STSA851-AP

STSA851 Low voltage fast-switching NPN power transistor Features ■ ■ ■ Very low collector to emitter saturation voltage High current gain characteristic Fast-switching speed Applications ■ ■ ■ ■ Emergency lighting Voltage regulators Relay drivers High efficiency low voltage switching applications Figure 1. Internal schematic diagram TO-92 TO-92AP Description The device is manufactured in NPN planar technology by using a "base island" layout. the resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. Table 1. Device summary Marking SA851 SA851 Package TO-92 TO-92AP Packaging Bulk Ammopack Order code STSA851 STSA851-AP March 2008 Rev 3 1/11 www.st.com 11 STSA851 Contents 1 2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 2.2 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2/11 STSA851 Electrical ratings 1 Electrical ratings Table 2. Symbol VCBO VCEO VEBO IC ICM IB 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 < 5 ms) Base current Total dissipation at Tamb = 25 °C Storage temperature Max. operating junction temperature Value 150 60 7 5 20 1 1.1 -65 to 150 150 Unit V V V A A A W °C °C Table 3. Symbol Rthj-amb Thermal data Parameter Thermal resistance junction-ambient __ max Value 114 Unit °C/W 3/11 Electrical characteristics STSA851 2 Electrical characteristics (Tcase = 25 °C unless otherwise specified) Table 4. Symbol ICBO Electrical characteristics Parameter Collector cut-off current (IE = 0) Emitter cut-off current (IC = 0) Test conditions VCB = 120 V VCB = 120 V VEB = 7 V TC = 100 °C Min. Typ. Max. 50 1 10 Unit nA µA nA IEBO Collector-base V(BR)CBO (1) breakdown Voltage (IE = 0) V(BR)CEO (1) IC = 100 µA 150 V Collector-emitter breakdown Voltage (IB = 0) IC = 10 mA 60 V Emitter-base breakdown IE = 100 µA V(BR)EBO (1) Voltage (IC = 0) IC = 100 mA VCE(sat) (1) 7 I B = 5 mA IB = 50 mA IB = 50 mA IB = 200 mA IB = 200 mA V CE = 1 V V CE = 1 V V CE = 1 V V CE = 1 V IC = 100 mA f = 1 MHz 150 150 90 30 V 10 70 140 320 1 300 270 140 50 130 45 50 120 200 450 1.15 mV mV mV mV V Collector-emitter saturation voltage IC = 1 A IC = 2 A IC = 5 A _ _ _ VBE(sat) (1) Base-emitter saturation voltage IC = 4 A IC = 10 mA hFE DC current gain IC = 2 A IC = 5 A IC = 10 A 350 fT CCBO Transition frequency Collector-base capacitance Resistive load Turn-on time Storage time Fall time VCE = 10 V VCB = 10 V MHz pF ton ts tf IC = 1 A VCC = 10 V 55 1.35 120 ns µs ns IB1 = -IB2 = 0.1 A 1. Pulsed duration = 300 µs, duty cycle ≥ 1.5%. 4/11 STSA851 Electrical characteristics 2.1 Electrical characteristics (curves) Figure 2. Output characteristics Figure 3. DC current gain Figure 4. Collector-emitter saturation voltage Figure 5. Collector-emitter saturation voltage Figure 6. Base-emitter saturation voltage Figure 7. Base-emitter on voltage 5/11 Electrical characteristics Figure 8. Switching times resistive load Figure 9. STSA851 Switching times resistive load Figure 10. Capacitance 2.2 Test circuit Figure 11. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 6/11 STSA851 Package mechanical data 3 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® 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 7/11 Package mechanical data STSA851 TO-92 BULK SHIPMENT MECHANICAL DATA DIM. mm. MIN. 4.32 0.36 4.45 3.30 2.41 1.14 12.70 2.16 0.92 0.41 5 O TYP MAX. 4.95 0.51 4.95 3.94 2.67 1.40 15.49 2.41 1.52 0.56 A b D E e e1 L R S1 W V 0102782 C 8/11 STSA851 Package mechanical data TO-92 AMMOPACK SHIPMENT (Suffix”-AP”) MECHANICAL DATA mm. TYP DIM. A1 T T1 T2 d P0 P2 F1,F2 delta H W W0 W1 W2 H H0 H1 D0 t L I1 delta P MIN. 12.50 5.65 2.44 -2.00 17.50 5.70 8.50 18.50 15.50 3.80 12.70 6.35 2.54 18.00 6.00 9.00 16.00 4.00 MAX. 4.80 3.80 1.60 2.30 0.48 12.90 7.05 2.94 2.00 19.00 6.30 9.25 0.50 20.50 16.50 25.00 4.20 0.90 11.00 1.00 3.00 -1.00 9/11 Revision history STSA851 4 Revision history Table 5. Date 05-Sep-2003 25-Mar-2008 Document revision history Revision 2 3 New graphics. 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