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