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2010 ROHM Co., Ltd. All rights reserved.

2010.09 - Rev.C

Power Transistor (160V , 1.5A)

2SD1918 / 2SD1857A



Features



Dimensions (Unit : mm)

2) Low collector output capacitance.

4) Complements the 2SB1275.



Absolute maximum ratings (Ta = 25

C)

Parameter

Symbol

Tj

Tstg

Limits

160

160

5

1.5

1

150

−55 ∼+150

Unit

V

V

V

A(DC)

3

∗2

∗1

A(Pulse)

W

W

1

10

W(Tc

=25°C)

2SD1857A

2SD1918

°C

°C

Collector-base voltage

Collector-emitter voltage

Emitter-base voltage

Collector current

Collector

power

dissipation

Junction temperature

Storage temperature

1 Pw

=200msec duty=1/2

2

Printed circuit board 1.7mm thick, collector plating 1cm

∗

∗



Type

2SD1918

CPT3

QR

TL

2500

2SD1857A

ATV

PQ

TV2

2500

−−

Package

Code

Basic ordering unit (pieces)

Marking

*



Electrical characteristics (Ta = 25

C)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Cob

160

160

5

−

−

−

120

−

−

−

−

−

−

−

−

−

80

20

−

−

−

1

1

2

390

−

−

V

V

V

μA

μA

V

−

82

−

270

−

2SD1918

2SD1857A

MHz

pF

= 50

μA

= 1mA

= 50

μA

= 120V

= 4V

= 1A/0.1A

−

−

1.5

V

= 1A/0.1A

= 5V/0.1A

Collector-base breakdown voltage

Collector-emitter breakdown voltage

Emitter-base breakdown voltage

Collector cutoff current

Emitter cutoff current

Collector-emitter saturation voltage

DC current

transfer ratio

Transition frequency

Output capacitance

Base-emitter saturation voltage

Measured using pulse current.

∗

∗

∗

EIAJ : SC-63

ROHM : CPT3

ROHM : ATV

2SD1857A

2SD1918

0.45

(2) Collector

1.05

(3) Base

Taping specifications

(1) Emitter

0.5

(1)

0.65Max.

2.54

(2)

2.54

(3)

6.8

2.5

9.5

2.5

0.8Min.

1.5

C0.5

0.9

1.5

5.5

(3) Emitter(Source)

(2) Collector(Drain)

(1) Base(Gate)