Datasheet BC237, BC237B Datasheet (Philips)

DISCRETE SEMICONDUCTORS

DATA SH EET

ook, halfpage

M3D186

BC237; BC237B

NPN general purpose transistors

Product specification
Supersedes data of 1997 Mar 06
File under Discrete Semiconductors, SC04

1997 Sep 04

Philips Semiconductors Product specification

NPN general purpose transistors BC237; BC237B

FEATURES

• Low current (max. 100 mA)

• Low voltage (max. 45 V).

PINNING

PIN DESCRIPTION

1 emitter
2 base

APPLICATIONS

3 collector

• General purpose switching and amplification.

DESCRIPTION

NPN transistor in a TO-92; SOT54 plastic package.
PNP complements: BC307; BC307B.

handbook, halfpage

1

2

3

MAM182

3

2

1

Fig.1 Simplified outline (TO-92; SOT54)

and symbol.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V
V
I
P
h

CBO
CEO

CM

tot

FE

collector-base voltage open emitter − 50 V
collector-emitter voltage open base − 45 V
peak collector current − 200 mA
total power dissipation T

≤ 25 °C − 500 mW

amb

DC current gain IC= 2 mA; VCE=5V

BC237 120 460
BC237B 200 460

f

T

transition frequency IC= 10 mA; VCE= 5 V; f = 100 MHz 100 − MHz

1997 Sep 04 2

Philips Semiconductors Product specification

NPN general purpose transistors BC237; BC237B

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

CBO

V

CEO

V

EBO

I

C

I

CM

I

BM

P

tot

T

stg

T

j

T

amb

Note

1. Transistor mounted on an FR4 printed-circuit board.

collector-base voltage open emitter − 50 V
collector-emitter voltage open base − 45 V
emitter-base voltage open collector − 6V
collector current (DC) − 100 mA
peak collector current − 200 mA
peak base current − 200 mA
total power dissipation T

≤ 25 °C; note 1 − 500 mW

amb

storage temperature −65 +150 °C
junction temperature − 150 °C
operating ambient temperature −65 +150 °C

THERMAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS VALUE UNIT

R

th j-a

thermal resistance from junction to ambient note 1 250 K/W

Note

1. Transistor mounted on an FR4 printed-circuit board.

1997 Sep 04 3

Philips Semiconductors Product specification

NPN general purpose transistors BC237; BC237B

CHARACTERISTICS

T

=25°C unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

I

CBO

I

EBO

h

FE

h

FE

V

CEsat

V

BEsat

V

BE

C

c

C

e

f

T

F noise figure I

collector cut-off current IE= 0; VCB=30V −−15 nA

I

= 0; VCB= 30 V; Tj= 150 °C −−5µA

E

emitter cut-off current IC= 0; VEB=5V −−100 nA
DC current gain IC= 0.1 mA; VCE= 5 V; see Fig.2 − 250 −
DC current gain IC= 2 mA; VCE= 5 V; see Fig.2

BC237 120 − 460

BC237B 200 − 460
collector-emitter saturation voltage IC= 100 mA; IB= 5 mA; note 1 −−600 mV
base-emitter saturation voltage IC= 100 mA; IB=5mA −−1200 mV
base-emitter voltage IC= 2 mA; VCE= 5 V 580 − 700 mV
collector capacitance IE=ie= 0; VCB= 10 V; f = 1 MHz − 11 − pF
emitter capacitance IC=ic= 0; VEB= 0.5 V; f = 1 MHz − 1.5 − pF
transition frequency IC= 10 mA; VCE= 5 V; f = 100 MHz 100 −−MHz

= 200 µA; VCE=5V; RS=2kΩ;

C

−−10 dB

f = 1 kHz; B = 200 Hz

Note

1. Pulse test: t

300

handbook, full pagewidth

h

FE

200

100

0

−2

10

≤ 300 µs; δ≤0.02.

p

−1

10

MBH724

VCE = 5 V

2

1

10 10

10

IC (mA)

3

Fig.2 DC current gain; typical values.

