BU941ZP BU941ZPFI
High voltage ignition coil driver NPN power Darlington transistors
Features
■ Very rugged bipolar tec...
BU941ZP BU941ZPFI
High voltage ignition coil driver
NPN power Darlington
transistors
Features
■ Very rugged bipolar technology ■ Built in clamping Zener ■ High operating junction temperature ■ Fully insulated package (U.L. compliant) for
easy mounting
Applications
■ High ruggedness electronic ignitions
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.
3 2 1
TO-247
TO-3PF
Figure 1. Internal schematic diagram
Table 1. Device summary Order code BU941ZP BU941ZPFI
Marking BU941ZP BU941ZPFI
Packages TO-247 TO-3PF
Packaging Tube Tube
January 2008
Rev 7
1/11
www.st.com
11
Absolute maximum ratings
1 Absolute maximum ratings
BU941ZP BU941ZPFI
Table 2. Absolute maximum ratings
Symbol
Parameter
VCEO VEBO
IC ICM IB IBM Ptot
Visol
Tstg TJ
Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0...