STPS340 Datasheet 40 V, 3 A power Schottky rectifier Features Very small conduction losses Negligible switching losses Low forward voltage drop Low thermal resistance Extremely fast switching Surface mount package Avalanche rated ECOPACK2 component Applications Telecom power supply Set-top box power supply TV power supply Battery charger Description Single chip Schottky rectifier suited for switch mode power supplies and high frequency DC to DC converters. Packaged in SMA Flat Notch, SMB, SMB Flat, SMC and DPAK, the STPS340 is ideal Product status for surface mounting and used in low voltage, high frequency inverters, free wheeling and polarity protection applications. STPS340 Product summary Symbol Value I F(AV) 3 A V 40 V RRM T 150 C j(max.) V 0.52 V F(typ.) DS0792 - Rev 13 - October 2019 www.st.com For further information contact your local STMicroelectronics sales office.STPS340 Characteristics 1 Characteristics Table 1. Absolute ratings (limiting values at 25 C, unless otherwise specified) Symbol Parameter Value Unit V Repetitive peak reverse voltage 40 V RRM I Forward rms current DPAK 6 A F(RMS) T = 105 C SMA Flat Notch L T = 95 C SMB L I Average forward current, = 0.5, square wave SMB Flat T = 115 C 3 A F(AV) L SMC T = 105 C L DPAK T = 135C C SMA Flat Notch 105 A I t = 10 ms sinusoidal Surge non repetitive forward current FSM p All others 75 A P Repetitive peak avalanche power t = 10 s, T = 125 C 90 W ARM p j T Storage temperature range -65 to +150 C stg (1) T j Maximum operating junction temperature +150 C 1. (dP /dT ) < (1/R ) condition to avoid thermal runaway for a diode on its own heatsink. tot j th(j-a) Table 2. Thermal resistance parameter Symbol Parameter Max. value Unit SMA Flat Notch 20 SMB 25 R Junction to lead th(j-l) SMB Flat 15 C/W SMC 20 R Junction to case DPAK 5.5 th(j-c) For more information, please refer to the following application note : AN5088 : Rectifiers thermal management, handling and mounting recommendations Table 3. Static electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit T = 25 C - 20 A j (1) I V = V Reverse leakage current R R RRM T = 125 C - 2 10 mA j T = 25 C - 0.63 j I = 3 A F T = 125 C - 0.52 0.57 j (1) V Forward voltage drop V F T = 25 C - 0.84 j I = 6 A F T = 125 C - 0.63 0.72 j 1. Pulse test: t = 380 s, < 2% p DS0792 - Rev 13 page 2/19