FR257 データシートの表示（PDF） - Shenzhen Yixinwei Technology Co., Ltd.

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FR257

FAST RECOVERY RECTIFIER

Shenzhen Yixinwei Technology Co., Ltd. 

RATINGS AND CHARACTERISTIC CURVES FR251 THRU FR257

FIG.1-TYPICAL FORWARD CURRENT

DERATING CURVE

2.5

2.0

1.5

1.0

SINGIE PHASE HAIF WAVE 60HZ

RESISTIVE OR INDUCTIVE LOAD

0.5

0

0 25 50 75 100 125 150 175

AMBIENT TEMPERATURE (°C)

FIG.3-TYPICAL INSTANTANEOUS FORWARD

CHARACTERISTICS

20

10

FIG.2-MAXIMUM NON-REPETITIVE

FORWARD SURGE CURRENT

150

125

100

75

50

25

0

1

2

8.3ms SINGLE HALF SINE-WAVE

(JEDEC Method)

4 6 8 10

20

40

NUMBER OF CYCLES AT 60Hz

60 100

FIG.4-TYPICAL JUNCTION CAPACITANCE

3

1

0.3

0.1

0.03

TJ=25°C

Pulse Width=300µs

1% Duty Cycle

0.01

0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8

INSTANTANEOUS FORWARD VOLTAGE (VOLTS)

200

100

60

40

TJ=25 C

20

10

6

4

2

1

0.1 0.2 0.4

12 4

10 20 40 100

REVERSE VOLTAGE. (V)

FIG.5-TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC

NONINDUCTIVE

NONINDUCTIVE

(＋)

D.U.T.

50Vdc

(ADJUSTABLE)

(－)

1

NONIN-

DUCTIVE

PULSE

GENERATOR

(NOTE2)

OSCILLOSCOPE

(NOTE1)

NOTES:1.Rise Time=7ns max. input lmpedance=1

megohm 22pF

2.Rise Time=10ns max. source lmpedance=

50 ohms

trr

+0.5A

0

-0.25A

-1.0A

1cm

SET TIME BASE FOR 50/100 ns/cm

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