2551

NTE2551 (NPN) & NTE2552 (PNP)
Silicon Complementary Transistors
Darlington Driver, Switch
TO−220 Full Pack
Features:
D High DC Current Gain
D Low Saturation Voltage
D High Current Capacity and Wide ASO
Applications:
D Motor Drivers
D Printer Hammer Drivers
D Relay Drivers
D Voltage Regulator Control
Absolute Maximum Ratings: (TA = +25C unless otherwise specified)
Collector−Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70V
Collector−Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V
Emitter−Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Collector Current, IC
Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10A
Peak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15A
Collector Power Dissipation, PC
TA = +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W
TC = +25C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30W
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55 to +150C
Electrical Characteristics: (TA = +25C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Collector Cut−Off Current
ICBO
VCB = 40V, IE = 0
−
−
0.1
mA
Emitter Cut−Off Current
IEBO
VEB = 5V, IC = 0
−
−
3.0
mA
DC Current Gain
Gain−Bandwidth Product
Collector−Emitter Saturation Voltage
hFE (1)
VCE = 2V, IC = 5A
fT
VCE = 5V, IC = 5A
VCE(sat) IC = 5A, IB = 10mA
Base−Emitter Saturation Voltage
VBE(sat) IC = 5A, IB = 10mA
Collector−Base Breakdown Voltage
V(BR)CBO IC = 5mA, IE = 0
Collector−Emitter Breakdown Voltage V(BR)CEO IC = 50mA, RBE = 
2000 5000
−
−
20
−
MHz
−
0.9
1.5
V
−
70
60
−
−
−
2.0
−
−
V
V
V
Rev. 6−15
Electrical Characteristics (Cont’d): (TA = +25C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
−
0.6
−
s
−
0.5
−
s
−
3.0
−
s
−
1.5
−
s
−
1.8
−
s
−
1.7
−
s
Switching Characteristics
Turn−On Time
NTE2551
ton
NTE2552
Storage Time
NTE2551
tstg
VCC = 20V, IC = 5A,
IB1 = −IB2 = 500mA,
Pulse Width = 50s
Duty Cycle  1%
NTE2552
Fall Time
NTE2551
tf
NTE2552
NTE2551
(NPN)
C
B
.402 (10.2) Max
.173 (4.4)
Max
.224 (5.7) Max
.114
(2.9)
Max
.122 (3.1)
Dia
E
.295
(7.5)
.165
(4.2)
.669
(17.0)
Max
B
NTE2552
(PNP)
C
E
.531
(13.5)
Min
C
B
.100 (2.54)
.059
(1.5)
Max
E
NOTE: Tab is isolated