DS30105 Rev. 5 - 2

1 of 2

MMBT4124

Features

Maximum Ratings

°C unless otherwise specified

A

E

J

L

TOP VIEW

M

B C

H

G

D

K

C

B

E

Mechanical Data

MMBT4124

NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR

·

Epitaxial Planar Die Construction

·

Complementary PNP Type Available

(MMBT4126)

·

Ideal for Medium Power Amplification and

Switching

·

Case: SOT-23, Molded Plastic

·

Case Material - UL Flammability Rating

Classification 94V-0

·

Moisture sensitivity: Level 1 per J-STD-020A

·

Terminals: Solderable per MIL-STD-202,

Method 208

·

Terminal Connections: See Diagram

·

Marking (See Page 2): K1B

·

Ordering & Date Code Information: See Page 2

·

Weight: 0.008 grams (approx.)

Characteristic

Symbol

MMBT4124

Unit

Collector-Base Voltage

30

V

Collector-Emitter Voltage

25

V

Emitter-Base Voltage

5.0

V

Collector Current - Continuous (Note 1)

200

mA

Power Dissipation (Note 1)

300

mW

Thermal Resistance, Junction to Ambient (Note 1)

417

°C/W

Operating and Storage and Temperature Range

-55 to +150

°C

Notes:

1. Device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch; pad layout as shown on Diodes Inc. suggested pad layout

document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.

SOT-23

Dim

Min

Max

A

0.37

0.51

B

1.20

1.40

C

2.30

2.50

D

0.89

1.03

E

0.45

0.60

G

1.78

2.05

H

2.80

3.00

J

0.013

0.10

K

0.903

1.10

L

0.45

0.61

M

0.085

0.180

a

0

°

8

°

All Dimensions in mm

E

B

C