www.vishay.com

For technical questions within your region, please contact one of the following:

Document Number: 88763

2

Revision: 23-Oct-09

UG4A thru UG4D

Vishay General Semiconductor

Note

Note

RATINGS AND CHARACTERISTICS CURVES

Fig. 1 - Forward Current Derating Curves

Fig. 2 - Maximum Non-Repetitive Peak Forward Surge Current

PARAMETER

TEST CONDITIONS

SYMBOL

VALUE

UNIT

Maximum instantaneous forward voltage

0.95

V

Maximum DC reverse current

at rated DC blocking voltage

5.0

μA

300

Maximum reverse recovery time

20

ns

Typical reverse recovery time

30

ns

50

Typical stored charge

15

nC

30

Typical junction capacitance

4.0 V, 1 MHz

20

pF

PARAMETER

SYMBOL

UG4A

UG4B

UG4C

UG4D

UNIT

Typical thermal resistance

(1)

25

°C/W

ORDERING INFORMATION (Example)

PREFERRED P/N

UNIT WEIGHT (g)

PREFERRED PACKAGE CODE

BASE QUANTITY

DELIVERY MODE

UG4D-E3/54

1.138

54

1400

13" diameter paper tape and reel

UG4D-E3/73

1.138

73

1000

Ammo pack packaging

0

25

50

75

100

125

150

175

0

1.0

2.0

3.0

4.0

5.0

6.0

Temperature (°C)

T

P.C.B. Mounted

0.47" x 0.47" (12 mm x 12 mm)

Copper Pads

Resistive or Inductive Load

0.375" (9.5 mm) Lead Length

T

1

10

100

10

100

1000

1

Number of Cycles at 60 Hz

T

8.3 ms Single Half Sine-Wave