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
8 _{1=.25"(6.3min)}
7
6
5 ^{1=.50"(12.7min)}
1=.301"(.79min)
TJ = BOTH LEADS TO
HEAT SINK WITH
LENGTHS (f) AS
SHOWN
4
3 _{TA=AMBIENT TEMPERATURE}
2 ^{0.375(9.5mm) LEAD}
P.C.BOARD MOUNTING
1 RESISTIVE OR INDUCTIVE
0 ^LOAD
40 60 80 100
120
140
160 180
TEMPERATURE, ¢J
Fig. 1-FORWARD CURRENT DERATING CURVE
200
8.3ms Single Half Since-Wave
JEDEC Method
100
MON-REPETITIVE
50
TJ=150¢J
REPETITIVE
10
1
5 10
50 100
AMBIENT TEMPERATURE, ¢J
Fig. 2-MAXIMUM PEAK FORWARD SURGE CURRENT
100
30
10
3.0
Tj = 25 _¢J
Pulse Width = 300£g s
1.0
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, VOLTS
Fig. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
100
50
TJ = 25_¢J
10 ^{f = 1MHz}
Visg = 50m Vp-p
1
1
5 10
50 100
REVERSE VOLTAGE, VOLTS
Fig. 4-TYPICAL JUNCTION CAPACITANCE
10
TA = 100 ¢J
1.0
0.1
TA = 25 ¢J
.01
0 20 40 60 80 100 120 140
PERCENT OF RATED PAK REVERSE VOLTAGE, %
Fig. 5-TYPICAL REVERSE CHARACTERISTICS