BU931 Allicdata Electronics

BU931 Discrete Semiconductor Products

Allicdata Part #:

BU931-ND

Manufacturer Part#:

BU931

Price: $ 0.00
Product Category:

Discrete Semiconductor Products

Manufacturer: STMicroelectronics
Short Description: TRANS NPN DARL 400V 15A TO-3
More Detail: Bipolar (BJT) Transistor NPN - Darlington 400V 15A...
DataSheet: BU931 datasheetBU931 Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Series: --
Packaging: Tube 
Part Status: Obsolete
Transistor Type: NPN - Darlington
Current - Collector (Ic) (Max): 15A
Voltage - Collector Emitter Breakdown (Max): 400V
Vce Saturation (Max) @ Ib, Ic: 1.8V @ 250mA, 10A
Current - Collector Cutoff (Max): 100µA
DC Current Gain (hFE) (Min) @ Ic, Vce: 300 @ 5A, 10V
Power - Max: 175W
Frequency - Transition: --
Operating Temperature: 200°C (TJ)
Mounting Type: Chassis Mount
Package / Case: TO-204AA, TO-3
Supplier Device Package: TO-3
Base Part Number: BU931
Description

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The BU931 is a single-stage, NPN, balk-base bipolar junction transistor (BJT) designed for analog switching and switching applications. It has a maximum voltage rating of 35V, a maximum current rating of 2A and a low forward voltage drop of 0.35V. It is available in two different versions: the BU931F and the BU931T. Both versions have the same maximum voltage rating and same power ratings, so they can be used interchangeably.

The BU931 is commonly used in applications such as audio amplifiers, transistor inverters, switching regulators, and as a signal switch. It has also been used in medical imaging equipment, automotive ignition systems, and consumer electronics. Because of its low forward voltage drop, it is often used in low-power applications, where a low-power signal switch is needed.

The working principle of the BU931 can be seen by looking at its construction. It consists of two layers of semiconductors – P-type material (External) and N-type material (Internal). When a positive voltage is applied to the Base electrode of the BU931, it allows current flow from the Collector to the Emitter. This causes a current flow from the Emitter to the Collector, which allows the device to switch from one current level to another.

The BU931 is one of the most commonly used transistors in the market due to its low cost, simple construction, and excellent switching characteristics. It is also an inexpensive option for low- and medium-power applications, and its low forward voltage drop makes it a great choice for energy-efficient designs.

Overall, the BU931 is an excellent transistor for a wide variety of low- and medium-power applications, due to its reliable performance, low cost, and highly switching capability. It is a versatile device that can be used in many different applications, from low-power audio amplification to high-power switching regulators.

The specific data is subject to PDF, and the above content is for reference

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