R

DC COMPONENTS CO., LTD.

RATING AND CHARACTERISTIC CURVES (DLQ4148 AND DLQ4448)

v=0

0.1

0.2

0.5

A

100

5

3

2

10

5

3

2

1

5

3

2

2

5

2

5

2

5

2

5

2

5

2

5

Admissible repetitive peak forward current versus pulse duration

1

10

S

v=tp /T T=l /fp

T

t

I

tp

Forward characteristics

IF

10

1

mA

0

1

2

V

VF

Dynamic forward resistance

versus forward current

Rf

IF

Ω

10

1

5

2

5

2

5

2

5

2

1

10

mA

f=1kHz

Relative capacitance

versus reverse voltage

Ctot(VR)

Ctot(OV)

VR

f=1kHz

1.1

1.0

0.9

0.8

0.7

V

0

2

4

6

8

10

Admissible power dissipation

versus ambient temperaturs

1000

900

800

700

600

500

400

100

200

100

0

0

100

200

Ptot

Tamb

o

C

mW

REF: DLQ4148

tp