November 2008

Rev 3

1/12

12

BU941

BU941P

High voltage ignition coil driver

NPN power Darlington transistors

Features

Applications

Description

The devices are bipolar Darlington transistors

manufactured using Multi-Epitaxial Planar

technology. They have been properly designed to

be used in automotive environment as electronic

ignition power actuators.

Figure 1.

Internal schematic diagrams

TO-3

1

2

1

2

3

TO-247

for TO-3

for TO-247

Table 1.

Device summary

Order codes

Marking

Package

Packaging

BU941

BU941

TO-3

Tray

BU941P

BU941P

TO-247

Tube

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