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BC857BS

Name: BC857BS
Rating: 4.7 (12 reviews)

PNP+PNP TRANS 45V 0.2A SOT-363

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包 SOT363
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
TransistorType	2 PNP (Dual)
Current-Collector(Ic)(Max)	100mA
Voltage-CollectorEmitterBreakdown(Max)	45V
VceSaturation(Max)@IbIc	300mV @ 500µA, 10mA
Current-CollectorCutoff(Max)	15nA (ICBO)
DCCurrentGain(hFE)(Min)@IcVce	220 @ 2mA, 5V
Power-Max	300mW
Frequency-Transition	200MHz
OperatingTemperature	-55°C ~ 150°C (TJ)
MountingType	Surface Mount
Package/Case	6-TSSOP, SC-88, SOT-363

概述

Description

The BC857BS is a low-power NPN bipolar junction transistor (BJT) commonly used in electronic circuits for switching and amplification applications. It features a maximum collector current of 100 mA and can handle a collector-emitter voltage of up to 45 V. The BC857BS is known for its high gain (with a current gain (h_FE) typically ranging from 110 to 800), making it suitable for small signal amplification.
This transistor is characterized by its SOT-23 package, which allows for compact designs, making it ideal for modern consumer electronics. It operates effectively within a temperature range of -55°C to +150°C, ensuring reliability in various environmental conditions.
The BC857BS is often used in applications such as audio amplifiers, signal processing, and as a switch in low-power circuits. Its versatility, along with its availability and cost-effectiveness, make it a popular choice among engineers and hobbyists alike.

Features

The BC857BS is a low-power NPN bipolar junction transistor (BJT) designed for switching and amplification applications. Key features include:
1. Type: NPN transistor.
2. Package: Available in a SOT-23 package for compact circuit design.
3. Voltage Rating: Maximum collector-emitter voltage (Vce) of 45V.
4. Current Rating: Maximum collector current (Ic) of 100mA, suitable for low-power applications.
5. Gain: High current gain (hFE), typically ranging from 200 to 800, enhancing amplification capabilities.
6. Temperature Range: Operating temperature range from -55°C to +150°C, ensuring reliability in various environments.
7. Transition Frequency (fT): Offers a transition frequency of 150 MHz, making it suitable for high-frequency applications.
8. Low Noise: Designed for low noise operation, ideal for audio and RF applications.
Overall, the BC857BS is versatile for use in amplifiers, signal processing, and switching circuits in consumer electronics and communication devices.

Package

The BC857BS is typically packaged in a SOT-23 surface mount package. This configuration allows for compact design and efficient heat dissipation in electronic circuits.

Pinout

The BC857BS is a PNP bipolar junction transistor (BJT) commonly used for amplification and switching applications. It typically comes in a TO-92 package with three pins.
Pin Count and Functions:
1. Pin 1 (Emitter - E): This is where the current flows out of the transistor. In PNP transistors, the emitter is connected to a higher voltage relative to the collector.
2. Pin 2 (Base - B): This pin controls the transistor’s operation. Applying a small current to the base allows a larger current to flow from the emitter to the collector.
3. Pin 3 (Collector - C): This pin is where the current enters the transistor. The collector is connected to the load in most configurations.
The BC857BS has a maximum collector current of 100 mA and a maximum voltage rating of 45V. It is suitable for low-power applications in consumer electronics.

Manufacturer

The BC857BS is manufactured by various semiconductor companies, with STMicroelectronics being one of the prominent producers. STMicroelectronics is a global leader in the semiconductor industry, specializing in a wide range of products, including analog, digital, and mixed-signal devices. The company serves multiple sectors, including automotive, industrial, personal electronics, and communication. Founded in 1987, STMicroelectronics is known for its innovation and commitment to quality, providing solutions that drive performance and efficiency in electronic systems.

Application

The BC857BS is a low-power NPN bipolar junction transistor primarily used in switching and amplification applications. Common areas include audio amplification, signal processing, low-frequency amplification, and as a switch in electronic circuits. It is also utilized in general-purpose applications such as LED drivers, sensor interfacing, and in various consumer electronics for signal modulation and control.

Equivalent

The BC857BS is a PNP bipolar junction transistor (BJT). Equivalent products include BC557, 2N2907, and 2N5087. Always verify specifications like current, voltage ratings, and package type to ensure compatibility for your specific application.