April 1991

5

Philips Semiconductors

Product specification

N-channel dual-gate MOS-FET

BF991

PACKAGE OUTLINE

DEFINITIONS

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.

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.

Fig.3 SOT143.

Dimensions in mm.

See also

Soldering recommendations.

handbook, full pagewidth

MBC845

10

max

o

10

max

o

30

max

o

1.1

max

0.75

0.60

0.150

0.090

0.1

max

43

2

M

0.1

AB

0

0.1

0.48

TOP VIEW

1.4

1.2

2.5

max

3.0

2.8

M

0.2

AB

A

B

1.9

1

0

0.1

0.88

1.7