RATINGS AND CHARACTERISTIC CURVES BY251 THRU BY255
FIG.1-FORWARD CURRENT DERATING CURVE
4
10mm
10mm
FIG.2-TYPICAL FORWARD CHARACTERISTICS
100
10
AVERAGE FORWARD CURRENT AMPERES
INSTANTANEOUS FORWARD CURRENT(AMPERES)
3
T
J
=150℃
Ror L-Load
1
2
C-Load
T
J
=25℃
0.1
1
Typ.values
0.01
0.001
0
0
25
50
75
100
125
150
175
LEAD TEMPERATURE (
℃)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
FIG.3-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
1000
FIG.4-TYPICAL THERMAL RESISTANCE
50
400
1 Cycle
R
0JA
THERMAL RESISTANCE JUNCTION AMBIENT(℃/W)
I
FM
40
Max
Permissible surge current(A)
200
T
J
=25℃
30
100
20
Typ
40
10
L
L
20
1
2
4
10
20
100
0
0
5
10
15
NUMBER OF CYCLES AT 50Hz
20
25
30
L, LEAD LENGTH (mm)
DAESAN [ DAESAN ELECTRONICS CORP. ]
