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2012 ROHM Co., Ltd. All rights reserved.

2012.01 - Rev.E

Data Sheet

2SD1898 / 2SD1733



Electrical characteristic curves

0.1

0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

(V)

Fig.1 Grounded emitter propagation

characteristics

1000

100

10

1

Ta=25

°C

24

08

10

6

V)

Fig.2 Grounded emitter output

characteristics

1.0

0

0.8

0.6

0.4

0.2

6mA

5mA

4mA

3mA

2mA

1mA

Ta=25

°C

0

100

1000

100

0

10

1000

mA)

Fig.3 DC current gain vs.

collector current

Ta=25

°C

1V

0.01

0.1

1.0

2.0

0.2

0.02

0.05

0.5

100

0

10

1000

mA)

Fig.4 Collector-emitter saturation

voltage vs. collector current

Ta=25

°C

10/1

1

2

5 10 20

50 100 200 500 1000

EMITTER CURRENT :

Fig.5 Gain bandwidth product vs.

emitter current

500

200

100

50

20

10

5

2

Ta=25

°C

0.1 0.2 0.5 1

2

5

10 20

50 100

V)

EMITTER TO BASE VOLTAGE

V)

Fig.6 Collector output capacitance vs.

collector-base voltage

Emitter input capacitance vs.

emitter-base voltage

100

1000

10

1

Ta=25

°C

f=1MHz

Ic=0A

Ic Max (Pulse)

Ta=25

°C

Single

non-repetitive

pulse

DC

V)

0.1 0.2 0.5 1 2

5 10 20 50100

500

200

1000

10

5

2

1

20m

10m

5m

2m

1m

50m

100m

200m

500m

Fig.7 Safe operating area

(2SD1898)