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SMMBT4401LT1G Datasheet(PDF) 4 Page - ON Semiconductor |
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SMMBT4401LT1G Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 7 page MMBT4401L, SMMBT4401L http://onsemi.com 4 6.0 8.0 10 0 4.0 2.0 0.1 2.0 5.0 10 20 50 1.0 0.5 0.2 0.01 0.02 0.05 100 Figure 8. Frequency Effects f, FREQUENCY (kHz) SMALL−SIGNAL CHARACTERISTICS NOISE FIGURE VCE = 10 Vdc, TA = 25°C; Bandwidth = 1.0 Hz IC = 1.0 mA, RS = 150 W IC = 500 mA, RS = 200 W IC = 100 mA, RS = 2.0 kW IC = 50 mA, RS = 4.0 kW RS = OPTIMUM RS = SOURCE RS = RESISTANCE 100k 50 100 200 500 1.0k 2.0k 5.0k 10k 20k 50k 6.0 8.0 10 0 4.0 2.0 Figure 9. Source Resistance Effects RS, SOURCE RESISTANCE (OHMS) f = 1.0 kHz IC = 50 mA IC = 100 mA IC = 500 mA IC = 1.0 mA h PARAMETERS VCE = 10 Vdc, f = 1.0 kHz, TA = 25°C This group of graphs illustrates the relationship between hfe and other “h” parameters for this series of transistors. To obtain these curves, a high−gain and a low−gain unit were selected from the MMBT4401LT1 lines, and the same units were used to develop the correspondingly numbered curves on each graph. Figure 10. Input Impedance IC, COLLECTOR CURRENT (mA) 50k 500 20k 10k 5.0k 2.0k 1.0k 0.1 0.2 0.5 0.7 1.0 2.0 3.0 10 0.3 5.0 7.0 Figure 11. Voltage Feedback Ratio IC, COLLECTOR CURRENT (mA) 0.1 0.2 0.5 0.7 1.0 2.0 3.0 10 0.3 0.2 10 Figure 12. Output Admittance IC, COLLECTOR CURRENT (mA) 100 1.0 5.0 7.0 50 20 10 5.0 2.0 7.0 5.0 3.0 2.0 1.0 0.7 0.5 0.3 0.1 0.2 0.5 0.7 1.0 2.0 3.0 10 0.3 5.0 7.0 MMBT4401LT1 UNIT 1 MMBT4401LT1 UNIT 2 MMBT4401LT1 UNIT 1 MMBT4401LT1 UNIT 2 MMBT4401LT1 UNIT 1 MMBT4401LT1 UNIT 2 |
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