BU406 Silicon Epitaxial-Base Planar NPN Transistor Datasheet

February 25th, 2010

The BU406 transistor is a Silicon Epitaxial-Base Planar NPN transistor. These devices are used for horizontal deflection Pb free plating product number BU406L TO220F output stages of large screens MTV receivers with 110 C CRT.

In the datasheet you will find absolute maximum rating for Collector Base Voltage (Vcbo): 400V, Emitter Base Voltage (Vebo): 6V, Collector Current (Ic): 7A, Base Current (Ib): 4A. Electrical Charactheristics : 70-240 for the DC Current Gain, 1.2V Base Emitter Saturation Voltage, 1V Collector Emitter Saturation Voltage, 0.75us Turn-off Time and 10 MHz Transition Frequency.

BU406 Silicon Epitaxial-Base Planar NPN Transistor Datasheet continued »

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4N26 Emitting Diode Pinout Diagram and Schematic

February 24th, 2010

4N26 devices is an emitting diode optically coupled to a monolithic silicon phototransistor detector, it may be applied 4n26 datasheet and pinout diagram in applications such general purpose switching circuits, I/O interfacing, and solid state relays. The following picture shown the 4N26 Emitting Diode Pinout Diagram.

And here is 4N26 PINOUT Description:
1 – LED Anode
2 – LED Cathode
3 – N.C
4 – Emitter
5 – Collector
6 – Base

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1.25V Mini2440 Power Supply System Schematic Diagram

February 24th, 2010

The mini2440’s power system utilizes a voltage step-down chip to generate three kinds of voltages: 3.3V, 1.8V and 1.25V which connected to an external 5V power supply. The following picture shows 1.25V Mini2440 Power Supply System Schematic Diagram.

mini2440 power supply system diagram

This Mini2440 power supply system doesn’t have a full featured power management circuit, also it is not under software control.

1.25V Mini2440 Power Supply System Schematic Diagram continued »

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