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Partno	Mfg	Dc	Qty	Available	Descript
BULD742C	ST	N/a	66	avai	HIGH VOLTAGE FAST SWITCHING NPN POWER TRANSISTOR

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BUP200 ,IGBT (Low forward voltage drop High switching speed Low tail current Latch-up free Avalanche rated)BUP 200IGBTPreliminary data• Low forward voltage drop• High switching speed• Low tail current • Lat ..
C25P20FR , LOW FORWARD VOLTAGE DROP
C25P40FR , LOW FORWARD VOLTAGE DROP
C2611 , Collector-emitter Voltage: V(BR)CEO=400V, Collector Current: IC=0.2A
C2611 , Collector-emitter Voltage: V(BR)CEO=400V, Collector Current: IC=0.2A
C2611 , Collector-emitter Voltage: V(BR)CEO=400V, Collector Current: IC=0.2A
C2625 , 700/800 WATTS (AC) DC/D CSINGLE OUTPUT

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BULD742C
HIGH VOLTAGE FAST SWITCHING NPN POWER TRANSISTOR
August 2007 Rev 1 1/12
BULD742C
High voltage fast-switching
NPN power transistor
Features Low spread of dynamic parameters High voltage capability Minimum lot-to-lot spread for reliable operation Very high switching speed
Applications Electronic ballast for fluorescent lighting Switch mode power supplies
Description
The device is manufactured using high voltage
Multi-Epitaxial Planar technology for high
switching speeds and high voltage capability.
Thanks to an increased intermediate layer, it has
an intrinsic ruggedness which enables the
transistor to withstand an high collector current
level during breakdown condition, without using
the transil protection usually necessary in typical
converters for lamp ballast.
Figure 1. Internal schematic diagram
Table 1. Device summary
Contents BULD742C
2/12
Contents Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
BULD742C Electrical ratings
3/12 Electrical ratings
Table 2. Absolute maximum rating
Table 3. Thermal data
Electrical characteristics BULD742C
4/12
2 Electrical characteristics
(Tcase = 25°C unless otherwise specified)
Table 4. Electrical characteristics Pulsed duration = 300 ms, duty cycle ≤ 1.5%
BULD742C Electrical characteristics
5/12
2.1 Electrical characteristics (curves)

Figure 2. Safe operating area Figure 3. Derating curve
Figure 4. Output characteristics Figure 5. DC current gain
Figure 6. DC current gain Figure 7. Collector - emitter saturation
voltage
Electrical characteristics BULD742C
6/12
Figure 8. Base-emitter saturation
voltage
Figure 9. Resistive load switching on
times (hFE = 5)
Figure 10. Resistive load switching off
times (hFE = 5)
Figure 11. Resistive load switching on
times (hFE = 10)
Figure 12. Resistive load switching off
times (hFE = 10)
Figure 13. Reverse biased SOA