CURRENT 5.0 Amperes VOLTAGE 50 to 1000 Volts BY550-50 THRU BY550-1000 Features * Low cost * Diffused junction * High current capability * The plastic material carries U/L recognition 94V-0 DO-201AD 0.210(5.3) 0.188(4.8) DIA. 1.0(25.4) MIN. 0.375(9.5) 0.285(7.2) Mechanical Data * Case : JEDEC DO-201AD molded plastic body * Terminals : Plated axial lead solderable per MIL-STD-750, method 2026 * Polarity : Color band denotes cathode end * Mounting Position : Any * Weight : 0.042 ounce, 1.1 grams 1.0(25.4) MIN. 0.042(1.1) 0.037(0.9) DIA. Dimensions in inches and (millimeters) Maximum Ratings And Electrical Characteristics (Ratings at 25 ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive load. For capacitive load, derate by 20%) Symbols BY550 BY550 BY550 BY550 BY550 BY550 BY550 -50 -100 -200 -400 -600 -800 -1000 Maximum average forward rectified current at TA=60 I(AV) 5.0 Amps Recurrent peak Forward Current IFRM 60.0 Amps Peak forward surge current 8.3ms half sine wave superimposed on rated load IFSM 300.0 Amps Maximum instantaneous forward voltage at 5.0A VF 1.1 Volts Maximum reverse current at rated DC blocking voltage IR 20.0 A RJA 30.0 /W TJ TSTG Notes: (1) Measured at 1MHz and applied reverse voltage of 4.0V DC. 200 400 -65 to +150 600 1000 VRRM Operating and storage temperature range 100 800 Maximum recurrent peak reverse voltage Typical thermal resistance 50 Units Volts RATINGS AND CHARACTERISTIC CURVES BY550-50 THRU BY550-1000 FIG.1-FORWARD CURRENT DERATING CURVE FIG.2-TYPICAL FORWARD CHARACTERISTICS 100000 8 10mm 10mm 10000 6 INSTANTANEOUS FORWARD CURRENT(AMPERES) AVERAGE FORWARD CURRENT AMPERES 7 5 4 R-Load 3 C-Load 2 1 1000 TJ=25 100 Typ.values 10 0 0 25 50 75 100 125 150 175 1 LEAD TEMPERATURE ( ) 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 INSTANTANEOUS FORWARD VOLTAGE (VOLTS) FIG.3-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT FIG.4-TYPICAL THERMAL RESISTANCE 1000 50 R0JA THERMAL RESISTANCE JUNCTION AMBIENT(/W) IFM PERMISSIBLE SURGE CURRENT(A) 400 1 Cycle 200 TJ=25 100 40 40 Max 30 20 Typ 10 20 1 2 4 10 20 NUMBER OF CYCLES AT 50Hz L L 20 25 100 0 0 5 10 15 L, LEAD LENGTH (mm) 30