SANKEN ELECTRIC CO., LTD. RU4B １ Scope The present specifications shall apply to Sanken silicon diode, RU4B. ２ Outline Type Silicon Diode Structure Resin Molded Applications Flammability:UL94-V0(Equivalent) Pulse rectification, etc. ３ Absolute maximum ratings No. Item Symbol Unit Rating 1 Transient Peak Reverse Voltage VRSM V 850 2 Peak Reverse Voltage VRM V 800 3 Average Forward Current IF(AV) A 1.5 Peak Surge Forward Current 5 6 No. (Ta=60℃) IFSM A 50 Junction Temperature Tj ℃ -4 0 ～ +1 5 0 Storage Temperature Tstg ℃ -4 0 ～ +1 5 0 ４ Electrical characteristics With out Fin Refer to 6 3.0 4 (Ta=60℃) Conditions With Fin 10msec. Half sinewave, one shot (Ta=25℃, unless otherwise specified) Item Symbol Unit Conditions Value 1 Forward Voltage Drop VF V 1.60 max. IF=3.0A 2 Reverse Leakage Current IR µA 10 max. VR=VRM 3 Reverse Leakage Current Under High Temperature H･IR µA 500 max. Trr-1 µs 0.4 max. Trr-2 µs 0.18 max. Rth(j-l) ℃/W 8.0 max. 4 5 040722 Reverse Recovery Time Thermal Resistance VR=VRM, Ta=100℃ IF=IRP=10mA, Ta=25℃ 90％ Recovery point IF=10mA, IRP=20mA, Ta=25℃ 75% Recovery point Between Junction and Lead 1／3 61426-01 SANKEN ELECTRIC CO., LTD. RU4B ５ VF test and test circuit ６ Derating Derating to the ambient temperature. Power loss generated by voltage is not taken into consideration. IF(AV) (A) Average Forward Current IF(AV) (A) 4.0 3.0 With heatsink 2.0 No heatsink 1.0 0 0 20 40 60 80 Ta (℃) Ambient temperature 040722 100 120 140 160 Ta (℃) 2／3 61426-01 SANKEN ELECTRIC CO., LTD. RU4B ７ Package information ７-１ Package type, physical dimensions and material 50.0±1.0 8.0±0.2 ※1 φ1.4±0.1 φ6.5±0.2 ※3 ※2 Dimensions in ㎜ ※1 Wire diameter of lead tips isφ1.55mm(max.) ※2The allowance position of body against the center of whole lead wire is 0.5mm (max.) ※3The centric allowance of lead wire against center of physical body is 0.3mm (max.) ※4The burr may exit up to 2mm from the body of lead ７-２ Appearance The body shall be clean and shall not bear any stain, rust or flaw. ７-３ Marking ① Type number RU4B Cathode Band ② Lot number 1 ① ② First digit : Last digit of year Second digit : Month From 1 to 9 for Jan. to Sep. O for Oct., N for Nov., and D for Dec. ① ③ ② ③ ③ The Type number and Lot number are to be marked in red. 040722 Lot number 2 (ten days) ･： Top of the month ･･： Middle of month ･･･：End of month 3／3 61426-01