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BC557B Datasheet(PDF) 2 Page - ON Semiconductor |
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BC557B Datasheet(HTML) 2 Page - ON Semiconductor |
2 / 6 page BC556,B BC557A,B,C BC558B 2 Motorola Small–Signal Transistors, FETs and Diodes Device Data ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) (Continued) Characteristic Symbol Min Typ Max Unit ON CHARACTERISTICS DC Current Gain (IC = –10 µAdc, VCE = –5.0 V) BC557A BC556B/557B/558B BC557C (IC = –2.0 mAdc, VCE = –5.0 V) BC556 BC557 BC558 BC557A BC556B/557B/558B BC557C (IC = –100 mAdc, VCE = –5.0 V) BC557A BC556B/557B/558B BC557C hFE — — — 120 120 120 120 180 420 — — — 90 150 270 — — — 170 290 500 120 180 300 — — — 500 800 800 220 460 800 — — — — Collector – Emitter Saturation Voltage (IC = –10 mAdc, IB = –0.5 mAdc) (IC = –10 mAdc, IB = see Note 1) (IC = –100 mAdc, IB = –5.0 mAdc) VCE(sat) — — — –0.075 –0.3 –0.25 –0.3 –0.6 –0.65 V Base – Emitter Saturation Voltage (IC = –10 mAdc, IB = –0.5 mAdc) (IC = –100 mAdc, IB = –5.0 mAdc) VBE(sat) — — –0.7 –1.0 — — V Base–Emitter On Voltage (IC = –2.0 mAdc, VCE = –5.0 Vdc) (IC = –10 mAdc, VCE = –5.0 Vdc) VBE(on) –0.55 — –0.62 –0.7 –0.7 –0.82 V SMALL–SIGNAL CHARACTERISTICS Current – Gain — Bandwidth Product (IC = –10 mA, VCE = –5.0 V, f = 100 MHz) BC556 BC557 BC558 fT — — — 280 320 360 — — — MHz Output Capacitance (VCB = –10 V, IC = 0, f = 1.0 MHz) Cob — 3.0 6.0 pF Noise Figure (IC = –0.2 mAdc, VCE = –5.0 V, BC556 RS = 2.0 kW, f = 1.0 kHz, ∆f = 200 Hz) BC557 BC558 NF — — — 2.0 2.0 2.0 10 10 10 dB Small–Signal Current Gain (IC = –2.0 mAdc, VCE = –5.0 V, f = 1.0 kHz) BC556 BC557/558 BC557A BC556B/557B/558B BC557C hfe 125 125 125 240 450 — — 220 330 600 500 900 260 500 900 — Note 1: IC = –10 mAdc on the constant base current characteristics, which yields the point IC = –11 mAdc, VCE = –1.0 V. |
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