2SC4992 Silicon NPN Bipolar Transistor Application VHF & UHF wide band amplifire CMPAK–4 Features 4 • High gain bandwidth product fT = 9.5 GHz typ • High gain, low noise figure PG = 15.0 dB typ, NF = 1.2 dB typ at f = 900 MHz 3 1 2 1. Collector 2. Emitter 3. Base 4. Emitter Table 1 Absolute Maximum Ratings (Ta = 25°C) Item Symbol Ratings Unit ——————————————————————————————————————————— Collector to base voltage VCBO 15 V ——————————————————————————————————————————— Collector to emitter voltage VCEO 9 V ——————————————————————————————————————————— Emitter to base voltage VEBO 1.5 V ——————————————————————————————————————————— Collector current IC 50 mA ——————————————————————————————————————————— Collector power dissipation PC 100 mW ——————————————————————————————————————————— Junction temperature Tj 150 °C ——————————————————————————————————————————— Storage temperature Tstg –55 to +150 °C ——————————————————————————————————————————— 2SC4992 Table 2 Electrical Characteristics (Ta = 25°C) Item Symbol Min Typ Max Unit Test conditions ——————————————————————————————————————————— Collector to base breakdown voltage V(BR)CBO 15 — — V IC = 10 µA, IE=0 ——————————————————————————————————————————— Collector cutoff current ICBO — — 1 µA VCB = 12 V, IE = 0 ——————————————————————————————— ICEO — — 1 mA VCE = 9 V, RBE = ∞ ——————————————————————————————————————————— Emitter cutoff current IEBO — — 10 µA VEB = 1.5 V, IC = 0 ——————————————————————————————————————————— DC current transfer ratio hFE 50 120 250 VCE = 5 V, IC = 20 mA ——————————————————————————————————————————— Output capacitance Cob — 8.5 1.3 pF VCB = 5 V, IE = 0, f = 1 MHz ——————————————————————————————————————————— Gain bandwidth product fT 6.5 9.5 — GHz VCE = 5 V, IC = 20 mA ——————————————————————————————————————————— Power gain PG 12 15 — dB VCE = 5 V, IC = 20 mA, f = 900 MHz ——————————————————————————————————————————— Noise figure NF — 1.2 2.5 dB VCE = 5 V, IC = 5 mA, f = 900 MHz ——————————————————————————————————————————— Note: Marking of 2SC4992 is "YR–". Attention: This device is very sensitive to electro static discharge. It is recommended to adop appropriate cautions when handling this transistor. 2SC4992 DC current transfer ratio vs. collector current 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 50 100 150 Ambient Temperature Ta (°C) 80 40 0 0.1 0.2 200 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) 1.6 IE = 0 f = 1 MHz 1.4 1.2 1.0 0.8 0.6 0.5 1 2 5 10 20 Collector to Base Voltage V CB (V) 2SC4992 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 3 2 1 0 0 1 2 5 10 20 Collector Current I C (mA) 50 S21 parameter vs. collector current 20 VCE = 5V f = 1 GHz |S21 | 16 12 S 21 Parameter 4 8 4 0 1 2 5 10 20 Collector Current I C (mA) 50 1 5 10 20 2 Collector Current I C (mA) 50 2SC4992 S21 parameter vs. frequency S11 parameter vs. frequency .8 1 90° 1.5 .6 Scale: 5 / div. 60° 120° 2 .4 3 4 5 .2 30° 150° 10 .2 0 .4 .6 .8 1 1.5 2 3 45 10 180° 