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

BY251 thru BY255
MEDIUM CURRENT PLASTIC RECTIFIER
RATING AND CHARACTERISTICS CURVES
BY251 THRU BY255
CHENG- YI
ELECTRONIC
Fig.1 - FORWARD CURRENT DERATING CURVE
8
1=.25"(6.3mm)
7
6
1=.50"(12.7mm)
5
1=.301"(.79min)
TJ=Both Leads to
Heat Sink with
Lengths (f) AS shown
4
3
2 _{TA=Ambient Temperature}
0.275(9.5mm) Lead
1 Lengths P.C. Board mounting
Resistive or inductive Load
0
40
60 80 100 120 140 160 180
TEMPERATURE, ⁰C
Fig.3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
100
30
10
3.0
1.0
TJ=25C⁰
Pulse Width-300 s
2% DUTY CYCLE
0.3
0.1
.03
.01
0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
INSTANTANEOUS FORWARD VOLTAGE, (V)
Fig.2 - MAXIMUM PEAK FORWARD
SURGE CURRENT
200
8.3ms Single Half Sine Wave
JEDEC Method
100
NON-REPETIVE
50
TJ=150C⁰
REPETIVE
10
1
5 10
50 100
NUMBER OF CYCLES AT 60 Hz
Fig.4 - TYPICAL JUNCTION CAPACITANCE
100
50
TJ=25C⁰
10 f=1MHz
Visg=50m Vp-p
5
1
5 10
50 100
REVERSE VOLTAGE(V)
Fig.5 - TYPICAL REVERSE CHARACTERISTICS
10
TA=100C⁰
1.0
0.1
TA=25C⁰
.01
0
20 40 60 80 100 120 140
PERCENT OF RATED PEAK
REVERSE VOLTAGE, (%)