BD237G (NPN), BD234G, BD238G (PNP) Plastic Medium Power Bipolar Transistors Designed for use in 5.0 to 10W audio amplifiers and drivers utilizing complementary or quasi complementary circuits. BD237G (NPN), BD234G, BD238G (PNP) ELECTRICAL CHARACTERISTICS (T = 25 C unless otherwise noted) C Characteristic Symbol Min Max Unit CollectorEmitter Sustaining Voltage (Note 1) V Vdc (BR)CEO (I = 0.1 Adc, I = 0) C B BD237G, BD238G 80 BD234G 45 Collector Cutoff Current I mAdc CBO (V = 100 Vdc, I = 0) CB E BD237G, BD238G 0.1 (V = 60 Vdc, I = 0) CB E BD234G 0.1 Emitter Cutoff Current I mAdc EBO (V = 5.0 Vdc, I = 0) 1.0 BE C DC Current Gain (I = 0.15 A, V = 2.0 V) C CE h 40 FE1 (I = 1.0 A, V = 2.0 V) C CE h 25 FE2 CollectorEmitter Saturation Voltage (Note 1) V Vdc CE(sat) (I = 1.0 Adc, I = 0.1 Adc) 0.6 C B BaseEmitter On Voltage (Note 1) V Vdc BE(on) (I = 1.0 Adc, V = 2.0 Vdc) 1.3 C CE CurrentGain Bandwidth Product f MHz T (I = 250 mAdc, V = 10 Vdc, f = 1.0 MHz) 3.0 C CE Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 1. Pulse Test: Pulse Width 300 s, Duty Cycle 2.0%. 10 The Safe Operating Area Curves indicate I V limits C CE 100 s below which the device will not enter secondary breakdown. Collector load lines for specific circuits must fall within the 1 ms 3 applicable Safe Area to avoid causing a catastrophic failure. 5 ms To insure operation below the maximum T , J T = 150C dc J powertemperature derating must be observed for both 1 steady state and pulse power conditions. 0.3 BD236 BD237 0.1 1 3 10 30 100 V , COLLECTOR-EMITTER VOLTAGE (VOLTS) CE Figure 1. Active Region Safe Operating Area