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2STR1215
Low voltage fast-switching NPN power transistor
General features

Very low collector-emitter saturation voltage High current gain characteristic Fast switching speed Miniature SOT-23 plastic package for surface mounting circuits In compliance with the 2002/93/EC European Directive
SOT-23
Description
The 2STR1215 is a NPN transistor manufactured using new "PB-HCD" (Power Bipolar High Current Density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. The complementary PNP is the 2STR2215.
Internal schematic diagram
Applications

LED Battery charger Voltage and relay driver Voltage regulation
Order codes
Part Number 2STR1215 Marking 115 Package SOT-23 Packing Tape & reel
July 2006
Rev 2
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2STR1215
Contents
1 2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 2.2 Electrical characteristics (curves) ............................ 5 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 4
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
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Electrical ratings
1
Electrical ratings
Table 1.
Symbol VCBO VCEO VEBO IC ICM Ptot Tstg TJ
Absolute maximum rating
Parameter Collector-base voltage (IE = 0) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0) Collector current Collector peak current (tP < 5ms) Total dissipation at T amb = 25C Storage temperature Max. operating junction temperature Value 15 15 5 1.5 3 500 -65 to 150 150 Unit V V V A A mW C C
Table 2.
Symbol
Thermal data
Parameter __max Value 250 Unit C/W
Rthj-amb(1) Thermal resistance junction-amb (1) Device mounted on PCB area of 1cm2
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Electrical characteristics
2STR1215
2
Electrical characteristics
(Tcase = 25C unless otherwise specified) Table 3.
Symbol ICBO IEBO
Electrical characteristics
Parameter Collector cut-off current (IE =0) Emitter cut-off current (IC =0) Collector-emitter breakdown voltage (IE = 0) Test Conditions VCB = 15V VEB = 4V Min. Typ. Max. 0.1 0.1 Unit A A
V(BR)CBO
IC = 100A
15
V
Collector-emitter V(BR)CEO (2) breakdown voltage (IB = 0) V(BR)EBO VCE(sat) (2) Emitter-base breakdown voltage (IC = 0) Collector-emitter saturation voltage Base-emitter saturation voltage
IC = 10mA
15
V
IE = 100A IC = 0.1A IC = 1A IC = 2A IC = 1A IC = 50mA IB = 1mA IB = 100mA IB = 200mA IB = 100mA V CE = 2V V CE = 2V V CE = 2V V CE = 2V V CB = 10V
5 0.15 0.25 0.4 0.9 200 200 130 80 16 280 560 0.5 0.85 1.25
V V V V V
VBE(sat) (2)
hFE (2)
DC current gain
IC = 0.5A IC = 1A IC = 2A IE = 0 f = 1MHz IC = 1.5A
CCBO
Collector-base capacitance Resistive load Turn-on time Turn-off time
pF
ton toff
VCC = 10V
IB1 = -IB2 = 150mA
60 310
ns ns
Note (2) Pulsed duration = 300 s, duty cycle 1.5%
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Electrical characteristics
2.1
Electrical characteristics (curves)
Figure 1. DC current gain Figure 2. Collector-emitter saturation voltage
Figure 3.
Base-emitter saturation voltage
Figure 4.
Resistive load switching time
Figure 5.
Resistive load switching time
Figure 6.
Capacitance
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Electrical characteristics
2STR1215
2.2
Test circuits
Figure 7. Resistive load switching test circuit
1) Fast electronic switch 2) Non-inductive resistor
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Package mechanical data
3
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com
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Package mechanical data
2STR1215
SOT-23 MECHANICAL DATA
mm MIN. A B C D E F G H L M N O 0.85 0.65 1.20 2.80 0.95 1.9 2.1 0.38 0.3 0 0.3 0.09 TYP. MAX. 1.1 0.95 1.4 3 1.05 2.05 2.5 0.48 0.6 0.1 0.65 0.17 MIN. 33.4 25.6 47.2 110.2 37.4 74.8 82.6 14.9 11.8 0 11.8 3.5 mils TYP. MAX. 43.3 37.4 55.1 118 41.3 80.7 98.4 18.8 23.6 3.9 25.6 6.7
DIM.
0044616/B
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2STR1215
Revision history
4
Revision history
Table 4.
Date 09-Feb-2006 18-Jul-2006
Revision history
Revision 1 2 Initial release New template Changes
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2STR1215
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