2SC4903 Silicon NPN Bipolar Transistor Application CMPAK VHF & UHF wide band amplifire Features 3 1 • High gain bandwidth product fT = 6 GHz typ • High gain, low noise figure PG = 12.0 dB typ, NF = 1.6 dB typ at f = 900 MHz 2 1. Emitter 2. Base 3. Collector Table 1 Absolute Maximum Ratings (Ta = 25°C) Item Symbol Ratings Unit ——————————————————————————————————————————— Collector to base voltage VCBO 20 V ——————————————————————————————————————————— Collector to emitter voltage VCEO 12 V ——————————————————————————————————————————— Emitter to base voltage VEBO 2 V ——————————————————————————————————————————— Collector current IC 30 mA ——————————————————————————————————————————— Collector power dissipation PC 100 mW ——————————————————————————————————————————— Junction temperature Tj 150 °C ——————————————————————————————————————————— Storage temperature Tstg –55 to +150 °C ——————————————————————————————————————————— 2SC4903 Table 2 Electrical Characteristics (Ta = 25°C) Item Symbol Min Typ Max Unit Test conditions ——————————————————————————————————————————— Collector cutoff current ICBO — — 10 µA VCB = 20 V, IE = 0 ——————————————————————————————— ICEO — — 1 mA VCE = 12 V, RBE = ∞ ——————————————————————————————————————————— Emitter cutoff current IEBO — — 10 µA VEB = 2 V, IC = 0 ——————————————————————————————————————————— DC current transfer ratio hFE 50 120 250 VCE = 5 V, IC = 10 mA ——————————————————————————————————————————— Output capacitance Cob — 0.6 1.0 pF VCB = 5 V, IE = 0, f = 1 MHz ——————————————————————————————————————————— Gain bandwidth product fT 4.0 6.0 — GHz VCE = 5 V, IC = 10 mA ——————————————————————————————————————————— Power gain PG 9.5 12.0 — dB VCE = 5 V, IC = 10 mA, f = 900 MHz ——————————————————————————————————————————— Noise figure NF — 1.6 3.0 dB VCE = 5 V, IC = 5 mA, f = 900 MHz ——————————————————————————————————————————— Marking for 2SC4903 is “YL–”. Attention: This is electrostatic sensitive device. 2SC4903 DC current transfer ratio vs. collector current Maximum collector power dissipation curve 200 DC Current Transfer Ratio h FE Collector Power Dissipation Pc (mW) 200 VCE = 5V 160 150 120 100 50 0 80 40 0 0.1 0.2 50 100 150 200 Ambient Temperature Ta (°C) Collector Output Capacitance Cob (pF) Gain Bandwidth Product f T (GHz) VCE = 5 V 10 8 6 4 2 0 1 2 5 10 20 Collector Current I C (mA) 50 50 Collector output capacitance vs. collector to base voltage Gain bandwidth product vs. collector current 12 0.5 1 2 5 10 20 Collector Current I C (mA) 1.0 IE = 0 f = 1 MHz 0.9 0.8 0.7 0.6 0.5 0.5 1 2 5 10 20 Collector to Base Voltage V CB (V) 2SC4903 Noise figure vs. collector current Power gain vs. collector current 20 5 VCE = 5V f = 900MHz VCE = 5V f = 900 MHz NF (dB) Power Gain PG (dB) 16 Noise Figure 12 8 4 0 1 50 20 |S21 | (dB) VCE = 5V f = 1 GHz 16 12 S 21 Parameter 3 2 1 0 2 20 5 10 Collector Current I C (mA) S21 parameter vs. collector current 8 4 0 1 4 2 5 20 10 Collector Current I C (mA) 50 1 10 5 20 2 Collector Current I C (mA) 50 2SC4903 S21 parameter vs. frequency S11 parameter vs. frequency .8 .6 1 90° 