
2N2955
PNP SILICON TRANSISTOR
UNISONICTECHNOLOGIESCO.,LTD
2 of 2
www.unisonic.com.tw
QW-R205-004,Ca
ABSOLUTE MAXIMUM RATINGS ( Ta=25°C ,unless otherwise specified )
PARAMETERS
SYMBOL
RATINGS
UNITS
Collector-Base Voltage
VCBO
100
V
Collector-Emitter Voltage
VCEO
60
V
Emitter-Base Voltage
VEBO
7
V
Collector-Emitter Voltage
VCEV
70
V
Collector Current
IC
15
A
Collector Peak Current(1)
ICM
15
A
Base Current
IB
7
A
Base Peak Current(1)
IBM
15
A
Total Dissipation at Ta=25
°C
PD
115
W
Max. Operating Junction Temperature
TJ
+200
°C
Storage Temperature
TSTG
-65 ~ 200
°C
Note 1.Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OFF CHARACTERISTICS
Collector-Emitter Sustaining
Voltage
VCEO(SUS) IC=200mA, IB=0V
60
V
Collector-Emitter Sustaining
Voltage
VCER(SUS) IC=0.2 A, RBE=100
70
V
Collector Cut-off Current
ICEO
VCE=30V,IB=0
0.7
mA
Collector Cut-off Current
ICEX
VCE=100V, VBE(OFF)=1.5V
VCE=100V, VBE(OFF)=1.5V,
Ta=150
°C
1.0
5.0
mA
Emitter Cut-off Current
IEBO
VBE=7V, IC=0
5.0
mA
ON CHARACTERISTICS
DC Current Gain(Note 2)
hFE
IC=4A,VCE=4V,
IC=10A,VCE=4V
20
5
70
Collector-Emitter Saturation
Voltage
VCE(SAT)
IC=4A, IB=400mA
IC=10A, IB=3.3A
1.1
3.0
V
Base-Emitter On Voltage
VBE(ON) IC=4A, VCE=4V
1.5
V
SECOND BREAKDOWN
Second Breakdown Collector with
Base Forward Biased
Is/b
VCE=60V, T=1.0s, Non-repetitive
2.87
A
DYNAMIC CHARACTERISTICS
Current Gain-Bandwidth Product
fT
IC=0.5A, VCE=10V, f=1MHz
2.5
MHz
Small-Signal Current Gain
hFE
IC=1A, VCE=4V, f=1kHz
15
120
Small-Signal Current Gain
Cut-off Frequency
fhFE
IC=1A, VCE=4V, f=1kHz
10
kHz
Note 2. Pulse Test: PW≦300
μs, Duty Cycle≦2%
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.