BY251 Datasheet, PDF (2/2 Pages) Pan Jit International Inc. – MEDIUM CURRENT PLASTIC RECTIFIER(VOLTAGE - 200 to 1300 Volts CURRENT - 3.0 Amperes)

RATINGS AND CHARACTERISTIC CURVES BY251 THRU BY255
FIG.1-FORWARD CURRENT DERATING CURVE
4
10mm
10mm
3
2
C-Load
1
Ror L-Load
0
0 25 50 75 100 125 150 175
LEAD TEMPERATURE ( )
FIG.3-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
1000
400
200
100
IFM
1 Cycle
TJ=25
40
20
1
2
4
10
20
100
NUMBER OF CYCLES AT 50Hz
FIG.2-TYPICAL FORWARD CHARACTERISTICS
100
10
TJ=150
1
TJ=25
0.1
0.01
0.001
Typ.values
0.2
0.4 0.6
0.8
1.0
1.2
1.4
1.6
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
FIG.4-TYPICAL THERMAL RESISTANCE
50
40
Max
30
20
Typ
10
L
L
0
0
5
10
15
20
25
30
L, LEAD LENGTH (mm)