2SC4915 TOSHIBA Transistor Silicon NPN Epitaxial Planar Type 2SC4915 High Frequency Amplifier Applications Unit: mm FM, RF, MIX, If Amplifier Applications • Small reverse transfer capacitance: Cre = 0.55 pF (typ.) • Low noise figure: NF = 2.3dB (typ.) Absolute Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Collector-base voltage VCBO 40 V Collector-emitter voltage VCEO 30 V Emitter-base voltage VEBO 4 V Collector current IC 20 mA Base current IB 4 mA Collector power dissipation PC 100 mW Junction temperature Tj 125 °C JEDEC ― Storage temperature range Tstg −55 to 125 °C JEITA ― Note: Using continuously under heavy loads (e.g. the application of high TOSHIBA 2-2H1A temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the Weight: 2.4 mg (typ.) 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). Electrical Characteristics (Ta = 25°C) Characteristics Symbol Test Condition Min Typ. Max Unit Collector cut-off current ICBO VCB = 40 V, IE = 0 A ⎯ ⎯ 0.1 μA Emitter cut-off current IEBO VEB = 4 V, IC = 0 A ⎯ ⎯ 0.5 μA hFE DC current gain VCE = 6 V, IC = 1 mA 40 ⎯ 200 (Note) Reverse transfer capacitance Cre VCB = 6 V, f = 1 MHz ⎯ 0.55 ⎯ pF Transition frequency fT VCE = 6 V, IC = 1 mA 260 550 ⎯ MHz Collector-base time constant Cc･rbb’ VCE = 6 V, IE = −1 mA, f = 30 MHz ⎯ ⎯ 20 ps Noise figure NF VCC = 6 V, IE = −1 mA, ⎯ 2.3 5.0 dB Power gain Gpe f = 100 MHz, Figure 1 17 23 ⎯ dB Note: hFE classification R: 40 to 80, O: 70 to 140, Y: 100 to 200 Start of commercial production 1992-02 1 2014-03-01

2SC4915 L1: 0.8 mmφ silver plated copper wire, 4 T, 10 mm ID, 8 mm length Figure 1 NF, G Test Circuit pe Marking 2 2014-03-01

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2SC4915 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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Product and related software and technology may be controlled under the applicable export laws and regulations including, without limitation, the Japanese Foreign Exchange and Foreign Trade Law and the U.S. Export Administration Regulations. Export and re-export of Product or related software or technology are strictly prohibited except in compliance with all applicable export laws and regulations. • Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA ASSUMES NO LIABILITY FOR DAMAGES OR LOSSES OCCURRING AS A RESULT OF NONCOMPLIANCE WITH APPLICABLE LAWS AND REGULATIONS. 5 2014-03-01