WEITRON

US1A thru US1M

http://www.weitron.com.tw

S et time bas e for 50/100 ns /cm

+0.5A

0A

-0.25A

-1.0A

F IG ..5 R evers e R ecovery Time C haracteris tic and Tes t C ircuit

50V DC

Approx

Os cillos cope

(Note 1)

P uls e

G enerator

(Note 2)

Device

Under

Tes t

(+)

(+)

(-)

(-)

0.01

0.1

1.0

10

100

1000

0

20

40

60

80

100

120

140

P E R C E NT OF R AT E D P E AK R E V E R S E V OLTAG E (%)

F IG ..4 T ypical R evers e C haracteris tics

T = 100°C

j

T = 25°C

j

0.01

0.1

1.0

10

0

0.4

0.8

V , INS TANTANE OUS F OR WAR D V OLTAG E (V )

F

F IG .2 Tpical F orward C haracteris tics

1.2

1.6

2.0

US 1A - US 1D

US 1G

US 1J - US 1M

0

10

20

30

40

1

10

100

NUMB E R OF C Y C LE S AT 60Hz

F IG . 3 F orward S urge C urrent Derating C urve

S ingle Half S ine-Wave

(J E DE C Method)

T = 150°C

j

0

0.5

1.0

25

50

75

100

125

150

T , T E R MINAL T E MP E R AT UR E (°C )

T

F IG .1 F orward C urrent Deratin C urve