Transistor

B857 PDF Datasheet – 50V, PNP Transistor, 2SB857

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This post explains for the transistor.

The Part Number is 2SB857, B857.

The Package is TO-220AB Type

The function of this semiconductor is 50V, 4A, PNP Transistor.

Manufacturer: Renesas

Preview images :B857 pdf datasheet

Description

B857 is -50V, -4A, Silicon PNP Triple Diffused Transistor. 

Characteristics:

2. Current flow: When a small current is applied to the base terminal, it allows a much larger current to flow from the emitter to the collector. This is called amplification or gain, and it makes the PNP transistor useful as an electronic switch or amplifier.

3. Voltage levels: The voltage levels in a PNP transistor are opposite to those in an NPN transistor. In a NPN transistor, the base-emitter junction is forward-biased and the collector-base junction is reverse-biased.

B857 pinout transistor

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = – 70 V

2. Collector to Emitter Voltage: Vceo = – 50 V

3. Emitter to Base Voltage: Vebo = – 5 V

4. Collector Current: Ic = – 4 A

5. Collector Dissipation : Pc = 40 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -45 ~ +150°C

 

Application:

1. Low frequency power amplifier complementary pair with 2SD1133 and 2SD1134

 

B857 PDF Datasheet

C2837 PDF Datasheet – 150V, NPN Transistor – 2SC2837

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This post explains for the transistor.

The Part Number is C2837, 2SC2837.

The function of this semiconductor is 150V, 10A, NPN Transistor.

The package is TO-3PN Type

Manufacturer: SavantIC

Preview images :C2837 pinout datasheet

Description

C2837 is Silicon NPN Power Transistor. 

Characteristics:

1. Current Amplification: NPN transistors are designed to amplify electrical current, and can be used in a wide range of electronic applications such as amplifiers, switches, and oscillators.

2. Forward Biased: In order to operate, the base-emitter junction of an NPN transistor must be forward biased, meaning that the base must be connected to a positive voltage relative to the emitter.

3. High Input Impedance: NPN transistors have a high input impedance, which means that they are less likely to draw current from the input source, and are therefore less likely to cause a drop in voltage across the source.

4. Inverted Output: NPN transistors are known for producing an inverted output relative to their input. That is, if the input signal is high, the output signal will be low, and vice versa. This behavior is due to the way the transistor is designed and is an important characteristic for many electronic applications.

 

Features:

1. Complement to type 2SA1186

2. For audio and general purpose applications

 

C2837 pdf transistor

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 150 V

2. Collector to Emitter Voltage: Vceo = 150 V

3. Emitter to Base Voltage: Vebo = 5 V

4. Collector Current: Ic = 10 A

5. Collector Dissipation : Pc = 100 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -55 ~ +150°C

C2837 PDF Datasheet