CMS03 TOSHIBA Schottky Barrier Rectifier Schottky Barrier Type CMS03 Switching Mode Power Supply Applications Unit: mm Portable Equipment Battery Applications Repetitive peak reverse voltage : V = 30 V RRM Average forward current : I = 3 A F (AV) Peak forward voltage : V = 0.45 V (max) FM Suitable for compact assembly due to small surface-mount package TM M FLAT (Toshiba package name) Absolute Maximum Ratings (Ta = 25C) Characteristics Symbol Rating Unit Repetitive peak reverse voltage V 30 V RRM Average forward current I 3 (Note 1) A F (AV) Non-repetitive peak forward surge current I 40 (50 Hz) A FSM Junction temperature T 40 to 150 C j Storage temperature T 40 to 150 C stg Note 1: T = 117.6C Rectangular waveform ( = 180), V = 15 V R Ta = 28.4C Device mounted on a ceramic board JEDEC Board size : 50 mm 50 mm JEITA Soldering land size : 2 mm 2 mm Board thickness : 0 .64 mm TOSHIBA 3-4E1A Note 2: Using continuously under heavy loads (e.g. the application of Weight: 0.023 g (typ.) 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). Electrical Characteristics (Ta = 25C) Characteristics Symbol Test Condition Min Typ. Max Unit V I = 0.5 A (pulse test) 0.35 FM (1) FM Peak forward voltage V I = 1 A (pulse test) 0.37 V FM (2) FM V I = 3 A (pulse test) 0.42 0.45 FM (3) FM I V = 5 V (pulse test) 3 RRM (1) RRM Repetitive peak reverse current A I V = 30 V (pulse test) 30 500 RRM (2) RRM Junction capacitance C V = 10 V, f = 1 MHz 190 pF j R Device mounted on a ceramic board board size : 50 m 5m0 mm 60 soldering land size : 2 mm 2 mm board thickness : 0.64 mm Thermal resistance(junction to ambient) R th (j-a) Device mounted on a glass-epoxy board C/W board size : 50 m 5m0 mm 135 soldering land size : 6 mm 6 mm board thickness : 1.6 mm Thermal resistance (junction to lead) R 16 th (j-) Start of commercial production 2000-07 1 2018-04-04 CMS03 Marking Abbreviation Code Part No. S3 CMS03 Land pattern dimensions for reference only Unit: mm 1.4 3.0 1.4 Handling Precaution 1) Schottky barrier diodes (SBDs) have reverse current greater than other types of diodes. This makes SBDs more vulnerable to damage due to thermal runaway under high-temperature and high-voltage conditions. Thus, both forward and reverse power losses of SBDs should be considered for thermal and safety design. 2) The absolute maximum ratings are rated values that must not be exceeded during operation, even for an instant. The following are the recommended general derating methods for designing a circuit board using this device. VRRM : Use this rating with reference to 1) above. VRRM has a temperature coefficient of 0.1%/ at low temperatures. Take this coefficient into account when designing a circuit board that will be operated in a low-temperature environment. IF(AV) : We recommend that the worst-case current be no greater than 80% of the absolute maximum rating of IF(AV) and that the worst-case junction temperature, Tj, be kept below 120. When using this device, allow margins, referring to the Ta(max)-IF(AV) curve. IFSM : This rating specifies peak non-repetitive forward surge current. This only applies to an abnormal operation, which seldom occurs during the lifespan of a device. Tj : Derate device parameters in proportion to this rating in order to ensure high reliability. We recommend that the junction temperature (Tj) of a device be kept below 120 . 3) Thermal resistance (junction-to-ambient) varies with the mounting conditions of a device on a circuit board. An appropriate thermal resistance value should be used, considering the heatsink, circuit board design and land pattern dimensions (provided for reference only). 4) For other design considerations, see the Rectifiers databook or the Toshiba website. 2 2018-04-04 2.1