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Ordering number:EN4178A
N-Channel Junction FET
2SK1578
Capacitor Microphone Applications
Features
* Especially suited for use in audio, telephone capacitor microphones. * Excellent voltage characteristics. * Excellent transient characteristics. * Adoption of FBET process.
Package Dimensions
unit:mm 2034A
[2SK1578]
4.0 2.2
0.4 0.5
0.6
0.4
1.8 15.0
3.0
0.4
12 1.3
3 1.3
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Gate-to-Drain Voltage Gate Current Drain Current Allowable Power Dissipation Channel Temperature Storage Temperature Symbol VGDO IG ID PD Tj Tstg Conditions
3.0 3.8nom
1 : Source 2 : Gate 3 : Drain SANYO : SPA
0.7
0.7
Ratings -20 10 1 100 150 -55 to +150
Unit V mA mA mW
C C
Electrical Characteristics at Ta = 25C
Parameter Gate-to-Drain Breakdown Voltage Cutoff Voltage Zero-Gate Votlage Drain Current Forward Transfer Admittance Input Capacitance Reverse Transfer Capacitance Symbol V(BR)GDO IG=-100A VGS(off) IDSS | yfs | Ciss Crss VDS=5V, ID=1A VDS=5V, VGS=0 VDS=5V, VGS=0, f=1MHz VDS=5V, VDS=5V, VGS=0, f=1MHz VGS=0, f=1MHz Conditions Ratings min -20 -0.2 100* 0.4 1.2 4.1 0.88 -0.6 -1.5 800* typ max Unit V V A mS pF pF
* : The 2SK1578 is classified by IDSS as follows : (unit : A)
100 A 170 150 B 240 210 C 350 320
D
480
440
E
800
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
61599TH (KT)/72297TS (KOTO)/12094TH (KOTO) 8-7215 No.4178-1/4
2SK1578
Parameter Symbol Conditions Ratings min typ -3.0 -1.2 25 700 1.0 -110 -3.5 -1.0 max Unit
[Ta=25C, VCC=4.5V, RL=1k, CIN=15pF, See specified Test Circuit.] Voltage Gain GV VIN=10mV, f=1kHz Reduced Voltage Characteristics Frequency Characteristics Input Resistance Output Resistance Total Harmonic Distortion Output Noise Voltage GVV GVf ZIN ZO THD VNO VIN=10mV, f=1kHz, VCC=4.5 1.5V f=1kHz to 110Hz f=1kHz f=1kHz VIN=10mV, f=1kHz VIN=0, A curve
dB dB dB m % dB
Test Circuit
No.4178-2/4
2SK1578
No.4178-3/4
2SK1578
Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products(including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be expor ted without obtaining the expor t license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of June, 1999. Specifications and information herein are subject to change without notice.
PS No.4178-4/4

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