MD1802FX B651 IC

The MD1802FX is manufactured using Diffused Collector in Planar Technology adopting new and
enhanced high voltage structure. The new MD product series show improved silicon efficiency bringing updated performance to the Horizontal Deflection stage.

Working of  MD1802FX B651 IC :

The MD1802FX B651 is a power transistor used in various applications, typically in power supply or amplifier circuits. Specifically, it’s a high-voltage NPN bipolar junction transistor (BJT) designed to handle relatively high currents and voltages.

The working of the MD1802FX B651 involves its use within a circuit. In power supply applications, for instance, it might be used to regulate or control the flow of current. In amplifier circuits, it might help amplify signals.

Here’s a general outline of its functionality:

1. Amplification: In amplifier circuits, it amplifies small electrical signals applied to its base and produces amplified signals across its collector-emitter path.
2. Switching: It can also function as a switch. When used in this capacity, it operates either in a fully “on” (saturated) or “off” state, allowing a large amount of current to flow through or blocking it entirely.
3. Heat Dissipation: During its operation, it generates heat due to its power-handling capabilities. Therefore, proper heat sinking or thermal management might be required to ensure its optimal performance and longevity.

The specific working details would heavily depend on the circuit it’s implemented in and the role it’s assigned. It’s important to refer to the datasheet or circuit diagram for precise information on its usage in a particular application.

Applications :
■ Horizontal deflection output for TV
■ Switch mode power supplies for CRT TV

Datasheet available here.

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