DATA SHEET
DARLINGTON POWER TRANSISTOR
2SA1840
PNP SILICON EPITAXIAL TRANSISTOR (DARLINGTON CONNECTION)
FOR HIGH-SPEED SWITCHING
The 2SA1840 is a high-speed Darlington power transistor. This transistor is ideal for high-precision control such
as PWM control for pulse motors or brushless motors in OA and FA equipment.
In addition, this transistor features a package that can be auto-mounted in radial taping specifications, thus
contributing to mounting cost reduction.
FEATURES
• Auto-mounting possible in radial taping specifications
• Resin-molded insulation type package with power rating of 1.8 W in stand-alone conditions
• On-chip C-to-E reverse diode
• Fast switching speed
ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Parameter
Collector to base voltage
Collector to emitter voltage
Emitter to base voltage
Collector current (DC)
Collector current (pulse)
Base current (DC)
Symbol
VCBO
VCEO
VEBO
IC(DC)
IC(pulse)*
IB(DC)
PT**
Ratings
−100
Unit
V
−100
V
−8.0
V
–
5.0
+
A
–
10
+
A
−0.5
1.8
A
Total power dissipation
Junction temperature
Storage temperature
W
°C
°C
Tj
150
−55 to +150
Tstg
* PW ≤ 300 µs, duty cycle ≤ 10%
** Ta = 25°C
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.
Document No. D15589EJ2V0DS00 (2nd edition)
Date Published April 2002 N CP(K)
Printed in Japan
2002
©