification applications.
- Low Current and Voltage: Maximum collector current of 100 mA and maximum collector-emitter voltage of 65 V.
- High Current Gain: Minimum current gain (hFE) of 125 and maximum of 800.
- Automotive Qualification: Qualified according to AEC-Q101, making it suitable for use in automotive applications.
Applications
The BC857A-QR transistor is versatile and can be used in a variety of applications across different industries, including:
- Automotive: Qualified for automotive use, it can be employed in vehicle electronics, such as in sensors, actuators, and control systems.
- Industrial: Suitable for industrial control systems, motor control, and power management.
- Consumer Electronics: Used in audio amplifiers, switching circuits, and other consumer electronic devices.
- Mobile and Wearables: Due to its small package size, it is also suitable for mobile devices and wearable electronics.
Q & A
- What is the package type of the BC857A-QR transistor?
The BC857A-QR transistor is packaged in a SOT23 (TO-236AB) Surface-Mounted Device (SMD) plastic package.
- What is the maximum collector current of the BC857A-QR?
The maximum collector current (IC) of the BC857A-QR is 100 mA.
- What is the maximum collector-emitter voltage of the BC857A-QR?
The maximum collector-emitter voltage (VCEO) of the BC857A-QR is 65 V.
- Is the BC857A-QR qualified for automotive applications?
Yes, the BC857A-QR is qualified according to AEC-Q101 and is recommended for use in automotive applications.
- What is the typical application of the BC857A-QR transistor?
The BC857A-QR transistor is used for general-purpose switching and amplification.
- What is the minimum current gain (hFE) of the BC857A-QR?
The minimum current gain (hFE) of the BC857A-QR is 125.
- What is the maximum junction temperature of the BC857A-QR?
The maximum junction temperature (TJ) of the BC857A-QR is 150°C.
- Can the BC857A-QR be used in consumer electronics?
Yes, the BC857A-QR can be used in consumer electronics such as audio amplifiers and switching circuits.
- How can I obtain samples of the BC857A-QR?
Samples of the BC857A-QR can be obtained through Nexperia’s sales organization or through their network of global and regional distributors.
- What is the minimum frequency (fT) of the BC857A-QR?
The minimum frequency (fT) of the BC857A-QR is 100 MHz.
