BU406 Transistor: Equivalent, Datasheet and Pinout

BU406 Symbol

BU406 Footprint

BU406 3D Model

The BU406 is a silicon Epitaxial Planar NPN transistor in Jedec TO-220 plastic package. It is a fast switching device for use in horizontal deflection output stages of large screens MTV receivers with 110o CRT.

• Package Type: TO-220

• Transistor Type: NPN

• Max Collector Current(IC): 7A

• Max Collector-Emitter Voltage (VCE): 200V

• Max Collector-Base Voltage (VCB): 400V

• Max Emitter-Base Voltage (VBE): 5V

• Max Collector Dissipation (Pc): 60 Watts

• Max Transition Frequency (fT): 10 MHz

• Max Storage & Operating temperature Should be: -65 to +150℃

• TV's and CRT's horizontal deflection circuits

• High-speed switching

• High voltage applications

• Audio Amplifiers

• Humidifiers

The equivalent for BU406:

• BU407

• 2SD823

• 2SD1163

• 2SD1163A

• BU104P

• BU124

• BU406D

• BU408

BU406 transistor was designed primarily for use in horizontal deflection circuits in TVs and CRTs, but its fast speed switching, high voltage, and low saturation capability make it excellent for use in a variety of other electronic applications.

The transistor's maximum collector to emitter voltage is 200V, and its maximum continuous collector current is 7A; the continuous collector current figure specifies the amount of continuous load this transistor can handle. The collector current peak value indicates the maximum load the transistor can handle in pulse mode for a few milliseconds. The transistor's maximum collector dissipation is 60 Watts, and its maximum junction temperature is 150°C.

To operate BU406 in safety, don't use it at full power and always keep it 20 percent below its absolute maximum ratings. Because the transistor's maximum collector current is 7A, do not drive a load that draws more than 560mA. Because the maximum collector to emitter voltage is 200V, no load greater than 160V should be driven. When using a transistor, always utilize a sufficient heatsink. Because the transistor's collector is also linked to the heatsink tab, it's critical to keep the heatsink isolated from circuit connections and to store or operate the transistor at temperatures between -65°C and 150°C.

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