2SC4537 Silicon NPN Epitaxial Application UHF / VHF wide band amplifier Outline CMPAK 3 1 2 1. Emitter 2. Base 3. Collector 2SC4537 Absolute Maximum Ratings (Ta = 25°C) Item Symbol Ratings Unit Collector to base voltage VCBO 15 V Collector to emitter voltage VCEO 11 V Emitter to base voltage VEBO 2 V Collector current IC 50 mA Collector power dissipation PC 100 mW Junction temperature Tj 150 °C Storage temperature Tstg –55 to +150 °C Electrical Characteristics (Ta = 25°C) Item Symbol Min Typ Max Unit Test conditions Collector to base breakdown voltage V(BR)CBO 15 — — V I C = 10 µA, IE = 0 Collector cutoff current I CBO — — 1 µA VCB = 12 V, IE = 0 Collector cutoff current I CEO — — 1 µA VCE = 10 V, IE = ∞ Emitter cutoff current I EBO — — 1 µA VEB = 1 V, IC = 0 DC current transfer ratio hFE 50 120 250 — VCE = 5 V, IC = 20 mA Collector output capacitance Cob — 1.0 1.5 pF VCB = 5 V, IE = 0, f = 1MHz Gain bandwidth product fT 4.5 6.0 — GHz VCE = 5 V, IC = 20 mA Power gain PG — 10 — dB VCE = 5 V, IC = 20 mA, f = 900 MHz Noise figure NF — 1.6 — dB VCE = 5 V, IC = 5 mA, f = 900 MHz Note: Marking is “IS–”. 2 2SC4537 Typical Output Characteristics 20 150 Collector Current IC (mA) Collector Power Dissipation Pc (mW) Maximum Collector Dissipation Curve 100 50 0 Pulse 16 125 100 12 75 8 50 IB = 25 µA 4 0 50 100 150 Ambient Temperature Ta (°C) 2 4 6 8 10 Collector to Emitter Voltage VCE (V) DC Current Transfer Ratio vs. Collector Current Gain Bandwidth Product vs. Collector Current 200 10 Gain Bandwidth Product fT (GHz) DC Current Transfer Ratio hFE 150 VCE = 5 V 160 120 80 40 VCE = 5 V 8 6 4 2 0 0 1 2 5 10 20 Collector Current IC (mA) 50 1 2 5 10 20 Collector Current IC (mA) 50 3 2SC4537 Power Gain vs. Collector Current 20 2.0 f = 1 MHz IE = 0 1.6 1.2 0.8 Power Gain PG (dB) Collector Output Capacitance Cob (pF) Collector Output Capacitance vs. Collector to Base Voltage VCE = 5 V f = 900 MHz 16 12 8 4 0.4 0 0 1 2 5 10 20 50 Collector to Base Voltage VCB (V) 1 2 5 10 20 Collector Current IC (mA) Noise Figure vs. Collector Current Noise Figure NF (dB) 5 VCE = 5 V f = 900 MHz 4 3 2 1 0 1 4 2 5 10 20 Collector Current IC (mA) 50 50 0.1 0.3 +– 0.05 0.2 0.65 0.65 1.3 ± 0.2 0.9 ± 0.1 0.1 0.3 +– 0.05 0.1 0.16 +– 0.06 0 – 0.1 0.425 1.25 ± 0.1 0.1 0.3 +– 0.05 2.1 ± 0.3 2.0 ± 0.2 0.425 Unit: mm Hitachi Code JEDEC EIAJ Weight (reference value) CMPAK — Conforms 0.006 g Cautions 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. 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