BD 15/ BD 158 BD 159 PLASTIC for High Reliability MEDIUM POWER NPN SILICON TRANSISTOR @ Suitable for Transformertess, Line-Operated Equipment ... designed for power output stages for television, radio, phonograph and other consumer product applications. @ Thermopad Construction Provides High Power Dissipation Rating 0.5 AMPERE POWER TRANSISTOR NPN SILICON 250-300-350 VOLTS 20 WATTS *MAXIMUM RATINGS HARDWARE AVAILABLE: 1. MICA WASHER 14B 52600 FO3 2. LOCK WASHER04A 52200 FOI Rating Symbol [BD 157 /BD 158 IBD 159 | Unit Collector-Emitter Voltage VcEO 250 300 350 Vde Collector-Base Voltage Ves 275 325 375 Vde Emitter-Base Voltage Ves 50 - Vde Collector Current Continuous lc 05 Adc Peak 1.0 ~ Base Current \g - 0.25 Adc Total Device Dissipation @ Tc = 25C Po 20 Watts Derate above 25C 0.16 w/c Operating and Storage Junction TyTstg | * -65 to +150 = % Ternperature Range *THERMAL CHARACTERISTICS Characteristic Symbol Max Unit Thermal Resistance, Junction to Case 8Jc 6.25 c/w ELECTRICAL CHARACTERISTICS (Tc = 25C uniess otherwise noted) [ Characteristic | Symbol | Type | Min | Max | Unit | OFF CHARACTERISTICS Collector-Emitter Sustaining Voitage JBV CEO gO 423 250 > Vdc (ic = 1.0 mAdc, Ip = 0) BD 159] 350 Collector Cutoff Current 'cBo - 100 wAde {At rated voltage) Emitter Cutoff Current lEBo - 100 uAdc (Veg = 5.0 Vde, Ic = 0) ON CHARACTERISTICS DC Current Gain hee 30 240 - (ig = 50 mMAdc, Vcg = 10 Vdc) jay .86 oS 3.81 NOM 3.76 NOM 2.92 DIA. THRU y 3 STYLE 1 Pin 1. Emitter 2. Collector 3. Base When mounting the device, torque not to exceed 0.07 m-kg. ii lead bending is required, use suitable clamps or other supports between transistor case and point of bend. Atl dimensions in millimeters CASE 77 BD 157 BD 158 BD 159 Pp, POWER DISSIPATION (WATTS) Ic, COLLECTOR CURRENT (AMPS) hee. OC CURRENT GAIN FIGURE 1 POWER TEMPERATURE DERATING CURVE 25 20 19 0.7 05 0.3 0.2 0.1 6.07 0.05 0.03 0.02 0.01 40 60 20 40 60 80 100 420 140 160 Tc, CASE TEMPERATURE (C} FIGURE 2 ON VOLTAGES Vee @ Ic/tg = 10 VBE @Vce=10V V, VOLTAGE (VOLTS) I/Ig = 10 Ty = +25C Ic/lp = 5.0 10 20 30 50 160 200 300 500 ic, COLLECTOR CURRENT (mA} FIGURE 3 DC SAFE OPERATING AREA 500 ps 1.0 ms Ty = 150C am OC THERMAL LIMITATION AT Tr = 259 SECONDARY BREAKDOWN LIMITATION 10 20 40 60 190 200 300 Voce. COLLECTOR-EMITTER VOLTAGE (VOLTS) FIGURE 4 Ty = 150C +100C The Safe Operating Area Curves indicate |[Vcg limits below which the device will not enter secondary breakdown. Coilector load fines for specific circuits must fall within the applicable Safe Area to avoid causing a catastrophic failure. To insure operation below the maximum Tj, power-temperature derating must be ob- served for both steady state and puise power conditions. CURRENT GAIN 20 30 50 70 100 200 300 500 ic, COLLECTOR CURRENT (mAdc)