STTH1R04 Datasheet 1 A - 400 V ultrafast recovery diode A Features K Negligible switching losses A A Low forward voltage drop High junction temperature ECOPACK compliant K K SMA SMB Applications Switching diode Telecom power A Description K The STTH1R04 series uses ST s new 400 V planar Pt doping technology. The STTH1R04 is specially suited for switching mode base drive and transistor circuits. Packaged in SMA, SMB and DO-15, the STTH1R04 is ideal for use low voltage, high DO-15 frequency inverters, free wheeling and polarity protection Product status STTH1R04 Product summary Symbol Value I 1 A F(AV) V 400 V RRM T 175 C j(max.) V 0.9 V F(typ.) trr(typ.) 14 ns DS5848 - Rev 4 - March 2019 www.st.com For further information contact your local STMicroelectronics sales office.STTH1R04 Characteristics 1 Characteristics Table 1. Absolute ratings (limiting values at 25 C, unless otherwise specified) Symbol Parameter Value Unit V Repetitive peak reverse voltage 400 V RRM T = 125 C SMA L I Average forward current = 0.5, square wave SMB T = 140 C 1 A F(AV) L DO-15 T = 105 C L I Surge non repetitive forward current t = 10 ms sinusoidal 30 A FSM p T Storage temperature range -65 to +175 C stg T Operating junction temperature +175 C j Table 2. Thermal resistance parameter Symbol Parameter Max. value Unit SMA 35 Junction to lead R SMB 25 C/W th(j-l) Junction to lead Lead length = 10 mm on infinite heatsink DO-15 50 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 - 5 A j (1) I Reverse leakage current V = V R R RRM T = 125 C - 5 50 A j T = 25 C - 1.50 j (2) V T = 100 C I = 1 A Forward voltage drop - 1.0 1.25 V F j F T = 150 C - 0.9 1.15 j 1. Pulse test: t = 5 ms, < 2% p 2. Pulse test: t = 380 s, < 2% p To evaluate the conduction losses, use the following equation: 2 P = 0.9 x I + 0.250 x I F(AV) F (RMS) For more information, please refer to the following application notes related to the power losses : AN604: Calculation of conduction losses in a power rectifier AN4021: Calculation of reverse losses on a power diode DS5848 - Rev 4 page 2/14