0° –10 –5 –4 –.2 –.4 –30° –150° –3 –2 –.6 –.8 –1 –90° Condition: V CE = 5 V , Zo = 50 Ω 200 to 2000 MHz (200 MHz step) (I C = 5 mA) (I C = 20 mA) Condition: V CE = 5 V , Zo = 50 Ω 200 to 2000 MHz (200 MHz step) (I C = 5 mA) (I C = 20 mA) S22 parameter vs. frequency S12 parameter vs. frequency 90° Scale: 0.04 / div. .8 1 .6 60° 120° –60° –120° –1.5 1.5 2 .4 3 4 5 30° 150° .2 10 180° 0° .2 0 .4 .6 .8 1 1.5 2 3 45 10 –10 –5 –4 –.2 –30° –150° –3 –.4 –60° –120° –90° Condition: V CE = 5 V , Zo = 50 Ω 200 to 2000 MHz (200 MHz step) (I C = 5 mA) (I C = 20 mA) –2 –.6 –.8 –1 –1.5 Condition: V CE = 5 V , Zo = 50 Ω 200 to 2000 MHz (200 MHz step) (I C = 5 mA) (I C = 20 mA) 2SC4992 Table 3 S Parameter (VCE = 5 V, IC = 5 mA, ZO = 50 Ω) f (MHz) S11 S21 S12 S22 ——————— ——————— ——————— ——————— MAG MAG MAG MAG ANG ANG ANG ANG ——————————————————————————————————————————— 200 0.766 –69.4 12.35 139.0 0.0615 55.6 0.788 –40.8 ——————————————————————————————————————————— 400 0.677 –110.8 8.61 116.9 0.0848 40.5 0.561 –62.7 ——————————————————————————————————————————— 600 0.642 –136.3 6.33 103.9 0.0942 33.8 0.426 –75.2 ——————————————————————————————————————————— 800 0.632 –152.6 4.99 95.2 0.0989 31.6 0.347 –84.1 ——————————————————————————————————————————— 1000 0.623 –165.0 4.05 88.6 0.103 31.2 0.300 –91.0 ——————————————————————————————————————————— 1200 0.626 –174.6 3.44 82.8 0.106 32.0 0.268 –97.0 ——————————————————————————————————————————— 1400 0.638 177.5 2.98 78.1 0.110 33.3 0.252 –101.9 ——————————————————————————————————————————— 1600 0.646 170.2 2.64 73.4 0.114 34.7 0.240 –107.1 ——————————————————————————————————————————— 1800 0.656 164.7 2.37 69.4 0.117 36.2 0.234 –112.2 ——————————————————————————————————————————— 2000 0.669 158.7 2.15 65.5 0.121 38.3 0.230 –117.3 ——————————————————————————————————————————— Table 4 S Parameter (VCE = 5 V, IC = 20 mA, ZO = 50 Ω) f (MHz) S11 S21 S12 S22 ——————— ——————— ——————— ——————— MAG MAG MAG MAG ANG ANG ANG ANG ——————————————————————————————————————————— 200 0.617 –124.7 21.51 117.9 0.0350 46.4 0.513 –75.9 ——————————————————————————————————————————— 400 0.632 –156.1 12.18 101.2 0.0435 44.4 0.323 –103.8 ——————————————————————————————————————————— 600 0.637 –170.6 8.37 93.2 0.0507 48.4 0.253 –120.6 ——————————————————————————————————————————— 800 0.645 179.9 6.39 87.7 0.0586 52.4 0.222 –132.7 ——————————————————————————————————————————— 1000 0.654 172.5 5.13 83.1 0.0684 55.9 0.206 –142.0 ——————————————————————————————————————————— 1200 0.659 166.5 4.33 79.5 0.0770 58.0 0.199 –149.0 ——————————————————————————————————————————— 1400 0.671 160.5 3.75 75.7 0.0875 60.2 0.196 –154.8 ——————————————————————————————————————————— 1600 0.681 155.2 3.30 72.3 0.0980 60.9 0.195 –159.5 ——————————————————————————————————————————— 1800 0.685 150.8 2.96 69.1 0.108 61.6 0.197 –164.1 ——————————————————————————————————————————— 2000 0.702 146.7 2.69 66.3 0.118 62.6 0.199 –168.1 ———————————————————————————————————————————