Teccor brand Thyristors 20 / 25 Amp Standard SCRs RoHS Sxx20x & Sxx25x Series Description Excellent unidirectional switches for phase control applications such as heating and motor speed controls. Standard phase control SCRs are triggered with few milliamperes of current at less than 1.5V potential. Features & Benefits RoHS-compliant Surge capability up to 350 A Glass passiv ated junctions A vailable in isolated TO-220, non-isolated Voltage capability up TO-220 and TO-263 to 1000 V packages. Agency Approval Applications Typical applications are AC solid-state switches, industrial Agency Agency File Number power tools, exercise equipment, white goods and E71639* commercial appliances. * - L Package Only Internally constructed isolated packages are offered for ease of heat sinking with highest isolation voltage. Main Features Schematic Symbol Symbol Value Unit I 20 & 25 A T(RMS) AK V /V 400 to 1000 V DRM RRM I 30 to 35 mA GT G Additional Information Datasheet Resources Samples Absolute Maximum Ratings 20A SCR Symbol Parameter Test Conditions Value Unit I RMS on-state current T = 80C 20 A T(RMS) C I Average on-state current Sxx20x & Sxx20L T = 80C 12.8 A T(AV) C single half cycle f = 50Hz 255 T (initial) = 25C J I Peak non-repetitive surge current A TSM single half cycle f = 60Hz 300 T (initial) = 25C J 2 2 2 I t I t Value for fusing t = 8.3 ms 374 A s p di/dt Critical rate of rise of on-state current f = 60Hz T = 125C 125 A/s J I Peak gate current T = 125C 3 A GM J P Average gate power dissipation T = 125C 0.6 W G(AV) J T Storage temperature range -40 to 150 C stg T Operating junction temperature range -40 to 125 C J 2019 Littelfuse, Inc Specifications are subject to change without notice. Revised: BO.12/10/20Teccor brand Thyristors 20 / 25 Amp Standard SCRs Absolute Maximum Ratings 25A SCR Symbol Parameter Test Conditions Value Unit Sxx25L: T =75C C I RMS on-state current 25 A T(RMS) Sxx25R/Sxx25N: T =100C C Sxx25L T = 75C C I Average on-state current 16 A T(AV) Sxx25R/Sxx25N T = 100C C single half cycle f = 50Hz 300 T (initial) = 25C J I Peak non-repetitive surge current A TSM single half cycle f = 60Hz 350 T (initial) = 25C J 2 2 2 I t I t Value for fusing t = 8.3 ms 510 A s p di/dt Critical rate of rise of on-state current f = 60Hz T = 125C 150 A/s J I Peak gate current T = 125C 3.5 A GM J P Average gate power dissipation T = 125C 0.8 W G(AV) J T Storage temperature range -40 to 150 C stg T Operating junction temperature range -40 to 125 C J Electrical Characteristics (T = 25C, unless otherwise specified) J Value Symbol Test Conditions Unit Sxx20L Sxx25x - MAX. 30 35 I V = 12V R = 30 mA GT D L - MIN. 1 1 V V = 12V R = 30 - MAX. 1.5 V GT D L 400V 450 600V 425 V = V gate open T = 100C D DRM J 800V 400 dv/dt 1000V MIN. 200 V/s 400V 350 V = V gate open T = 125C 600V 325 D DRM J 800V 300 V V = V R = 3.3 k T = 125C - MIN. 0.2 V GD D DRM L J I I = 400mA (initial) - MAX. 40 50 mA H T t (1) - MAX. 35 s q t I = 2 x I PW = 15s I = 40A - TYP. 2 s gt G GT T Note: xx = voltage, x = package (1) I =2A t =50s dv/dt=5V/s di/dt=-30A/s T p 2019 Littelfuse, Inc Specifications are subject to change without notice. Revised: BO.12/10/20