2SK879 TOSHIBA Field Effect Transistor Silicon N Channel Junction Type 2SK879 General Purpose and Impedance Converter and Condenser Microphone Applications * Unit: mm High breakdown voltage: VGDS = -50 V * High input impedance: IGSS = -1.0 nA (max) (VGS = -30 V) * Low noise: NF = 0.5dB (typ.) (RG = 100 k, f = 120 Hz) * Small package Absolute Maximum Ratings (Ta = 25C) Characteristics Symbol Rating Unit VGDS -50 V Gate current IG 10 mA Drain power dissipation PD 100 mW Junction temperature Tj 125 C Tstg -55 to 125 C Gate-drain voltage Storage temperature range Note: Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test report and estimated failure rate, etc). JEDEC JEITA SC-70 TOSHIBA 2-2E1B Weight: 0.006 g (typ.) Electrical Characteristics (Ta = 25C) Characteristics Gate cut-off current Gate-drain breakdown voltage Drain current Symbol Test Condition Min Typ. Max Unit IGSS VGS = -30 V, VDS = 0 -1.0 nA V (BR) GDS VDS = 0, IG = -100 A -50 V 0.3 6.5 mA VDS = 10 V, ID = 0.1 A -0.4 -5.0 V VDS = 10 V, VGS = 0, f = 1 kHz 1.2 mS IDSS VDS = 10 V, VGS = 0 (Note) Gate-source cut-off voltage VGS (OFF) Forward transfer admittance Yfs Input capacitance Ciss VDS = 10 V, VGS = 0, f = 1 MHz 8.2 pF Reverse transfer capacitance Crss VGD = -10 V, ID = 0, f = 1 MHz 2.6 pF Noise figure NF 0.5 dB VDS = 15 V, VGS = 0 RG = 100 k, f = 120 Hz Note: IDSS classification R: 0.30 to 0.75 mA, O: 0.60 to 1.40 mA, Y: 1.2 to 3.0 mA, GR: 2.6 to 6.5 mA Marking Start of commercial production 1987-05 1 2014-03-01 2SK879 2 2014-03-01 2SK879 3 2014-03-01 2SK879 RESTRICTIONS ON PRODUCT USE * Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively "Product") without notice. * This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with TOSHIBA's written permission, reproduction is permissible only if reproduction is without alteration/omission. * Though TOSHIBA works continually to improve Product's quality and reliability, Product can malfunction or fail. Customers are responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. Before customers use the Product, create designs including the Product, or incorporate the Product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant TOSHIBA information, including without limitation, this document, the specifications, the data sheets and application notes for Product and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the instructions for the application with which the Product will be used with or for. Customers are solely responsible for all aspects of their own product design or applications, including but not limited to (a) determining the appropriateness of the use of this Product in such design or applications; (b) evaluating and determining the applicability of any information contained in this document, or in charts, diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operating parameters for such designs and applications. TOSHIBA ASSUMES NO LIABILITY FOR CUSTOMERS' PRODUCT DESIGN OR APPLICATIONS. * PRODUCT IS NEITHER INTENDED NOR WARRANTED FOR USE IN EQUIPMENTS OR SYSTEMS THAT REQUIRE EXTRAORDINARILY HIGH LEVELS OF QUALITY AND/OR RELIABILITY, AND/OR A MALFUNCTION OR FAILURE OF WHICH MAY CAUSE LOSS OF HUMAN LIFE, BODILY INJURY, SERIOUS PROPERTY DAMAGE AND/OR SERIOUS PUBLIC IMPACT ("UNINTENDED USE"). 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