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2SC4791

Hitachi Semiconductor
Part Number 2SC4791
Manufacturer Hitachi Semiconductor
Description NPN TRANSISTOR
Published Apr 3, 2005
Detailed Description 2SC4791 Silicon NPN Epitaxial Application VHF / UHF wide band amplifier Features • High gain bandwidth product fT = 10...
Datasheet PDF File 2SC4791 PDF File

2SC4791
2SC4791

Overview
2SC4791 Silicon NPN Epitaxial Application VHF / UHF wide band amplifier Features • High gain bandwidth product fT = 10 GHz Typ.
• High gain, low noise figure PG = 15.
5 dB Typ, NF = 1.
2 dB Typ at f = 900 MHz Outline MPAK-4 2 3 1 4 1.
Collector 2.
Emitter 3.
Base 4.
Emitter 2SC4791 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 Ratings 15 8 1.
5 20 150 150 –55 to +150 Unit V V V mA mW °C °C Electrical Characteristics (Ta = 25°C) Item Collector cutoff current Symbol I CBO I CEO Emitter cutoff current DC current transfer ratio Collector output capacitance Gain bandwidth product Power gain Noise figure Note: Marking is “YA–”.
I EBO hFE Cob fT PG NF Min — — — 50 — 7.
0 12.
5 — Typ — — — 120 0.
4 10.
0 15.
5 1.
2 Max 10 1 10 250 0.
75 — — 2.
5 pF GHz dB dB Unit µA mA µA Test conditions VCB = 15 V, IE = 0 VCE = 8 V, RBE = ∞ VEB = 1.
5 V, IC = 0 VCE = 5 V, IC = 10 mA VCB = 5 V, IE = 0, f = 1 MHz VCE = 5 V, IC = 10 mA VCE = 5 V, IC = 10 mA, f = 900 MHz VCE = 5 V, IC = 5 mA, f = 900 MHz Attention: This is electrostatic sensitive device.
2 2SC4791 DC Current Transfer Ratio vs.
Collector Current 200 Collector Power Dissipation PC (mW) 150 DC Current Transfer Ratio h FE Maximum Collector Dissipation Curve 160 VCE = 5V 100 120 80 VCE = 1V 50 40 0 50 100 Ambient Temperature Ta (°C) 150 0 0.
1 0.
2 0.
5 1 2 5 10 20 50 Collector Current I C (mA) Gain Bandwidth Product vs.
Collector Current f T (GHz) 12 10 8 6 VCE = 1 V 4 2 0 1 2 5 10 20 Collector Current I C (mA) 50 VCE = 5 V Collector Output Capacitance Cob (pF) 0.
56 Collector Output Capacitance vs.
Collector to Base Voltage IE = 0 0.
52 f = 1 MHz Gain Bandwidth Product 0.
48 0.
44 0.
40 0.
36 1 2 5 10 20 0.
5 Collector to Base Voltage VCB (V) 3 2SC4791 Power Gain vs.
Collector Current 20 f = 900 MHz Noise Figure NF (dB...


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