參數(shù)資料
型號(hào): MMBT4258D87Z
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 小信號(hào)晶體管
英文描述: Si, PNP, RF SMALL SIGNAL TRANSISTOR
文件頁(yè)數(shù): 9/14頁(yè)
文件大?。?/td> 739K
代理商: MMBT4258D87Z
PN4258
/
MMBT4258
Typical Characteristics
(continued)
PNP Switching Transistor
(continued)
Input / Output Capacitance
vs. Reverse Bias Voltage
-10
-8
-6
-4
-2
0
1.2
1.6
2
2.4
2.8
REVERSE BIAS VOLTAGE (V)
CA
P
A
C
IT
A
N
C
E
(
p
F
)
F = 1.0 MHz
C
I = 0
obo
C
I = 0
ibo C
Contours of Constant Gain
Bandwidth Product (f )
0.1
1
10
100
-14
-12
-10
-8
-6
-4
-2
0
I - COLLECTOR CURRENT (mA)
V
-
C
O
L
E
C
TO
R
VO
L
T
A
G
E
(V
)
C
T
CE
200 MHz
500 MHz
900 MHz
1500 MHz
1200 MHz
200 MHz
600 MHz
Switching Times vs.
Collector Current
12
5
10
20
50
1
2
5
10
20
50
100
I
- COLLECTOR CURRENT (mA)
S
W
IT
C
H
IN
G
T
IM
E
S
(n
s
)
C
I = 10 I
= 10 I
C
V
= -1.5V
CC
t f
t s
t
d
t r
B1
B2
V
= 0
BE (O)
Delay Time vs. Turn On Base
Current / Reverse Emitter Voltage
0.5
1
2
3
4
5
0
1
2
3
4
I
- TURN ON BASE CURRENT (mA)
-
RE
V
E
R
S
E
BA
SE-
EM
ITT
E
R
V
O
L
T
A
G
E
(V
)
B1
V
= -1.5V
CC
I = 10 mA
C
BE(
O
)
t = 20 ns
d
10 ns
8.0 ns
5.0 ns
3.0 ns
Rise Time vs. Collector and
Turn-On Base Currents
12
5
10
20
50
0.1
0.2
0.5
1
2
5
10
I - COLLECTOR CURRENT (mA)
I
-
T
U
R
N
-O
N
BA
S
E
CU
R
E
N
T
(
m
A
)
C
V
= -1.5V
CC
B1
t = 2.0 ns
f
10 ns
5.0 ns
20 ns
Switching Times vs.
Ambient Temperature
-50
0
50
100
150
0
5
10
15
20
T - AMBIE NT TEMP ERATURE ( C)
S
W
IT
C
H
IN
G
T
IM
E
S
(n
s
)
A
ts
°
t r
td
t f
I
= 10 mA
C
I
= I
= 1 mA
B1
B2
V
= -1.5V
CC
V
= 0
BE (O)
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