BC857

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BC857

Bipolar Transistors - BJT SOT23,PNP,0.1A,45V,L owNoise

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Standard Pack Qty 3000

Vue d'ensemble

Description

The BC857 is a general-purpose NPN bipolar junction transistor (BJT) commonly used in various electronic applications. It features a low current and voltage rating, making it suitable for small signal amplification and switching in low-power circuits. The BC857 is characterized by its maximum collector current of 100 mA and a maximum collector-emitter voltage of 45 V.
Key specifications include a current gain (h_FE) range of 100 to 600, ensuring efficient signal amplification. The transistor is housed in a standard SOT-23 package, which allows for compact designs in modern electronic devices.
It is often used in audio applications, signal processing, and driver circuits due to its favorable gain characteristics and low noise. Additionally, the BC857 is compatible with standard semiconductor manufacturing processes, making it widely available and cost-effective.
Overall, the BC857 is a versatile component suitable for hobbyists and professionals alike, providing an essential building block for various electronic designs.

Features

The BC857 is a general-purpose NPN bipolar junction transistor (BJT) ideal for low-power switching and amplification applications. Key features include:
1. Type: NPN transistor.
2. Voltage Rating: Collector-emitter voltage (Vce) up to 45V.
3. Current Rating: Maximum collector current (Ic) of 100mA.
4. Gain: Current gain (hFE) typically ranges from 110 to 800, providing efficient amplification.
5. Package: Available in a TO-92 or SOT-23 package, making it suitable for compact designs.
6. Frequency: Maximum frequency of operation is around 100 MHz, suitable for high-speed applications.
7. Power Dissipation: Can handle up to 500mW of power dissipation, making it versatile for various applications.
8. Temperature Range: Operating temperature ranges from -55°C to +150°C, ensuring reliability in diverse environments.
BC857 is commonly used in audio and RF applications, signal processing, and as a switching device in various electronic circuits.

Package

The BC857 is a general-purpose NPN bipolar junction transistor (BJT) commonly packaged in a SOT-23 or TO-92 format. These packages are compact and suitable for various electronic applications, including switching and amplification.

Pinout

The BC857 is a PNP bipolar junction transistor (BJT) commonly used for switching and amplification applications. It features a total of 3 pins, which are designated as follows:
1. Emitter (E): This pin is connected to the emitter terminal, where current flows out of the transistor.
2. Base (B): The base pin controls the transistor's operation. A small current into the base allows current to flow from the emitter to the collector.
3. Collector (C): This pin connects to the collector terminal, where the larger current flows into the transistor.
The BC857 is often used in low-power applications, offering good performance in both switching and analog circuits. It typically has a maximum collector current of 100 mA and a maximum voltage rating (V_CE) of 45V.

Manufacturer

The BC857 is manufactured by multiple semiconductor companies, with Nexperia and ON Semiconductor being among the prominent producers. These companies specialize in the design and manufacturing of discrete semiconductors, integrated circuits, and other electronic components.
Nexperia, a spin-off from NXP Semiconductors, focuses on high-volume production of discrete and logic devices, while ON Semiconductor offers a broad range of semiconductor solutions, including power management, analog, and signal processing. Both companies play a significant role in the electronics industry, supplying components for various applications in consumer electronics, automotive, industrial, and telecommunications sectors.

Application

The BC857 is a general-purpose NPN transistor commonly used in audio amplification, signal switching, and low-power applications. Its key application areas include consumer electronics, such as amplifiers and radios, as well as in signal processing circuits and small motor drivers. The BC857’s low noise and high gain make it suitable for various analog and digital circuits in telecommunications and automotive electronics.

Equivalent

The BC857 is a PNP bipolar junction transistor (BJT). Equivalent products include the BC337 (NPN), 2N2907, MPS2222, and 2N5087. For similar applications, consider using the BC556 or 2N5401 as alternatives. Ensure that specifications like voltage, current ratings, and package types match your requirements. Always check the datasheets for exact parameters.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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