HITACHI 2SC1345K User Manual
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Application
Low frequency low noise amplifier
Outline
2SC1345(K)
Silicon NPN Epitaxial
2SC1345 (K)
2
Absolute Maximum Ratings (Ta = 25°C)
Item Symbol Ratings Unit
Collector to base voltage V
CBO
55 V
Collector to emitter voltage V
CEO
50 V
Emitter to base voltage V
EBO
5 V
Collector current I
C
100 mA
Collector power dissipation P
C
200 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
Collector to emitter breakdown
voltage
Emitter to base breakdown
voltage
Collector cutoff current I
Emitter cutoff current I
DC current transfer ratio hFE*
Base to emitter voltage V
Collector to emitter saturation
voltage
Collector output capacitance Cob — 2.3 3.5 pF VCB = 10 V, IE = 0, f = 1 MHz
Gain bandwidth product f
Noise figure NF — — 8 dB VCE = 6 V, IC = 0.1 mA,
Note: 1. The 2SC1345(K) is grouped by hFE as follows.
D E F
250 to 500 400 to 800 600 to 1200
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
CBO
EBO
BE
V
CE(sat)
T
55 — — V IC = 10 µA, IE = 0
50 — — V IC = 1 mA, RBE = ∞
5 — — V IE = 10 µA, IC = 0
— — 0.5 µA V
— — 0.5 µA V
1
250 — 1200 V
= 18 V, IE = 0
CB
= 2 V, IC = 0
EB
= 12 V, IC = 2 mA
CE
— — 0.75 V VCE = 12 V, IC = 2 mA
— — 0.5 V IC = 10 mA, IB = 1 mA
— 230 — MHz VCE = 12 V, IC = 2 mA
f = 10 Hz, Rg = 10 kΩ
— — 1 dB VCE = 6 V, IC = 0.1 mA,
f = 1 kHz, Rg = 10 kΩ
2SC1345 (K)
3
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