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

RATING AND CHARACTERISTIC CURVES (BY251 THRU BY255)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
50
10
3.0
1.0
0.1
Tj=25 C
Pulse Width 300us
1% Duty Cycle
.01
.6
.7 .8 .9 1.0 1.1 1.2 1.3
FORWARD VOLTAGE,(V)
FIG.3 - TYPICAL REVERSE
CHARACTERISTICS
100
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
3.0
2.5
2.0
1.5
1.0
0.5
0
0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
20 40
60 80 100 120 140 160 180 200
AMBIENT TEMPERATURE,( C)
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
250
200
150
Tj=25 C
8.3ms Single Half
100
Sine Wave
JEDEC method
50
0
1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
10
1.0
.1
Tj=100 C
Tj=25 C
.01
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE,(%)
140
120
100
80
60
40
20
0
.01
FIG.5-TYPICAL JUNCTION CAPACITANCE
.05 .1
.5 1
5 10
REVERSE VOLTAGE,(V)
50 100
125