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DATA SHEET
SILICON TRANSISTOR
2SA1897
PNP SILICON EPITAXIAL TRANSISTOR FOR LOW-FREQUENCY POWER AMPLIFIERS AND MID-SPEED SWITCHING
The 2SA1897 features a low saturation voltage and is available for high current control in small dimension. This transistor is ideal for high efficiency DC/DC converters due to fast switching speed.
PACKAGE DRAWING (UNIT: mm)
FEATURES
* High current capacitance * Low collector saturation voltage and high hFE * Insulation type package supportable for radial taping
QUALITY GRADES
* Standard Please refer to "Quality Grades on NEC Semiconductor Devices" (Document No. C11531E) published by NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
ABSOLUTE MAXIMUM RATINGS (Ta = 25C)
Parameter Collector to base voltage Collector to emitter voltage Emitter to base voltage Collector current (DC) Collector current (pulse) Symbol VCBO VCEO VEBO IC(DC) IC(pulse) TC = 25C PW 10 ms, duty cycle 50 % TC = 25C Conditions Ratings -30 -20 -10 -5.0 -8.0 -0.5 1.0 TC = 25C 6.0 150 -55 to +150 Unit V V V A A
Base current (DC) Total power dissipation Total power dissipation Junction temperature Storage temperature
IB(DC) PT PT Tj Tstg
A W W C 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. D16145EJ1V0DS00 (1st edition) Date Published April 2002 N CP(K) Printed in Japan
(c)
2002 1998
2SA1897
ELECTRICAL CHARACTERISTICS (Ta = 25C)
Parameter Collector cutoff current Emitter cutoff current DC current gain DC current gain Collector saturation voltage Base saturation voltage Gain bandwidth product Output capacitance Turn-on time Storage time Fall time Symbol ICBO IEBO hFE1 hFE2 VCE(sat) VBE(sat) fT Cob ton tstg tf Conditions VCB = -20 V, IE = 0 VEB = -8.0 V, IC = 0 VCE = -2.0 V, IC = -0.5 A VCE = -2.0 V, IC = -4.0 A IC = -4.0 A, IB = -50 mA IC = -4.0 A, IB = -50 mA VCE = -5.0 V, IE = 1.5 A VCB = -10 V, IE = 0, f = 1.0 MHz IC = -5.0 A, VCC = -10 V IB1 = -IB1 = -125 mA, RL = 2.0 , 200 160 -230 -0.9 180 220 400 300 60 -250 -1.2 MIN. TYP. MAX. 1.0 1.0 600 Unit
A A
- - mV V MHz pF ns ns ns
hFE CLASSIFICATION
Marking hFE1 L 200 to 400 K 300 to 600
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Data Sheet D16145EJ1V0DS
2SA1897
TYPICAL CHARACTERISTICS (Ta = 25C)
Data Sheet D16145EJ1V0DS
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2SA1897
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Data Sheet D16145EJ1V0DS
2SA1897
[MEMO]
Data Sheet D16145EJ1V0DS
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2SA1897
* The information in this document is current as of July, 2001. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all products and/or types are available in every country. Please check with an NEC 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 prior written consent of NEC. NEC assumes no responsibility for any errors that may appear in this document. * NEC 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 semiconductor 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 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 customer's equipment shall be done under the full responsibility of customer. NEC assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. * While NEC endeavours to enhance the quality, reliability and safety of NEC semiconductor 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 semiconductor products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment, and anti-failure features. * NEC semiconductor products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to semiconductor products developed based on a customer-designated "quality assurance program" for a specific application. The recommended applications of a semiconductor product depend on its quality grade, as indicated below. Customers must check the quality grade of each semiconductor 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 semiconductor products is "Standard" unless otherwise expressly specified in NEC's data sheets or data books, etc. If customers wish to use NEC semiconductor products in applications not intended by NEC, they must contact an NEC sales representative in advance to determine NEC's willingness to support a given application. (Note) (1) "NEC" as used in this statement means NEC Corporation and also includes its majority-owned subsidiaries. (2) "NEC semiconductor products" means any semiconductor product developed or manufactured by or for NEC (as defined above).
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