DATA SHEET
SILICON TRANSISTOR
2SC3585
MICROWAVE LOW NOISE AMPLIFIER
NPN SILICON EPITAXIAL TRANSISOR
DATA SHEET
Document No. P10361EJ4V1DS00 (4th edition)
Date Published March 1997 N
Printed in Japan
1984©
DESCRIPTION
The 2SC3585 is an NPN epitaxial silicon transistor designed for use in
low-noise and small signal amplifiers from VHF band to UHF band. The
2SC3585 features excellent power gain with very low-noise figures. The
2SC3585 employs direct nitride passivated base surface process (DNP
process) which is an NEC proprietary new fabrication technique which
provides excellent noise figures at high current values. This allows
excellent associated gain and very wide dynamic range.
FEATURES
• NF 1.8 dB TYP. @f = 2.0 GHz
• Ga 9 dB TYP. @f = 2.0 GHz
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
C)
Collector to Base Voltage V
CBO
20 V
Collector to Emitter Voltage V
CEO
10 V
Emitter to Base Voltage V
EBO
1.5 V
Collector Current I
C
35 mA
Total Power Dissipation P
T
200 mW
Junction Temperature T
j
150 C
Storage Temperature T
stg
65 to +150 C
ELECTRICAL CHARACTERISTICS (T
A
= 25
C)
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT TEST CONDITIONS
Collector Cutoff Current I
CBO
1.0 AV
CB
= 10 V, I
E
= 0
Emitter Cutoff Current I
EBO
1.0 AV
EB
= 1 V, I
C
= 0
DC Current Gain h
FE
* 50 100 250 V
CE
= 6 V, I
C
= 10 mA
Gain Bandwidth Product f
T
10 GHz V
CE
= 6 V, I
C
= 10 mA
Feed-Back Capacitance C
re
** 0.3 0.8 pF V
CB
= 10 V, I
E
= 0, f = 1.0 MHz
Insertion Power Gain S
21e
2
6.0 8.0 dB V
CE
= 6 V, I
C
= 10 mA, f = 2.0 GHz
Maximum Available Gain MAG 10 dB V
CE
= 6 V, I
C
= 10 mA, f = 2.0 GHz
Noise Figure NF 1.8 3.0 dB V
CE
= 6 V, I
C
= 5 mA, f = 2.0 GHz
* Pulse Measurement PW 350 s, Duty Cycle 2 %
** The emitter terminal and the case shall be connected to the gurad terminal of the three-terminal capacitance bridge.
h
FE
Classification
Class R43/Q * R44/R * R45/S *
Marking R43 R44 R45
h
FE
50 to 100 80 to 160 125 to 250 * Old Specification / New Specification
PACKAGE DIMENSIONS
(Units: mm)
1.5
2
1
3
Marking
PIN CONNECTIONS
1.
2.
3.
Emitter
Base
Collector
2.8±0.2
2.9±0.21.1 to 1.4
0 to 0.1
0.950.3 0.95
0.4
+0.1
−0.05
0.4
+0.1
−0.05
0.16
+0.1
−0.06
0.65
+0.1
−0.15