1.5 2 .4 Scale: 4 / div. 120° 60° 3 150° 4 5 .2 30° 10 .2 0 .4 .6 1 1.5 2 3 45 10 0° 180° –10 –5 –4 –3 –.2 –.4 –30° –150° –2 –.6 –.8 –1 –90° Condition: VCE = 5 V , Zo = 50 Ω 100 MHz to 1000 MHz (100 MHz step) (I C = 5 mA) (I C = 10 mA) Condition: VCE = 5 V , Zo = 50 Ω 100 MHz to 1000 MHz (100 MHz step) (I C = 5 mA) (I C = 10 mA) S22 parameter vs. frequency S12 parameter vs. frequency 90° 120° –60° –120° –1.5 Scale: 0.04 / div. .6 60° .8 1 1.5 2 .4 150° 30° 3 4 5 .2 10 0° 180° .4 .6 .8 1 .2 0 1.5 2 3 45 10 –10 –5 –4 –3 –.2 –30° –150° –.4 –120° –60° –90° Condition: VCE = 5 V , Zo = 50 Ω 100 MHz to 1000 MHz (100 MHz step) (I C = 5 mA) (I C = 10 mA) –2 –.6 –.8 –1 –1.5 Condition: VCE = 5 V , Zo = 50 Ω 100 MHz to 1000 MHz (100 MHz step) (I C = 5 mA) (I C = 10 mA) 2SC4903 Table 3 S Parameter (VCE = 5 V, IC = 5 mA, ZO = 50 Ω, Emitter common) f (MHz) S11 S21 S12 S22 ——————— ——————— ——————— ——————— MAG MAG MAG MAG ANG ANG ANG ANG ——————————————————————————————————————————— 100 0.872 –23.3 11.28 161.2 0.0266 77.9 0.956 –13.4 ——————————————————————————————————————————— 200 0.777 –43.6 10.03 144.3 0.0493 67.3 0.862 –24.4 ——————————————————————————————————————————— 300 0.672 –62.0 8.59 130.8 0.0661 60.2 0.759 –32.4 ——————————————————————————————————————————— 400 0.586 –75.7 7.36 121.0 0.0777 56.0 0.672 –37.4 ——————————————————————————————————————————— 500 0.517 –88.0 6.34 112.8 0.0866 53.6 0.604 –40.7 ——————————————————————————————————————————— 600 0.462 –98.0 5.52 106.4 0.0941 53.1 0.553 –43.0 ——————————————————————————————————————————— 700 0.417 –107.3 4.88 101.1 0.102 52.5 0.514 –44.6 ——————————————————————————————————————————— 800 0.384 –115.9 4.39 96.5 0.108 52.7 0.483 –46.0 ——————————————————————————————————————————— 900 0.359 –122.7 3.97 92.2 0.115 53.3 0.460 –46.9 ——————————————————————————————————————————— 1000 0.336 –130.8 3.63 88.5 0.121 53.4 0.441 –48.3 ——————————————————————————————————————————— Table 4 S Parameter (VCE = 5 V, IC = 10 mA, ZO = 50 Ω, Emitter common) f (MHz) S11 S21 S12 S22 ——————— ——————— ——————— ——————— MAG MAG MAG MAG ANG ANG ANG ANG ——————————————————————————————————————————— 100 0.798 –30.5 16.22 155.6 0.0254 74.9 0.921 –17.5 ——————————————————————————————————————————— 200 0.666 –56.4 13.39 136.1 0.0442 63.8 0.780 –30.3 ——————————————————————————————————————————— 300 0.550 –76.4 10.76 122.3 0.0569 58.9 0.652 –37.3 ——————————————————————————————————————————— 400 0.470 –90.8 8.80 113.0 0.0663 57.1 0.561 –41.0 ——————————————————————————————————————————— 500 0.412 –104.2 7.39 105.6 0.0741 56.5 0.500 –43.1 ——————————————————————————————————————————— 600 0.373 –114.0 6.33 100.3 0.0821 57.2 0.456 –44.1 ——————————————————————————————————————————— 700 0.345 –123.6 5.53 95.5 0.0899 57.9 0.425 –44.9 ——————————————————————————————————————————— 800 0.322 –131.5 4.91 91.6 0.0973 58.5 0.401 –45.4 ——————————————————————————————————————————— 900 0.307 –138.7 4.41 87.8 0.106 59.4 0.384 –46.0 ——————————————————————————————————————————— 1000 0.294 –145.5 4.02 84.8 0.114 59.9 0.371 –46.8 ———————————————————————————————————————————