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The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
©
2002
The 2SA1647 is a mold power transistor developed for high-
speed switching and features a very low collector-to-emitter
saturation voltage.
This transistor is ideal for use in switching regulators, DC/DC
converters, motor drivers, solenoid drivers, and other low-voltage
power supply devices, as well as for high-current switching.
FEATURES
• Available for high-current control in small dimension
• Z type is a lead processed product and is deal for mounting a
hybrid IC.
• Low collector saturation voltage:
V
CE(sat)
= −0.3 V MAX. (@I
C
= −3 A)
• Fast switching speed:
t
f
= 0.4
µ
s MAX. (@I
C
= −3 A)
• High DC current gain and excellent linearity
ABSOLUTE MAXIMUM RATINGS (T
A
= 25°
°°
°C)
Parameter Symbol Ratings Unit
Collector to base voltage V
CBO
−150
V
Collector to emitter voltage V
CEO
−100
V
Base to emitter voltage V
EBO
−7.0
V
Collector current (DC) I
C(DC)
−5.0
A
Collector current (pulse) I
C(pulse)
*
−10
A
Base current (DC) I
B(DC)
−2.5
A
Total power dissipation
P
T
(Tc = 25 °C)
18 W
Total power dissipation
P
T
(T
A
= 25 °C)
1.0**, 2.0*** W
Junction temperature T
j
150
°C
Storage temperature T
stg
−55 to +150 °C
PACKAGE DRAWING (UNIT: mm)
(OHFWURGH&RQQHFWLRQ
%DVH
&ROOHFWRU
(PLWWHU
*: PW ≤ 10 ms, duty cycle ≤ 50%
**: Printing board mounted
***: 7.5 mm
× 0.7 mm ceramic board mounted