KST-5007-000
1
SUR521H
Epitaxial Planar Type NPN Silicon Transistor
R
1
R
2
10K
47K
10K
47K
Tr1
Tr2
Description
· Digital transistor
Features
· Two SRC1207 chips in SOT-353 package
· With built-in bias resistors
Ordering
Information
Type NO.
Marking
Package Code
SUR521H
2X
SOT-353
Outline Dimensions unit :
mm
S
S
e
e
m
m
i
i
c
c
o
o
n
n
d
d
u
u
c
c
t
t
o
o
r
r
Tr2
4 5
6
R1
R2
Tr2
4
5
Tr1
3 2
1
0.25 Min.
1 5
2
3 4
0.
15~0.
30
2.1 BSC
1.25 BSC
0~0.
1
0.
9
±
0.
1
1.
30 BSC
2.
0 BSC
0.
1~0.
25
PIN Connections
1. Base 1
2. Emitter 1,2
3. Base 2
4. Collector 2
5. Collector 1
R1
R2
R1
R2
Tr2 Tr1