http://www.weitron.com.tw
WEITRON
SOT-23
1
2
3
MMBTA55
V
CEO
u
MMBTA55
MMBTA56
-60
-60
-4.0
-80
-80
-4.0
MMBTA55=2H, MMBTA56=2GM
MMBTA55
MMBTA56
MMBTA55
MMBTA56
MMBTA55
MMBTA56
(3)
0
0
I =0)
B
-60
-80
-60
-80
-4.0
S
-0.1
u
-0.1
-0.1
-6
-8
3.Pulse Test:Pulse Width 300us, Duty Cycle 2.0%
4. f is defined as the freguency at which hfeextrapolates to unity
T
MMBTA56
<_
<_
Driver PNP
-5
-
-
-
WEITRON
http://www.weitron.com.tw
MMBTA55
MMBTA56
ON CHARACTERISTICS
DC C urrent G ain
(I
C
= -10 mAdc, V
C E
= -1.0 Vdc)
(I
C
= -100 mAdc, V
C E
= -1.0 Vdc)
h
F E
-100
-100
-
-
-
-
C ollector- E mitter S aturation Voltage
(I
C
= -100 mAdc, I
B
= -10 mAdc)
V
C E (sat)
-
-0.25
V dc
B ase- E mitter On Voltage
(I
C
= -100 mAdc, V
C E
= -1.0 Vdc)
V
B E (on)
-
-1.2
V dc
SMALL-SIGNAL CHARACTERISTICS
C urrent- G ain - B andwidth P roduct (4)
(I
C
= -100 mA, V
C E
= -1.0 V, f = 100 MHz)
f
T
50
-
MHz
FIG1. Switching Time Test Circuits
OUTPUT
TURN-ON TIME
-1.0 V
V
CC
+40 V
R
L
* C
S
6.0 pF
R
B
100
100
V
in
5.0 F
t
r
= 3.0 n s
0
+10 V
5.0
OUTPUT
TURN-OFF TIME
+V
BB
V
CC
+40 V
R
L
* C
S
6.0 pF
R
B
100
100
V
in
5.0 uF
t
r
= 3.0 ns
5.0 s
*Total S hunt C apacitance of Test J ig and C onnectors
F or P NP Test C ircuits, R everse All Voltage P olarities
FIG2. Current-Gain - Bandwidth Product
-100
-200
-2.0
I
C
, COLLECTOR CURRENT (mA)
300
200
100
70
50
30
V
CE
= -2.0 V
T
J
= 25 C
-3.0
-5.0 -7.0 -10
-20 -30
-50 -70
f T
,
C
U
R
R
E
N
T
-
G
A
I
N
-
B
A
N
D
W
I
D
T
H
P
R
O
D
U
C
T
(
M
H
z
)
us
-
-
-
-
ELECTRICAL CHARACTERISTICS
(T
A
= 25 C unless otherwise noted)
C haracteris tic
S ymbol
Min
Max
Unit
u
u
WEITRON
http://www.weitron.com.tw
MMBTA55
MMBTA56
FIG4. Switching Time
-20
-10
I
C
, COLLECTOR CURRENT (mA)
200
100
50
20
10
-100
t
,
T
I
M
E
(
n
s
)
-50
-200
-500
1.0 k
500
V
CC
= 40 V
I
C
/I
B
= 10
I
B1
= I
B2
T
J
= 25 C
t
s
t
f
t
r
-5.0 -7.0
30
70
300
700
-30
-70
t
d
@ V
BE(off)
= 0.5 V
-300
FIG6. ON Voltages
FIG7. Collector Saturation Region
FIG8. Base-Emitter Temperature
Coefficient
-100
-500
-0.5
I
C
, COLLECTOR CURRENT (mA)
-0.8
-1.2
-1.6
-2.0
-2.4
-2.8
R
V
B
,
T
E
M
P
E
R
A
T
U
R
E
C
O
E
F
F
I
C
I
E
N
T
(
m
V
/
C
)
-10
R
VB
for V
BE
-1.0 -2.0
-5.0
-20
-50
-200
"
"
FIG.3 Capacitance
V
R
, REVERSE VOL TAGE (VOLTS)
-1.0
-100
-0.1
100
70
50
30
20
10
-2.0
C
,
C
A
P
A
C
I
T
A
N
C
E
(
p
F
)
7.0
5.0
-0.2
-0.5
-5.0
-10 -20
-50
T
J
= 25 C
C
ibo
C
obo
FIG.5 DC Current Gain
-2.0
-500
-0.5
I
C
, COLLECTOR CURRENT (mA)
400
200
100
80
60
40
-10
,
D
C
C
U
R
R
E
N
T
G
A
I
N
T
J
= 125 C
-1.0
-5.0
V
CE
= -1.0 V
-20
-100
-50
-200
h
F
E
25 C
-55 C
V
,
V
O
L
T
A
G
E
(
V
O
L
T
S
)
-10
-500
-1.0
I
C
, COLLECTOR CURRENT (mA)
-1.0
-0.8
-0.6
-0.4
-0.2
0
-100
T
J
= 25 C
V
BE(sat)
@ I
C
/I
B
= 10
V
CE(sat)
@ I
C
/I
B
= 10
V
BE(on)
@ V
CE
= -1.0 V
-0.5
-2.0
-5.0
-200
-20
-50
I
B
, BASE CURRENT (mA)
,
C
O
L
L
E
C
T
O
R
-
E
M
I
T
T
E
R
V
O
L
T
A
G
E
(
V
O
L
T
S
)
V
C
E
-0.1
-10
-0.05
-1.0
-0.8
-0.6
-0.4
-0.2
0
-1.0
T
J
= 25 C
-50
I
C
=
-100 mA
I
C
=
-50 mA
I
C
=
-250 mA
I
C
=
-500 mA
I
C
=
-10 mA
-20
-2.0
-5.0
-0.2
-0.5
MMBTA55
MMBTA56
Dim
A
B
C
D
E
G
H
J
K
L
M
Min
0.35
1.19
2.10
0.85
0.46
1.70
2.70
0.01
0.89
0.30
0.076
Max
0.51
1.80
3.00
1.05
1.00
2.10
3.10
0.13
1.60
0.61
0.25
A
B
D
E
G
M
L
H
J
T OP V IE W
K
C
SOT-23 Package Outline Dimensions
Unit:mm
WEITRON
http://www.weitron.com.tw
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