2N4921, 2N4922, 2N4923
2N4923 is a Preferred Device
Medium−Power Plastic
NPN Silicon Transistors
These high−performance plastic devices are designed for driver
circuits, switching, and amplifier applications.
Features
http://onsemi.com
• Low Saturation Voltage − V
= 0.6 Vdc (Max) @ I = 1.0 A
C
CE(sat)
1.0 AMPERE
• Excellent Power Dissipation Due to Thermopad Construction −
P = 30 W @ T = 25_C
D
C
GENERAL PURPOSE
POWER TRANSISTORS
40−80 VOLTS, 30 WATTS
• Excellent Safe Operating Area
• Gain Specified to I = 1.0 A
C
• Complement to PNP 2N4918, 2N4919, 2N4920
• Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector−Emitter Voltage
2N4921
2N4922
2N4923
V
40
60
80
Vdc
CEO
TO−225
CASE 77
STYLE 1
Collector−Emitter Voltage
Emitter Base Voltage
2N4921
2N4922
2N4923
V
40
60
80
Vdc
CB
EB
3
2
1
V
5.0
Vdc
Adc
MARKING DIAGRAM
Collector Current − Continuous (Note 1)
I
1.0
3.0
C
Base Current − Continuous
I
1.0
Adc
B
1
Total Power Dissipation @ T = 25_C
P
30
0.24
W
C
D
YWW
2
N492xG
Derate above 25_C
mW/_C
_C
Operating and Storage Junction
Temperature Range
T , T
J
–65 to +150
stg
THERMAL CHARACTERISTICS (Note 2)
Y
= Year
Characteristic
Symbol
Max
Unit
WW
= Work Week
Thermal Resistance, Junction−to−Case
q
4.16
_C/W
JC
2N492x = Device Code
x = 1, 2, or 3
G
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.
= Pb−Free Package
ORDERING INFORMATION
1. The 1.0 A maximum I value is based upon JEDEC current gain requirements.
C
Device
Package
Shipping
The 3.0 A maximum value is based upon actual current handling capability of
the device (see Figures 5 and 6).
2. Recommend use of thermal compound for lowest thermal resistance.
2N4921
TO−225
500 Units / Box
500 Units / Box
2N4921G
TO−225
(Pb−Free)
*Indicates JEDEC Registered Data.
2N4922
TO−225
500 Units / Box
500 Units / Box
2N4922G
TO−225
(Pb−Free)
2N4923
TO−225
500 Units / Box
500 Units / Box
2N4923G
TO−225
(Pb−Free)
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Preferred devices are recommended choices for future use
and best overall value.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
January, 2006 − Rev. 11
2N4921/D