BY251 查看數據表（PDF） - CHENG-YI ELECTRONIC CO., LTD.

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BY251

MEDIUM CURRENT PLASTIC RECTIFIER

CHENG-YI ELECTRONIC CO., LTD. 

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, (%)

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