LESHAN RADIO COMPANY, LTD.
35A2/2
BA157G-BA159G
G P P
RATING & CHARACTERISTIC CURVES OF FAST GPP DIODE
FIG. 2 TYPICAL FORWARD
CURRENT DERATING CURVE
AMBIENT TEMPER ATURE, (ºC)
+0.5A
0
-0.25A
-1.0A
SET TIME
Trr
NOTES:1.Rise Time=7ns max.
Input Impedance=1megohm.22pF.
2.Rise Time=10ns max.
Source Impedance=50 ohms.
(+)
P U L S E
G E N E R AT O R
( N O T E 2 )
(-)
D.U.T.
OSCILLOSCOPE
(NOTE 1)
1
N O N .
INDUCTIVE
(+)
25Vdc
(APPROX)
(-)
50
10
NONINDUCTIVE
NONINDUCTIVE
FIG.1 TEST CIRCUIT DIAGRAM AND
REVERSE RECOVERY TIME CHARACTERISTIC
BASE FOR 10 ns/cm
A
VERAGE FOR
W
ARD CURRENT
,(A)
1cm
0
25
50
75
100
125
150
175
1.0
0.8
0.6
0.4
0.2
0
I
PK
/I
AV
=
Resistive or
Inductive Load
0.375"(9.5mm)
Lead lengths
INST
ANT
ANEOUS FOR
W
ARD CURRENT
,(A)
INSTANTANEOUS FORWARD VOLTAGE,(V)
0
2
4
6
8
10
12
14
16
10
1
.1
.01
T
J
=25ºC
Pulse Width=300
µ
s
1% Duty Cycle
FIG.3 TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
CAP
ACIT
ANCE,(pF)
FIG.4 TYPICAL JUNCTION CAPACITANCE
1
5
10
50
100
REVERSE VOLTAGE,(V)
T
J
= 25 ºC
f =1MHz
V
sing
=50MV
p-p
100
10
1
PEAK FOR
W
ARD SURGE CURRENT
. AMPERES
20
15
10
5
0
FIG.5 MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
1
2
4
6
10
20
40
60
100
NUMBER OF CYCLES AT 60Hz
T
J
=55ºC
8.3ms Single Halt Sine
Wave (JEDEC Method)
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