MCC Features l Plastic Material Used Carriers Underwrites Laboratory Classification 94V-O l Low Cost Construction Utilizing Void-free Molded Plastic Technique l High Surge Capability l Diffused Junction RA251 THRU RA257 omponents 21201 Itasca Street Chatsworth !"# $ % !"# 25.0 Amp High Current Plastic Silicon Rectifier 50 to 1000 Volts Maximum Ratings o RA o l Operating & Storage Temperature: -50 C to +175 C l For Capacitive Load, Derate Current by 20% A RA251 RA252 RA253 RA254 RA255 Maximum Recurrent Peak Reverse Voltage 50V 100V 200V 400V 600V RA256 800V 560V 800V RA257 1000V 700V 1000V MCC Part Number Maximum RMS Voltage Maximum DC Blocking Voltage 35V 70V 140V 280V 420V 50V 100V 200V 400V 600V Electrical Characteristics @ 25oC Unless Otherwise Specified Average Forward Current Peak Forward Surge Current E C D B o IF(AV) 25.0A T C =150 C IFSM 400A 8.3ms half sine Maximum Instantaneous Forward Voltage VF 1.1V Maximum DC Reverse Current At Rated DC Blocking Voltage IR 5.0uA Typical Reverse Recovery Times trr 3.0us IF =0.5A, IR =1.0A, Irr=0.25A Typical Junction Capacitance Cj 300pF Measured at 1.0MHz, V R=4.0V IFM =25.0A o TA =25 C T C =25 o C DIMENSION DIM INCHES MM NOTE MIN MAX MIN MAX A .380 .410 9.70 10.40 B .165 .185 4.19 4.70 C .215 .225 5.50 5.70 D .235 .250 6.00 6.40 E ----5o ----5o NOM www.mccsemi.com MCC RA251 thru RA257 RATINGS AND CHARACTERISTIC CURVES FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE HALF SINE WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 40 30 20 10 0 125 135 145 155 165 FIG.2- MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 600 PEAK FORWARD SURGE CURRENT. (A) AVERAGE FORWARD CURRENT. (A) 50 Tj=25 0C Tj=150 0C 200 cycle 100 80 60 175 8.3ms Single Half Sine Wave JEDEC Method 400 300 1 10 o CASE TEMPERATURE. ( C) 100 NUMBER OF CYCLES AT 60Hz FIG.3- TYPICAL FORWARD CHARACTERISTICS FIG.4- TYPICAL REVERSE CHARACTERISTICS 1000 100 60 INSTANTANEOUS REVERSE CURRENT. ( A) 100 10 1.0 20 10 6 4 2 1 0.6 0.4 Tj=25 0C 0 Tj=25 C PULSE WIDTH-300 S 2% DUTY CYCLE 0.1 0.6 1.0 1.4 1.8 2.2 0.2 0.1 2.6 FORWARD VOLTAGE. (V) 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) FIG.5- TYPICAL JUNCTION CAPACITANCE 1000 JUNCTION CAPACITANCE.(pF) INSTANTANEOUS FORWARD CURRENT. (A) 40 500 Tj=25 0C 100 f=1.0MHz Vsig=50mVp-p 50 1 2 5 10 REVERSE VOLTAGE. (V) www.mccsemi.com 20 50 100