STMicroelectronics-2ST31A

2ST31A  

Low voltage NPN power transistor  

Features  

■

High switching speed  

TAB  

■

Good performances in terms of h

 

linearity  

FE  

Application  

■

Linear and switching industrial applications  

3

2

1

Description  

TO-220  

The device is manufactured in planar technology  

with “base island” layout. The resulting transistor  

shows high gain performance coupled with low  

saturation voltage.  

Figure 1.  

Internal schematic diagram  

Table 1.  

Order code  

2ST

3

1A  

Device summary  

Marking  

Package  

TO-220  

Packaging  

2ST

3

1A  

T

u

be  

December 2010  

Doc ID 17868 Rev 2  

1/8  

8

Absolute maximum ratings  

2ST31A  

1

Absolute maximum ratings  

Table 2.  

Symbol  

Absolute maximum ratings  

Parameter  

Value  

Unit  

V

CBO  

V

CEO  

V

EBO  

I

C  

Collector-base voltage (I

E

= 0)  

Collector-emitter voltage (I

B

= 0)  

Emitter-base voltage (I

C

= 0)  

Collector current  

60  

V

V

60  

5

V

3

A

I

CM  

Collector peak current  

5

A

I

B  

Base current  

1

40  

A

P

TOT  

T

STG  

T

J  

T

o

tal dissipation at T

case

= 25°C  

Storage temperature  

W

°C  

°C  

-65 to 150  

150  

Max. operating junction temperature  

Table 3.  

Symbol  

Thermal data  

Parameter  

Value  

Unit  

R

thJC  

Thermal resistance junction-case max.  

3

.1  

°C/W  

2/8  

Doc ID 17868 Rev 2  

2ST31A  

Electrical characteristics  

2

Electrical characteristics  

T

= 25 °C unless otherwise specified.  

case  

Table 4.  

Symbol  

Electrical characteristics  

Parameter  

Test conditions  

V

CE

=

3

0 V  

Min. Typ. Max. Unit  

Collector cut-off current  

(I

B

= 0)  

I

CEO  

I

EBO  

I

CES  

0.

3  

1

mA  

mA  

mA  

Emitter cut-off current (I

C

= 0)

 

V

EB

= 5 V  

Collector cut-off current  

V

CE

= 60 V  

0.2  

(V

BE

= 0)  

Collector-emitter  

(1)  

V

CEO(sus)  

I

C

=

3

0 mA  

I

C

=

3

A

_  

60  

V

V

V

sustaining voltage (I

B

= 0)  

Collector-emitter saturation  

voltage  

(1)  

V

CE(sat)  

I

B

=

3

75 mA  

1.2  

Base-emitter saturation  

voltage  

(1)  

V

BE(sat)  

I

C

=

3

A

__

I

B

=

3

75 mA  

1.45  

I

C

= 20 mA

__

V

CE

= 4 V

 

100  

I

C

= 1 A

 

_ _

 

V

CE

= 4V

 

25  

150  

(1)  

h

FE  

DC current gain  

1. Pulse

 

test: pulse duration

≤

3

00 µs, duty cycle

≤

2 %  

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/8  

Electrical characteristics  

2ST31A  

2.1  

Electrical characteristics (curve)  

Figure 2.  

Safe operating area  

Figure 3.  

Derating curves  

Figure 4.  

DC-current gain  

Figure 5.  

Base-emitter saturation  

voltage  

V

BE

(sat)  

h

FE  

(V)  

h

FE

= 10  

T

J

= 25°C  

T

J

= -40°C  

T

J

= -40°C  

100  

1

T

J

= 150°C  

T

J

= 25°C  

T

J

= 150°C  

V

CE

= 4 V  

10  

0.01  

0.1  

0.1  

1

I

C

(A)  

Ic(A)  

0.01  

0.1  

1

Figure 6.  

Collector-emitter saturation  

voltage  

V

CE

(

sa

t)  

(

V)  

h

FE

= 10  

T

J

= 150°C  

0.1  

T

J

= 25°C  

T

J

= -40°C  

0.01  

I

c(A)  

0.01  

0.1  

1

4/8  

Doc ID 17868 Rev 2  

2ST31A  

Package mechanical data  

3

Package mechanical data  

In order to meet environmental requirements, ST offers these devices in different grades of  

®

®

ECO

P

A

CK packages,

 

depending on their level of environmental compliance. ECO

P

A

CK  

specifications, grade definitions and product status are available at:

.  

®

ECO

P

A

CK is

 

an ST trademark.  

Doc ID 17868 Rev 2  

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Package mechanical data  

2ST31A  

TO-220 type A mechanical data  

mm  

Dim  

Min  

Typ  

Max  

A

b

4.40  

0.61  

1.14  

0.4

8

 

15.25  

4.60  

0.

88  

1.70  

0.70  

15.75  

b

1  

c

D

D1  

E

1.27  

10  

10.40  

2.70  

5.15  

1.32  

6.60  

2.72  

14  

e

2.40  

4.95  

1.23  

6.20  

2.40  

13  

e1  

F

H1  

J1  

L

L1  

L20  

L30  

∅

P  

Q

3.50  

3.93  

16.40  

2

8

.90  

3.75  

2.65  

3.

8

5  

2.95  

0015988_Rev_S  

6/8  

Doc ID 17868 Rev 2  

2ST31A  

Revision history  

4

Revision history  

Table 5.  

Date  

Document revision history  

Revision  

Changes  

24-Aug-2010  

14-Dec-2010  

1

2

Initial release.  

Document status promoted from preliminary data to datasheet.  

Doc ID 17868 Rev 2  

7/8  

2ST31A  

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