BD179 NPN power transistor Features ■ NPN transistor Applications ■ General purpose switching Description 3 The device is manufactured in Planar technology with “Base Island” layout. The resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. 1 SOT-32 (TO-126) Figure 1. Table 1. 2 Internal schematic diagram Device summary Order code Marking Package Packaging BD179 BD179 SOT-32 Tube July 2007 Rev 2 1/9 www.st.com 9 Electrical ratings 1 BD179 Electrical ratings Table 2. Absolute maximum rating Symbol Value Unit VCBO Collector-base voltage (IE = 0) 80 V VCEO Collector-base voltage (IB = 0) 80 V VEBO Emitter-base voltage (IC = 0) 5 V Collector current 3 A Collector current current (tp < 5ms) 7 A Base current 1 A PTOT Total dissipation at T case = 25°C 30 W Tstg Storage temperature -65 to 150 °C 150 °C IC ICM IB TJ 2/9 Parameter Max. operating junction temperature BD179 2 Electrical characteristics Electrical characteristics (Tcase = 25°C unless otherwise specified) Table 3. Electrical characteristics Symbol Max. Unit VCB = 80V 0.1 mA Emitter cut-off current (IC = 0) VEB = 5V 1 mA Collector-emitter sustaining voltage (IB = 0) IC =100mA Collector-emitter saturation voltage IC = 1A _ IB = 0.1A 0.8 V Base-emitter voltage IC = 1.5A _ _ VCE= 2V 1.3 V Collector cut-off current ICBO (IE = 0) IEBO VCEO(sus) Parameter (1) VCE(sat) (1) VBE (1) hFE DC current gain Test Conditions Min. Typ. 80 IC = 150mA _ _ VCE =2V 40 IC = 1A 15 VCE =2V V Note (1) Pulsed duration = 300 µs, duty cycle ≤1.5% 2.1 Electrical characteristic (curves) Figure 2. Safe operating area Figure 3. Derating curve 3/9 Electrical characteristics 4/9 BD179 Figure 4. DC current gain Figure 5. DC current gain Figure 6. Collector-emitter saturation voltage Figure 7. Base-emitter saturation voltage Figure 8. Base-emitter on voltage Figure 9. Resistive load switching time BD179 Electrical characteristics Figure 10. Resistive load switching time 2.2 Test circuits Figure 11. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 5/9 Package mechanical data 3 BD179 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 6/9 BD179 Package mechanical data SOT-32 (TO-126) MECHANICAL DATA DIM. mm. MIN. TYP MAX. A 2.4 2.9 B 0.64 0.88 B1 0.39 0.63 D 10.5 11.05 E 7.4 7.8 e 2.04 2.29 2.54 e1 4.07 4.58 5.08 L 15.3 P 2.9 Q Q1 16 3.2 3.8 1 1.52 H2 2.15 I 1.27 0016114E 7/9 Revision history 4 BD179 Revision history Table 4. 8/9 Revision history Date Revision Changes 01-Dec-2000 1 Initial release. 02-Jul-2007 2 Figures 2,3,4,5,6,7, 8, 9 and figure 10 have been added. BD179 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. 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