MMBT4401

SMALL SIGNAL TRANSISTORS (NPN)

FEATURES

¨ NPN Silicon Epitaxial Planar Transistor

for switching and amplifier applications.

¨ As complementary type, the PNP

transistor MMBT4403 is recommended.

¨ This transistor is also available in the TO-92 case with

the type designation 2N4401.

MECHANICAL DATA

Case: SOT-23 Plastic Package

Weight: approx. 0.008g

Marking code: 2X

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25¡C ambient temperature unless otherwise specified

SYMBOL

VALUE

UNIT

Collector-Base Voltage

60

Volts

Collector-Emitter Voltage

40

Volts

Emitter-Base Voltage

6.0

Volts

Collector Current-Continuous

600

mA

°C

225

mW

Derate above 25

°C

1.8

mW/

°C

°C

300

mW

Derate above 25

°C

2.4

mW/

°C

Thermal Resistance, Junction to Ambient

FR-5 Board

556

°C/W

Alumina Substrate

417

Junction Temperature

150

¡C

Storage Temperature Range

Ð55 to +150

¡C

*FR-5 = 1.0 x 0.75 x 0.062 in.

**Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.

.016 (0.4)

.037(0.95) .037(0.95)

.122 (3.1)

.016 (0.4)

.016 (0.4)

1

2

3

Top View

.102 (2.6)

.118 (3.0)

.094 (2.4)

SOT-23

2/18/99

Dimensions in inches and (millimeters)

Pin configuration

1 = Base, 2 = Emitter, 3 = Collector.

ADVANCED INFORMATION

ADVANCED INFORMATION