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DATA SHEET
DARLINGTON POWER TRANSISTOR
2SA1841
PNP SILICON EPITAXIAL TRANSISTOR (DARLINGTON CONNECTION) FOR HIGH-SPEED SWITCHING
DESCRIPTION
The 2SA1841 is a high-speed Darlington power transistor. This transistor is ideal for high-precision control such as PWM control for pulse motors brushless motors in OA and FA equipment. In addition, this transistor features a package that can be automounted in radial taping specifications, thus contributing to mounting cost reduction.
ORDERING INFORMATION
PART NUMBER 2SA1841 PACKAGE MP-10
FEATURES
* Auto-mounting possible in radial taping specifications * Resin-molded insulation type package with power rating of 1.8 W in stand-alone conditions * High DC current amplifiers due to Darlington connection hFE = 4000 to 20000 (VCE = -2.0 V, IC = -4.0 A) * On-chip C-to-E reverse diode * Fast switching speed
ABSOLUTE MAXIMUM RATINGS (TA = 25C)
Collector to Base Voltage Collector to Emitter Voltage Emitter to Base Voltage Collector Current (DC) Collector Current (pulse) Base Current (DC) Total Power Dissipation (TA = 25C) Junction Temperature Storage Temperature Note PW 10 ms, Duty Cycle 2% VCBO VCEO VEBO IC(DC) IC(pulse) PT Tj Tstg
Note
-100 -100 -8.0 -8.0 -16 -0.8 1.8 150 -55 to +150
V V V A A A W C C
IB(DC)
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 products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information.
Document No. D15590EJ3V0DS00 (3rd edition) Date Published July 2004 NS CP(K) Printed in Japan
The mark shows major revised points.
2002
2SA1841
ELECTRICAL CHARACTERISTICS (TA = 25C)
CHARACTERISTICS Collector Cut-off Current Emitter Cut-off Current DC Current Gain
Note
SYMBOL ICBO IEBO hFE1 hFE2
TEST CONDITIONS VCB = -100 V, IE = 0 A VEB = -5.0 V, IC = 0 A VCE = -2.0 V, IC = -4.0 A VCE = -2.0 V, IC = -8.0 A IC = -4.0 A, IB = -4.0 mA IC = -4.0 A, IB = -4.0 mA IC = -4.0 A IB1 = -IB2 = -4.0 mA RL = 12.5 , VCC = -50 V
MIN.
TYP.
MAX. -1.0 -5.0
UNIT
A
mA
4000 500
20000
Collector Saturation Voltage Base Saturation Voltage Turn-on Time Storage Time Fall Time
Note
VCE(sat) VBE(sat) ton tstg tf
-1.5 -2.0 0.2 1.5 0.7
V V
Note
s s s
Note Pulsed test PW 350 ms, Duty Cycle 2% hFE CLASSIFICATION
Marking hFE1 L 4000 to 10000 K 8000 to 20000
SWITCHING TIME (ton, tstg, tf) TEST CIRCUIT
RL VIN IB1 T.U.T. IB2 PW
. PW =. 50 s . VBB =. -5 V
IC VCC
Base current waveform
IB2 IB1
Collector current waveform
10%
IC
90%
Duty Cycle 2%
ton
tstg tf
2
Data Sheet D15590EJ3V0DS
2SA1841
TYPICAL CHARACTERISTICS (TA = 25C)
Total Power Dissipation PT (W)
Ambient Temperature Ta (C)
IC Derating dT (%)
Ambient Temperature Ta (C)
Single pulse
Transient Thermal Resistance rth(j-a)(t) (C/W)
Collector Current IC (A)
Collector to Emitter Voltage VCE (V)
Pulse Width PW (s)
Pulse test
Collector Current IC (A)
Collector to Emitter Voltage VCE (V)
DC Current Gain hFE
Collector Current IC (A)
Data Sheet D15590EJ3V0DS
3
2SA1841
Collector Saturation Voltage VCE(sat) (V)
Pulse test
Base Saturation Voltage VBE(sat) (V)
Pulse test
Collector Current IC (A)
Collector Current IC (A)
Gain Bandwidth Product fT (MHz)
Collector Capacitance Cob (pF)
Collector Current IC (A)
Collector to Base Voltage VCB (V)
4
Data Sheet D15590EJ3V0DS
2SA1841
PACKAGE DRAWING (Unit: mm) MP-10
4.5 0.2 8.0 0.2
P2 P
TAPING SPECIFICATION
P
T
h h
A1
2.5 0.2
H1
H1
1
23
1.4 0.2
1.4 0.2
F1
F2
d
0.5 0.1
0.5 0.1
0.5 0.1
P0 D0
A1 A D0 d F1 F2 H H0 H1 h l1 P P0 P2 P T W W0 W1 W2
8.0 0.2 13.0 0.2 4.0 0.2 0.5 0.1 2.5 +0.4 -0.1 2.5 +0.4 -0.1 20.0 MAX. 16.0 0.5 32.2 MAX. 0 1.0 2.5 MIN. 12.7 1.0 12.7 0.3 6.35 0.5 0 1.3 4.5 0.2 +1.0 18.0 -0.5 5.0 MIN. 9.0 0.5 0.7 MIN.
13.0 0.2
H1
A
W0
W2 W1 W
2.5 TYP.
2.5 TYP.
1: Base 2: Collector 3: Emitter
EQUIVALENT CIRCUIT
2
1
R1 R1 = 3.0 k . . R2 = 300 .
.
R2 3
1. Base 2. Collector 3. Emitter
l1
Data Sheet D15590EJ3V0DS
5
2SA1841
* The information in this document is current as of July, 2004. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC Electronics data sheets or data books, etc., for the most up-to-date specifications of NEC Electronics products. Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information. * No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Electronics. NEC Electronics assumes no responsibility for any errors that may appear in this document. * NEC Electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of NEC Electronics products listed in this document or any other liability arising from the use of such products. No license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Electronics or others. * Descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. NEC Electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. * While NEC Electronics endeavors to enhance the quality, reliability and safety of NEC Electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. To minimize risks of damage to property or injury (including death) to persons arising from defects in NEC Electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. * NEC Electronics products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to NEC Electronics products developed based on a customerdesignated "quality assurance program" for a specific application. The recommended applications of an NEC Electronics product depend on its quality grade, as indicated below. Customers must check the quality grade of each NEC Electronics product before using it in a particular application. "Standard": Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. "Special": Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). "Specific": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. The quality grade of NEC Electronics products is "Standard" unless otherwise expressly specified in NEC Electronics data sheets or data books, etc. If customers wish to use NEC Electronics products in applications not intended by NEC Electronics, they must contact an NEC Electronics sales representative in advance to determine NEC Electronics' willingness to support a given application. (Note) (1) "NEC Electronics" as used in this statement means NEC Electronics Corporation and also includes its majority-owned subsidiaries. (2) "NEC Electronics products" means any product developed or manufactured by or for NEC Electronics (as defined above).
M8E 02. 11-1

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