SHINDENGEN General Purpose Rectifiers S1WB(A)20 SMT Bridges OUTLINE DIMENSIONS Case : 1W Case : 1W Unit : mm 200V 1A FEATURES ● Small SMT ● High IFSM ● Applicable to Automatic Insertion APPLICATION ● Switching power supply ● Home Appliances, Office Equipment ● Telecommunication, Factory Automation RATINGS ●Absolute Maximum Ratings (If not specified Tl=25℃) Item Symbol Conditions Storage Temperature Tstg Operating Junction Temperature Tj VRM Maximum Reverse Voltage Average Rectified Forward Current IO 50Hz sine wave, R-load, Ta=25℃ Peak Surge Forward Current IFSM 50Hz sine wave, Non-repetitive 1 cycle peak value, Tj=25℃ I2 t Current Squared Time 1ms≦t＜10ms Tj=25℃ ●Electrical Characteristics (If not specified Tl=25℃) Item Symbol Conditions Forward Voltage VF IF=0.5A, Pulse measurement, Rating of per diode VR=V RM, Pulse measurement, Rating of per diode Reverse Current IR Thermal Resistance θjl junction to lead θja junction to ambient Copyright & Copy;2000 Shindengen Electric Mfg.Co.Ltd Ratings -40∼150 150 200 1 30 4.5 Unit ℃ ℃ V A A A2 s Ratings Max.1.0 Max.10 Max.10 Max.65 Unit V μA ℃/W S1WB(A)x Forward Voltage Forward Current IF [A] 10 Tl=150°C [TYP] Tl=25°C [TYP] 1 Pulse measurement per diode 0.1 0.4 0.6 0.8 1 Forward Voltage VF [V] 1.2 1.4 S1WB(A)x Forward Power Dissipation Forward Power Dissipation PF [W] 3.5 3 2.5 2 1.5 1 0.5 0 0 0.2 0.4 0.6 0.8 1 1.2 Average Rectified Forward Current IO [A] Tj = 150°C Sine wave 1.4 S1WB(A)x Derating Curve Average Rectified Forward Current IO [A] 1.2 PCB SIN 1 Glass-epoxy substrate Soldering land 3mmφ 0.8 0.6 0.4 0.2 0 0 20 40 60 80 100 120 Ambient Temperature Ta [°C] Sine wave R-load Free in air 140 160 S1WB(A)x Peak Surge Forward Capability IFSM 50 10ms 10ms 1 cycle non-repetitive, sine wave, Tj=25°C before surge current is applied Peak Surge Forward Current IFSM [A] 40 30 20 10 0 1 2 5 10 20 Number of Cycles [cycles] 50 100