1997 Sep 04 4

Philips Semiconductors Product specification

NPN general purpose transistors BC237; BC237B

PACKAGE OUTLINE

Plastic single-ended leaded (through hole) package; 3 leads SOT54

c

E

d

A L

1

D

2

3

b

1

0 2.5 5 mm

scale

DIMENSIONS (mm are the original dimensions)

UNIT

Note

1. Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.

A

5.2

mm

5.0

OUTLINE
VERSION

SOT54 TO-92 SC-43

b

0.48

0.40

b

c

D

d

1

0.66

0.45

0.40

4.8

4.4

0.56

IEC JEDEC EIAJ

E

1.7

4.2

1.4

3.6

REFERENCES

2.54

e

e

1

1.27

L

14.5

12.7

L

1

(1)

L

1

2.5

EUROPEAN

PROJECTION

b

e

1

e

ISSUE DATE

97-02-28

1997 Sep 04 5

Philips Semiconductors Product specification

NPN general purpose transistors BC237; BC237B

DEFINITIONS

Data Sheet Status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

1997 Sep 04 6

Philips Semiconductors Product specification

NPN general purpose transistors BC237; BC237B

NOTES

1997 Sep 04 7

Philips Semiconductors – a worldwide company

Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. [phone], Fax. [phone]
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. [phone],

Fax. [phone]
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. [phone], Fax. [phone]

Belgium: see The Netherlands
Brazil: seeSouth America
Bulgaria: Philips Bulgaria Ltd., Energoproject, 15thfloor,

51 James Bourchier Blvd., 1407 SOFIA,
Tel. [phone], Fax. [phone]

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,
Tel. [phone]

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. [phone], Fax. [phone]

Colombia: see South America
Czech Republic: see Austria
Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

Tel. [phone], Fax. [phone]
Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. [phone], Fax. [phone]
France: 4 Rue du Port-aux-Vins, BP317, 92156 SURESNES Cedex,

Tel. [phone], Fax. [phone]
Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. [phone], Fax. [phone]
Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,

Tel. [phone], Fax. [phone]

Hungary: seeAustria
India: Philips INDIA Ltd, Band Box Building, 2nd floor,

254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,
Tel. [phone], Fax. [phone]

Indonesia: see Singapore
Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. [phone], Fax. [phone]
Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,

TEL AVIV 61180, Tel. [phone], Fax. [phone]
Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,

20124 MILANO, Tel. [phone], Fax. [phone]
Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,

Tel. [phone], Fax. [phone]
Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,

Tel. [phone], Fax. [phone]
Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,

Tel. [phone], Fax. [phone]
Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,

Tel. [phone]

Middle East: see Italy

Netherlands: Postbus 90050, 5600PB EINDHOVEN, Bldg. VB,

Tel. [phone], Fax. [phone]
New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. [phone], Fax. [phone]
Norway: Box 1, Manglerud 0612, OSLO,

Tel. [phone], Fax. [phone]
Philippines: Philips Semiconductors Philippines Inc.,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. [phone], Fax. [phone]

Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,
Tel. [phone], Fax. [phone]

Portugal: see Spain
Romania: see Italy
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. [phone], Fax. [phone]
Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. [phone], Fax. [phone]

Slovakia: see Austria
Slovenia: see Italy
South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,
Tel. [phone], Fax. [phone]

South America: Rua do Rocio 220, 5th floor, Suite 51,
04552-903 São Paulo, SÃO PAULO - SP, Brazil,
Tel. [phone], Fax. [phone]

Spain: Balmes 22, 08007 BARCELONA,
Tel. [phone], Fax. [phone]

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,
Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,
Tel. [phone], Fax. [phone]

Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,
TAIPEI, Taiwan Tel. [phone], Fax. [phone]

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,
Tel. [phone], Fax. [phone]

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,
Tel. [phone], Fax. [phone]

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. [phone], Fax. [phone]

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. [phone]

Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. [phone], Fax.[phone]

For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. [phone]

© Philips Electronics N.V. 1997 SCA55
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.

Internet: http://www.semiconductors.philips.com

Printed in The Netherlands 117047/00/02/pp8 Date of release: 1997 Sep 04 Document order number: 9397 750 02839