Switching Diodes
1
JEDEC : TO-236
EIAJ : SC-59
Mini Type Package (3-pin)
1 : Anode 1
2 : Cathode 2
3 : Anode 2
Cathode 1
MA3X157A
Silicon epitaxial planar type
For switching circuits
I Features
High switching speed
Small terminal capacitance, C
t
Both chips have even characteristics
Can be connected in series
I Absolute Maximum Ratings T
a
= 25C
Unit : mm
Parameter
Symbol
Rating
Unit
Reverse voltage (DC)
V
R
80
V
Peak reverse voltage
V
RM
80
V
Forward current
Single
I
F
100
mA
(DC)
Series
65
Repetitive peak
Single
I
FRM
225
mA
forward current
Series
145
Non-repetitive peak
Single
I
FSM
500
mA
forward surge current
*
Series
325
Junction temperature
T
j
150
C
Storage temperature
T
stg
-55 to +150
C
Internal Connection
Note) * : t = 1 s
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Reverse current (DC)
I
R
V
R
= 75 V
0.1
A
Forward voltage (DC)
V
F
I
F
= 100 mA
1.2
V
Reverse voltage (DC)
V
R
I
R
= 100 A
80
V
Terminal capacitance
C
t
V
R
= 0 V, f = 1 MHz
2
pF
Reverse recovery time
*
t
rr
I
F
= 10 mA, V
R
= 6 V
3
ns
I
rr
= 0.1 I
R
, R
L
= 100
I Electrical Characteristics T
a
= 25
C
Note) 1. Rated input/output frequency: 100 MHz
2. * : t
rr
measuring circuit
1
3
2
2.8
+ 0.2
- 0.3
1.5
+ 0.25
- 0.05
0.65
0.15
0.65
0.15
3
1
2
0.95
0.95
1.9
0.2
0.4
+
0.1
-
0.05
1.1
+
0.2
-
0.1
0.8
0.4
0.2
0 to 0.1
0.16
+
0.1
-
0.06
1.45
0.1 to 0.3
2.9
+
0.2
-
0.05
Marking Symbol: MS
Bias Application Unit N-50BU
90%
Pulse Generator
(PG-10N)
R
s
= 50
W.F.Analyzer
(SAS-8130)
R
i
= 50
t
p
= 2 s
t
r
= 0.35 ns
= 0.05
I
F
= 10 mA
V
R
= 6 V
R
L
= 100
10%
Input Pulse
Output Pulse
I
rr
= 0.1 I
R
t
r
t
p
t
rr
V
R
I
F
t
t
A
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