STMicroelectronics-BD241C

BD241A  

BD241C  

NPN power transistors  

.

Features  

■

NPN transistors  

Applications  

■

Audio, general purpose switching and amplifier  

transistors  

3

2

1

Description  

TO-220  

The devices are manufactured in Planar  

technology with “Base Island” layout. The  

resulting transistor shows exceptional high gain  

performance coupled with very low saturation  

voltage. The PNP types are BD242A and  

BD242C.  

Figure 1.  

Internal schematic diagram  

Table 1.  

Device summary  

Order codes  

Marking  

Package  

TO-220  

TO-220  

Packaging  

BD241A  

BD241C  

BD241A  

BD241C  

Tube  

Tube  

July 2007  

Rev 2  

1/9  

9

Absolute maximum ratings  

BD241A BD241C  

1

Absolute maximum ratings  

Table 2.  

Symbol  

Absolute maximum ratings  

Parameter  

Value  

Unit  

BD241A  

BD241C  

V

Collector-emitter voltage (R

 

= 100

Ω

)  

70  

60  

115  

100  

V

V

CER  

BE  

V

Collector-emitter voltage (I

 

= 0)  

B

CEO  

EBO  

V

Emitter-base voltage (I

 

= 0)  

5

3

V

C

I

Collector current  

A

C

I

Collector peak current (t

 

< ms)  

5

A

CM  

p

I

Base current  

1

A

B

P

Total dissipation at T  

= 25°C  

case  

40  

W

°C  

°C  

TOT  

T

Storage temperature  

-65 to 150  

150  

stg  

T

Max. operating junction temperature  

J

2/9  

BD241A BD241C  

Electrical characteristics  

2

Electrical characteristics  

(T  

= 25°C; unless otherwise specified)  

case  

Table 3.  

Symbol  

Electrical characteristics  

Parameter  

Test Conditions  

Min. Typ.

 

Max. Unit  

Collector cut-off current  

V

I

= rated V  

0.2  

mA  

CES  

CE  

CEO  

(V =

 

0)  

BE  

for BD241A  

for BD241C  

V

=30V  

=60V  

Collector cut-off current  

0.3  

0.3  

mA  

mA  

CE  

I

I

CEO  

EBO  

(I =

 

0)  

V

B

CE  

Emitter cut-off current  

V

=5V  

1

mA  

EB  

(I =

 

0)  

C

Collector-emitter  

sustaining voltage  

I =30mA  

C

(1)  

60  

V

V

V

for BD241A  

for BD241C  

CEO(sus)  

(I =

 

0)  

100  

B

Collector-emitter  

saturation voltage  

(1)  

I =3A

 

_

I =0.6A  

1.2  

1.8  

V

V

V

C

B

CE(sat)  

(1)  

I =3A  

V

=4V  

Base-emitter voltage  

DC current gain  

V

C

CE  

BE  

I =1A  

V

V

=4V  

=4V  

25  

10  

C

CE  

CE  

(1)  

h

FE  

I =3A  

C

1. Pulsed

 

duration = 300 ms, duty cycle

≥

1.5%.  

2.1  

Electrical characteristic (curves)  

Figure 2.  

Safe operating area  

Figure 3.  

Derating curve  

3/9  

Electrical characteristics  

Figure 4.  

BD241A BD241C  

DC current gain  

Figure 5.  

DC current gain  

Figure 6.  

Collector-emitter saturation

 

Figure 7.  

voltage  

Base-emitter saturation  

voltage  

Figure 8.  

Base-emitter on voltage  

Figure 9.  

Resistive load switching time  

4/9  

BD241A BD241C  

Electrical characteristics  

Figure 10.

 

Resistive load switching time  

2.2  

Test circuits  

Figure 11.

 

Resistive load switching test circuit  

1) Fast electronic switch  

2) Non-inductive resistor  

5/9  

Package mechanical data  

BD241A BD241C  

3

Package mechanical data  

In order to meet environmental requirements, ST offers these devices in ECOPACK®  

packages. These packages have a Lead-free second level interconnect . The category of  

second level interconnect is marked on the package and on the inner box label, in compliance  

with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also  

marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are  

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BD241A BD241C  

Package mechanical data  

TO-220 Mechanical data  

mm.  

TYP  

DIM.  

MIN.  

4.40  

0.61  

1.14  

0.49  

15.25  

MAX.  

4.60  

A

b

0.88  

b1  

c

1.70  

0.70  

D

15.75  

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  

øP  

Q

3.50  

3.93  

16.40  

28.90  

3.75  

2.65  

3.85  

2.95  

7/9  

Revision history  

BD241A BD241C  

4

Revision history  

Table 4.  

Date  

01-Dec-2000  

10-Jul-2007  

Revision history  

Revision  

Changes  

1

2

Initial Release  

Figure 2 and figure 3, have been added.  

8/9  

BD241A BD241C  

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