HIT 2SC4537 Datasheet
Application
UHF / VHF wide band amplifier
Outline
CMPAK
2SC4537
Silicon NPN Epitaxial
3
1
2
1. Emitter
2. Base
3. Collector
2SC4537
Absolute Maximum Ratings (Ta = 25°C)
Item Symbol Ratings Unit
Collector to base voltage V
Collector to emitter voltage V
Emitter to base voltage V
Collector current I
Collector power dissipation P
CBO
CEO
EBO
C
C
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
V
(BR)CBO
voltage
Collector cutoff current I
Collector cutoff current I
Emitter cutoff current I
DC current transfer ratio h
CBO
CEO
EBO
FE
Collector output capacitance Cob — 1.0 1.5 pF VCB = 5 V, IE = 0,
Gain bandwidth product f
T
Power gain PG — 10 — dB VCE = 5 V, IC = 20 mA,
Noise figure NF — 1.6 — dB VCE = 5 V, IC = 5 mA,
Note: Marking is “IS–”.
15——V I
——1 µAVCB = 12 V, IE = 0
——1 µAVCE = 10 V, IE = ∞
——1 µAVEB = 1 V, IC = 0
50 120 250 — VCE = 5 V, IC = 20 mA
4.5 6.0 — GHz VCE = 5 V, IC = 20 mA
15 V
11 V
2V
50 mA
100 mW
= 10 µA, IE = 0
C
f = 1MHz
f = 900 MHz
f = 900 MHz
2
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