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BC487B Datasheet(PDF) 3 Page - ON Semiconductor |
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BC487B Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 6 page BC487, BC487B http://onsemi.com 3 Figure 2. Current−Gain − Bandwidth Product IC, COLLECTOR CURRENT (mA) 200 70 50 30 20 10 7.0 5.0 3.0 2.0 300 200 100 70 50 30 VCE = 2.0 V TJ = 25°C Figure 3. Capacitance VR, REVERSE VOLTAGE (VOLTS) 100 50 20 10 5.0 2.0 1.0 0.5 0.2 0.1 80 60 40 20 10 4.0 TJ = 25°C Cobo Cibo 8.0 Figure 4. Switching Time IC, COLLECTOR CURRENT (mA) 500 50 30 20 10 7.0 5.0 1.0 k VCC = 40 V IC/IB = 10 IB1 = IB2 TJ = 25°C 700 500 300 200 100 70 50 30 20 10 ts tf tr td @ VBE(off) = 0.5 V 100 6.0 200 100 70 300 Figure 5. Thermal Response t, TIME (ms) 1.0 0.01 0.02 0.03 0.05 0.07 0.1 0.2 0.3 0.5 0.7 1.0 2.0 5.0 10 20 50 100 200 500 1.0k 2.0k 5.0k 10k 20k 50k 100k D = 0.5 0.2 0.1 0.02 0.01 SINGLE PULSE DUTY CYCLE, D = t1/t2 D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 (SEE AN−469) TJ(pk) − TC = P(pk) ZqJC(t) TJ(pk) − TA = P(pk) ZqJA(t) t1 t2 P(pk) ZqJC(t) = r(t) • RqJC ZqJA(t) = r(t) • RqJA SINGLE PULSE |
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