NPN

What is BD139? 80V, 1.5A, NPN Transistor ( PDF )

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This post explains for the semiconductor BD139.

What is BD139?

This transistor is housed in a TO-126 package and has a maximum collector current of 1.5A, a maximum collector-emitter voltage of 80V, and a maximum power dissipation of 12.5W.

Low noise and high gain characteristics, which make it ideal for use in audio amplifiers and other low-level signal amplification applications. Additionally, its low saturation voltage and fast switching speed make it suitable for use in high-speed switching circuits.

Part Number: BD139, BD137, BD135

Function: 80V, 1.5A, NPN Epitaxial Silicon Transistor

Package: TO-126 3L Type

Manufacturer: Fairchild Semiconductor

Image

BD139 image

Features

1. NPN bipolar junction transistor
2. Low power, medium voltage device
3. Maximum collector current of 1.5A
4. Maximum collector-emitter voltage of 80V
5. Maximum power dissipation of 12.5W
6. Housed in a TO-126 package
7. Low noise and high gain characteristics
8. Low saturation voltage and fast switching speed
9. Suitable for a wide range of applications
10. Complement to BD136, BD138 and BD140 respectively

Advantages Vs Disadvantages

Advantages of BD139:

1. Versatile and widely used in the electronics industry
2. Reliable and cost-effective
3. Ideal for low-level signal amplification applications
4. Suitable for use in high-speed switching circuits
5. Readily available

Disadvantages:

1. Maximum power dissipation of 12.5W may not be sufficient for some high-power applications

2. Maximum collector-emitter voltage of 80V may not be suitable for some high-voltage applications

 

BD139 datasheet

Part Number  ->   Marking
BD13516S  ->  BD135-16
BD1356STU  ->  BD135-6
BD13510STU  ->  BD135-10
BD13516STU  ->  BD135-16
BD13716STU  ->  BD137-16
BD13710STU  ->  BD137-10
BD13716S  ->  BD137-16
BD13916STU  ->  BD139-16
BD13910S  ->  BD139-10
BD13916S  ->  BD139-16
BD1396STU  ->  BD139-6
BD13910STU  ->  BD139-10

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 80 V

2. Collector to Emitter Voltage: Vceo = 80 V

3. Emitter to Base Voltage: Vebo = 5 V

4. Collector Current: Ic = 1.5 A

5. Collector Dissipation : Pc = 12.5 W

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -65 ~ +150°C

 

Applications:

1. Medium Power Linear and Switching

 

BD139 Datasheet

BD139 fairchild pdf


 

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What is 2SD389? 60V, 4A, NPN Transistor – Panasonic

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What is 2SD389?

This is a silicon NPN transistor with a maximum collector-base voltage (Vcb) rating of 60V and a continuous collector current (Ic) rating of 4A. Therefore, it can safely handle a voltage of 60V and a current of 4A without any problems.

However, it is important to note that the actual performance of the transistor will depend on the specific circuit design and operating conditions.

Function: NPN Diffused Junction Mesa Transistor

Package: TO-220AB Type

Manufacturer: Panasonic Corporation

Image and Pinouts:

2SD389 datasheet

Description

This is NPN Transistor for Medium Power Amplifier. It is suitable for use in a wide range of low-power amplifier and switching applications, but it is important to carefully consider the specific requirements of the circuit and ensure that the transistor is operated within its safe operating limits.

1. 2SD389

1. Collector-Base Voltage: Vcbo = 60 V
2. Collector-Emitter Voltage: Vceo = 60 V
3. Emitter-Base voltage : Vebo = 8 V
4. Collector Current: Ic = 4 A
5 Collector Dissipation : Pc = 40 W

2. 2SD389A

Collector-Base Voltage: Vcbo = 80 V
Collector-Emitter Voltage: Vceo = 80 V

Features

1. Large Pc
2. Wide area of safe operation ( ASO )

This is suitable for use in a wide range of low-power amplifier and switching applications, but it is important to carefully consider the specific requirements of the circuit and ensure that the transistor is operated within its safe operating limits. If higher power dissipation is required, it may be necessary to use a heat sink or choose a transistor with a higher Pd rating.

Other data sheets are available within the file: D389, D389A, 2SD601, 2SD601A

2SD389 Datasheet PDF Download

2SD389 pdf

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