MMBT6427LT1
Preferred Device
Darlington Transistor
NPN Silicon
Features
• Pb−Free Package is Available
http://onsemi.com
MAXIMUM RATINGS
COLLECTOR 3
Rating
Collector−Emitter Voltage
Collector−Base Voltage
Emitter−Base Voltage
Symbol
Value
40
Unit
Vdc
BASE
1
V
CEO
V
CBO
V
EBO
40
Vdc
12
Vdc
EMITTER 2
Collector Current − Continuous
I
500
mAdc
C
THERMAL CHARACTERISTICS
3
Characteristic
Symbol
Max
Unit
Total Device Dissipation FR−5 Board,
P
1
D
(Note 1) T = 25°C
225
1.8
mW
mW/°C
A
2
Derate above 25°C
Thermal Resistance, Junction−to−Ambient
R
q
JA
556
°C/W
Total Device Dissipation Alumina Substrate,
P
SOT−23 (TO−236)
CASE 318
D
(Note 2) T = 25°C
300
2.4
mW
mW/°C
A
Derate above 25°C
STYLE 6
Thermal Resistance, Junction−to−Ambient
Junction and Storage Temperature
R
417
°C/W
°C
q
JA
T , T
J
−55 to +150
MARKING DIAGRAM
stg
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. FR−5 = 1.0 x 0.75 x 0.062 in.
2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.
1V M G
G
1
1V = Device Code
M
= Date Code*
G
= Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation and/or overbar may
vary depending upon manufacturing location.
ORDERING INFORMATION
†
Device
Package
Shipping
MMBT6427LT1
SOT−23 3,000 / Tape & Reel
MMBT6427LT1G SOT−23 3,000 / Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Preferred devices are recommended choices for future use
and best overall value.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
February, 2006 − Rev. 2
MMBT6427LT1/D