RATING CHARACTERISTIC CURVES ( BA157PT THRU BA159PT )
FIG. 1 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
1000
R
thj-a
, THERMAL RESISTANCE JUNCTION AMBIENT (
o
C/W)
500
X.
FIG. 2 - TYPICAL THERMAL RESISTANCE
CHARACTERISTICS
100
80
X.
MA
I
F
, INSTANTANEOUS FORWARD CURRENT (mA)
T
J
=25
o
C
V
F
TY
P
.
100
50
I
F
MA
60
P.
TY
10
5.0
40
I
I
1.0
0.5
20
0
0
0.4
0.8
1.2
1.6
V
F
, INSTANTANEOUS FORWARD VOLTAGE DROP (V)
0
0
10
20
30
35
I, LEAD LENGTH (mm)
FIG. 3 - TYPICAL FORWARD CURRENT DERATING CURVE
1.25
FIG. 4 - TYPICAL JUNCTION CAPACITANCE
10
9
T
J
=25
o
C
f = 1 MH
Z
I
F
(AV), AVERAGE FORWARD CURRENT (A)
1.00
R - Load
8
Cd, DIODE CAPACITANCE ( pF )
150
o
7
6
5
4
3
2
1
0.80
0.75
C - Load
0.50
10 mm 10 mm
0.25
0
0
50
100
200
T
amb
, MAX. AMBIENT TEMPERATURE ( C)
0
0
10
100
1000
V
R
, REVERSE VOLTAGE ( V )