DIODE MODULE DWF(R)70A30/40 DWF R 70A is a non-isolated diode module designed for 3 phase rectification. IF AV 70A, VRRM400V Construction with Joint-CathodeF Type and Joint-Anode R type. Non-isolated.Mounting Base as terminals. High Surge Capability Easy 20 92 20 20 25 12.5 12 2- 6 Applications Welding Power Supply 3 Phase Rectifier DWF 6.5 31max 19.5 4.0 M5X10 800.2 DWR Unita Maximum Ratings Symbol Tj25 unless otherwise specified Ratings Item DWF(R)70A30 DWF(R)70A40 Unit VRRM Repetitive Peak Reverse Voltage 300 400 V VRSM Non-Repetitive Peak Reverse Voltage 360 480 V D.C. Reverse Voltage 240 320 V VRDC Symbol Item Conditions Average Forward Current Single phase, half wave, 180conduction, Tc119 IFRMS R.M.S. Forward Current Single phase, half wave, 180conduction, Tc119 IFSM Surge Forward Current 1 2cycle, It It Value for one cycle of surge current Tj IFAV 2 Tstg Ratings Unit 70 A 110 A 1400 A 8100 A2S Operating Junction Temperature -30 to 150 Storage Temperature -30 to 125 2 Mounting Torque 60Hz, peak value, non-repetitive MountingM5 Recommended Value 1.5-2.515-25 2.748 TerminalM5 Recommended Value 1.5-2.515-25 2.748 Nm fB 170 g Ratings Unit Mass Electrical Characteristics Symbol Item IRRM Repetitive Peak Reverse Current, max. at VDRM, single phase, half wave, Tj150 12 mA VFM Forward Voltage Drop, max. Forward current 220A, Tj25, Inst. measurement 1.15 V Junction to case 0.40 /W Rthj-c Thermal Impedance, max. Conditions http://store.iiic.cc/ DWF(R)70A30/40 8 Power Dissipation PavW Maximum Forward Characteristics Forward Current IA F Average Forward Current vs. Power Dissipation Single Phase Three Phase 7 Six Phase Per one element 7 8 Forward Voltage Drop VV F Average Forward CurrentA Average Forward Current vs. Allowable Case Temperature Cycle Surge Forward Current Rating Non-Repetitive Per one element 5 Surge Forward Current IA F Allowable Case Temperature Tc Per one element Tj25 start Six Phase Three Phase Single Phase 60Hz Transient Thermal Impedance j-c/W Transient Thermal Impedancemax Junction to Case Per one element 50ms20sec 0.5ms200ms -1 - - TimeCycles Average Forward CurrentA - Time tsec http://store.iiic.cc/