2SC1345

2SC1344, 2SC1345 Silicon NPN Epitaxial Application Low frequency low noise amplifier Outline TO-92 (1) 1. Emitter 2. Collector 3. Base 3 2 1 2SC1344, 2SC1345 Absolute Maximum Ratings (Ta = 25°C) Item Collector to base voltage Collector to emitter voltage Emitter to base voltage Collector current Collector power dissipation Junction temperature Storage temperature Symbol VCBO VCEO VEBO IC PC Tj Tstg 2SC1344 30 30 5 100 200 150 –55 to +150 2SC1345 55 50 5 100 200 150 –55 to +150 Unit V V V mA mW °C °C Electrical Characteristics (Ta = 25°C) 2SC1344 Item Collector to base breakdown voltage Collector to emitter breakdown voltage Emitter to base breakdown voltage Collector cutoff current Emitter cutoff current Symbol V(BR)CBO V(BR)CEO V(BR)EBO I CBO I EBO 1 2SC1345 Max — — — 0.5 0.5 Min 55 50 5 — — Typ — — — — — — — — 230 — — — Max — — — 0.5 0.5 1200 0.75 0.5 — 3.5 8 1 V V MHz pF dB dB Unit V V V µA µA Test conditions I C = –10 µA, IE = 0 I C = 1 mA, RBE = ∞ I E = 10 µA, IC = 0 VCB =18 V, IE = 0 VCB = 2 V, IC = 0 VCE = 12 V, IC = 2 mA VCE = 12 V, IC = 2 mA I C = 10 mA, IB = 1 mA VCE = 12 V, IC = 2 mA VCB = 10 V, IE = 0, f = 1 MHz VCE = 6 V, IC = 0.1 mA, f = 10 Hz, Rg = 10 kΩ VCE = 6 V, IC = 0.1 mA, f = 1 kHz, Rg = 10 kΩ Min 30 30 5 — — 250 — — — — — — Typ — — — — — — — — 230 — — — DC current transfer ratio hFE* Base to emitter voltage VBE Collector to emitter saturation voltage 1200 250 0.75 0.5 — 3.5 8 1 — — — — — — VCE(sat) Gain bandwidth product f T Collector output capacitance Noise figure Cob NF Note: D 1. The 2SC1344 and 2SC1345 are grouped by h FE as follows. E 400 to 800 F 600 to 1200 250 to 500 2 2SC1344, 2SC1345 Small Signal h Parameters (VCE = 5V, IC = 0.1 mA, f = 270 Hz, Ta = 25°C, Emitter common) Item Input impedance Voltage feedback ratio Current transfer ratio Output admittance Symbol hie hre hfe hoe D 110 9.5 340 12.0 E 170 14.5 540 12.5 F 240 16 825 13.5 µS Unit kΩ × 10 –4 Maximum Collector Dissipation Curve Collector Power Dissipation PC (mW) 250 10 Collector Current IC (mA) 200 8 150 6 100 4 2 50 Typical Output Characteristics P C= 26 20 0m 24 W 22 20 18 16 14 12 10 8 6 4 2 µA IB = 0 4 8 12 16 20 Collector to Emitter Voltage VCE (V) 24 0 100 150 50 Ambient Temperature Ta (°C) 0 DC Current Transfer Ratio vs. Collector Current 700 DC Current Transfer Ratio hFE VCE = 12 V 600 Collector Current IC (mA) 4 5 Typical Transfer Characteristics VCE = 12 V 500 T 7 a= 5°C 3 400 25 2 300 1 200 0.01 0.02 0.05 0.1 0.2 0.5 1.0 2 5 10 20 Collector Current IC (mA) 50 0 0.6 0.8 1.0 0.2 0.4 Base to Emitter Voltage VBE (V) 3 2SC1344, 2SC1345 Base to Emitter Voltage vs. Ambient Temperature Collector Output Capacitance Cob (pF) 0.9 Base to Emitter Voltage VBE (V) VCE = 12 V IC = 2 mA Collector Output Capacitance vs. Collector to Base Voltage 10 IE = 0 f= 1 MHz 5 0.8 0.7 0.6 2 0.5 0.4 –20 1 1 5 10 2 Collector to Base Voltage VCB (V) 0 20 40 60 Ambient Temperature Ta (°C) 80 Emitter Input Capacitance vs. Emitter to Base Voltage 10 Emitter Input Capacitance Cie (pF) Signal Source Resistance Rg (kΩ) IC = 0 f= 1 MHz 5 100 Contours of Constant Noise Figure 1 dB 10 dB 8 dB 6 dB 4 dB 2 dB 1 dB 2 30 2 dB 4d 10 B 6d B 38 dB 10 dB 1.0 0.3 0.1 0.001 0.003 0.01 VCE = 6 V f = 10 Hz 1 1 5 2 Emitter to Base Voltage VEB (V) 10 0.03 0.1 0.3 1.0 3.0 Collector Current IC (mA) 4 2SC1344, 2SC1345 Contours of Constant Noise Figure 100 Signal Source Resistance Rg (kΩ) Signal Source Resistance Rg (kΩ) VCE = 6 V f = 120 Hz 100 30 10 VCE = 6 V f = 1 kHz Contours of Constant Noise Figure 10 8 dB 6 dB dB dB 8 dB 6 dB 4 30 4 2 10 4 2 dB dB 1 2 d 6B 8 dB dB dB 1 3 1 dB dB dB dB 1 dB 3 1.0 0.3 2 1.0 0.3 d 6B d 8B 10 dB dB 4 dB 0.1 0.001 0.003 0.01 0.03 0.1 0.3 1.0 3.0 0.1 0.001 0.003 0.01 0.03 0.1 0.3 1.0 3.0 Collector Current IC (mA) Collector Current IC (mA) Noise Figure vs. Frequency 12 10 Noise Figure NF (dB) 8 6 4 2 0 10 20 50 100 200 500 1k Frequency f (Hz) VCE = 6 V IC = 0.1 mA Rg = 10 kΩ 10 8 Noise Figure vs. Collector to Emitter Voltage Noise Figure NF (dB) IC = 0.1 mA f = 10 Hz Rg = 10 kΩ 6 4 2 0 1 2 5 10 20 50 Collector to Emitter Voltage VCE (V) 5 2SC1344, 2SC1345 Noise Figure vs. Collector to Emitter Voltage 10 8 IC = 0.1 mA f = 120 Hz Rg = 10 kΩ 10 8 IC = 0.1 mA f = 1 kHz Rg = 10 kΩ Noise Figure vs. Collector to Emitter Voltage Noise Figure NF (dB) Noise Figure NF (dB) 6 6 4 4 2 2 0 1 2 5 10 20 50 Collector to Emitter Voltage VCE (V) 0 1 2 5 10 20 50 Collector to Emitter Voltage VCE (V) 6 Unit: mm 4.8 ± 0.3 3.8 ± 0.3 2.3 Max 0.5 ± 0.1 0.7 0.60 Max 12.7 Min 5.0 ± 0.2 0.5 1.27 2.54 Hitachi Code JEDEC EIAJ Weight (reference value) TO-92 (1) Conforms Conforms 0.25 g Cautions 1. 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