2N4921G, 2N4922G, 2N4923G 40 TTS) A 30 TION (W A 20 10 , POWER DISSIP DP 025 50 75 100 125 150 TC, CASE TEMPERATURE (°C) Figure 1. Power Derating Safe Area Curves are indicated by Figure 5. All limits are applicable and must be observed. APPROX TURN-ON PULSE +11 V t1 VCC V RC in Vin R V B BE(off) Cjd<<Ceb t3 -4.0 V APPROX SCOPE +11 V t1 ≤ 15 ns 100 < t2 ≤ 500 ms Vin t3 ≤ 15 ns APPROX 9.0 V DUTY CYCLE ≈ 2.0% t2 RB and RC varied to TURN-OFF PULSE obtain desired current levels Figure 2. Switching Time Equivalent Circuit 5.0 VCC = 30 V I 3.0 C/IB = 10, UNLESS NOTED IC/IB = 20 TJ = 25°C 2.0 TJ = 150°C VCC = 60 V 1.0 (s)μ 0.7 0.5 tr V t, TIME CC = 30 V 0.3 td 0.2 VCC = 60 V VBE(off) = 2.0 V 0.1 VCC = 30 V 0.07 VBE(off) = 0 0.0510 20 30 50 70 100 200 300 500 700 1000 IC, COLLECTOR CURRENT (mA) Figure 3. Turn−On Timewww.onsemi.com3