DATA SHEET
SILICON TRANSISTOR
2SC4956
HIGH FREQUENCY LOW NOISE AMPLIFIER
NPN SILICON EPITAXIAL TRANSISTOR
4 PINS MINI MOLD
FEATURES
• Low Noise, High Gain
• Low Voltage Operation
• Low Feedback Capacitance
C
re
= 0.20 pF TYP.
0.4
+0.1
–0.05
0.4
+0.1
–0.05
3
4
5˚
2.8
+0.2
–0.3
1.5
+0.2
–0.1
PACKAGE DIMENSIONS
in millimeters
ORDERING INFORMATION
PART
NUMBER
2SC4956-T1
3 Kpcs/Reel.
Embossed tape 8 mm wide.
Pin3 (Base), Pin4 (Emitter) face to perforation
side of the tape.
1
0.6
+0.1
–0.05
5˚
1.1
+0.2
–0.1
2SC4956-T2
3 Kpcs/Reel.
5˚
0 to 0.1
5˚
*
Please contact with responsible NEC person, if you require evaluation
sample. Unit sample quantity shall be 50 pcs. (Part No.: 2SC4956)
PIN CONNECTIONS
ABSOLUTE MAXIMUM RATINGS (T
A
= 25 ˚C)
Collector to Base Voltage
Collector to Emitter Voltage
Emitter to Base Voltage
Collector Current
Total Power Dissipation
Junction Temperature
Storage Temperature
V
CBO
V
CEO
V
EBO
I
C
P
T
T
j
T
stg
9
6
2
10
60
150
–65 to +150
V
V
V
mA
mW
˚C
˚C
1.
2.
3.
4.
Collector
Emitter
Base
Emitter
The information in this document is subject to change without notice.
Caution;
Electrostatic Sensitive Device.
Document No. P10378EJ2V0DS00 (2nd edition)
(Previous No. TD-2407)
Date Published July 1995 P
Printed in Japan
©
0.16
+0.1
–0.06
Embossed tape 8 mm wide.
Pin1 (Collector), Pin2 (Emitter) face to perfora-
tion side of the tape.
0.8
0.4
+0.1
–0.05
(1.9)
QUANTITY
PACKING STYLE
2.9 ±0.2
(1.8)
0.85 0.95
2
1993
2SC4956
ELECTRICAL CHARACTERISTICS (T
A
= 25 ˚C)
CHARACTERISTIC
Collector Cutoff Current
Emitter Cutoff Current
DC Current Gain
Gain Bandwidth Product
Feed back Capacitance
Insertion Power Gain
Noise Figure
SYMBOL
I
CBO
I
EBO
h
FE
f
T
C
re
|S
21e
|
2
NF
9
75
12
0.2
11
2.5
4.0
0.4
MIN.
TYP.
MAX.
0.1
0.1
150
GHz
pF
dB
dB
UNIT
TEST CONDITION
V
CB
= 5 V, I
E
= 0
V
EB
= 1 V, I
C
= 0
V
CE
= 3 V, I
C
= 5 mA*
1
V
CE
= 3 V, I
C
= 5 mA, f = 2.0 GHz
V
CB
= 3 V, I
E
= 0, f = 1 MHz*
2
V
CE
= 3 V, I
C
= 5 mA, f = 2.0 GHz
V
CE
= 3 V, I
C
= 3 mA, f = 2.0 GHz
µ
A
µ
A
*1
*2
Pulse Measurement; PW
≤
350
µ
s, Duty Cycle
≤
2 % Pulsed.
Measured with 3 terminals bridge, Emitter and Case should be grounded.
h
FE
Classification
Rank
Marking
h
FE
T82
T82
75 to 150
TYPICAL CHARACTERISTICS (T
A
= 25 ˚C)
TOTAL POWER DISSIPATION
vs. AMBIENT TEMPERATURE
50
P
T
– Total Power Dissipation – mW
COLLECTOR CURRENT
vs. BASE TO EMITTER VOLTAGE
V
CE
= 3 V
Free Air
200
I
C
– Collector Current – mA
40
30
100
60 mW
20
10
0
50
100
150
0
0.5
V
BE
– Base to Emitter Voltage – V
1
T
A
– Ambient Temperature – ˚C
2
2SC4956
COLLECTOR CURRENT
vs. COLLECTOR TO EMITTER VOLTAGE
40
I
C
– Collector Current – mA
200
DC CURRENT GAIN
vs. COLLECTOR CURRENT
30
20
500
µ
A
400
µ
A
300
µ
A
200
µ
A
I
B
= 100
µ
A
h
FE
– DC Current Gain
100
V
CE
= 3 V
5V
10
0
2
4
6
0
0.1
0.5 1
5 10
50 100
V
CE
– Collector to Emitter Voltage – V
GAIN BANDWIDTH PRODUCT
vs. COLLECTOR CURRENT
14
f
T
– Gain Bandwidth Product – GHz
12
10
8
6
4
2
0.5
5V
3V
|S
21e
|
2
– Insertion Power Gain – dB
f = 2 GHz
12
I
C
– Collector Current – mA
INSERTION POWER GAIN
vs. COLLECTOR CURRENT
f = 2 GHz
10
V
CE
= 1 V
8
5V
6
3V
V
CE
= 1 V
1
2
5
10
20
4
0.5
1
2
5
10
20
50
I
C
– Collector Current – mA
NOISE FIGURE
vs. COLLECTOR CURRENT
5
C
re
– Feed-back Capacitance – pF
f = 2 GHz
V
CE
= 3 V
NF – Noise Figure – dB
4
0.5
I
C
– Collector Current – mA
FEED-BACK CAPACITANCE
vs. COLLECTOR TO BASE VOLTAGE
f = 1 MHz
0.4
3
0.3
2
0.2
1
0
0.5
0.1
0
0.5
1
2
5
10
20
1
2
5
10
20
I
C
– Collector Current – mA
V
CB
– Collector to Base Voltage – V
3