HER308

Features H igh efficiency, Low VF H igh current capability H igh reliability H igh surge current capability F or use in low voltage, high frequency inventor, free wheeling, and polarity protection application . M echanical Data C ases: Molded plastic E poxy: UL 94V0 rate flame retardant L ead: Pure tin plated, lead free, solderable per MIL-STD-202, Method 208 guaranteed P olarity: Color band denotes cathode H igh temperature soldering guaranteed: o 260 C/10 seconds/.375”,(9.5mm) lead lengths at 5 lbs., (2.3kg) tension W eight: 1.2grams - - TDD- D A Y A HER301 -HER308 3.0 AMPS. High Efficient Rectifiers DO-201AD - Dimensions in inches and (millimeters) R ating at 25 oC ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% M aximum Ratings and Electrical Characteristics T ype Number M aximum Recurrent Peak Reverse Voltage M aximum RMS Voltage M aximum DC Blocking Voltage M aximum Average Forward Rectified Current .375 (9.5mm) Lead Length @T A = 5 5 oC P eak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method ) M aximum Instantaneous Forward Voltage @ 3.0A M aximum DC Reverse Current @T A =25 oC at Rated DC Blocking Voltage @ T A =125 oC M aximum Reverse Recovery Time (Note 1) T ypical Junction capacitance (Note 2) T ypical Thermal Resistance O perating Temperature Range S ymbol HER 301 V RRM 50 V RMS 35 V DC 50 I(AV) IFSM VF IR T rr Cj R θJA TJ HER 302 100 70 100 HER 303 200 140 200 HER 304 300 210 300 HER 305 400 280 400 HER 306 600 420 600 HER 307 800 560 800 HER Units 308 1000 V 700 V 1000 V A 3 .0 1 50 1 .0 1.3 10 250 50 70 40 -65 to +150 -65 to +150 75 50 1.7 A V uA uA nS pF o C/W o C o C S torage Temperature Range T STG 1. Reverse Recovery Test Conditions: IF =0.5A, IR =1.0A, IRR =0.25A N otes: 2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C. 3. Mount on Cu-Pad Size 16mm x 16mm on PCB. Factory Address: Taiguan Industrial zone, Yanjinyu Dongjin Rode No.1, XinXiang, HeNan, China RATINGS AND CHARACTERISTIC CURVES (HER301 THRU HER308) FIG.1- MAXIMUM FORWARD CURRENT DERATING CURVE 6.0 1000 FIG.2- TYPICAL REVERSE CHARACTERISTICS AVERAGE FORWARD CURRENT. (A) 5.0 INSTANTANEOUS REVERSE CURRENT. ( A) 4.0 100 Tj=100 0C 3.0 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375" (9.5mm) Lead Length 2.0 20 - TDD- D A Y A - 10 Tj=75 0C 1.0 0 0 25 50 75 100 125 O 150 175 AMBIENT TEMPERATURE. ( C) 1 Tj=25 0C 300 FIG.3- MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PEAK FORWARD SURGE CURRENT. (A) 0.1 0 200 8.3ms Single Half Sine Wave JEDEC Method 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE. (%) 100 FIG.5- TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 100 Tj=25 0C 0 1 10 100 1000 NUMBER OF CYCLES AT 60Hz FIG.4- TYPICAL JUNCTION CAPACITANCE 175 150 125 100 75 50 HE INSTANTANEOUS FORWARD CURRENT. (A) 10 R3 05 HE JUNCTION CAPACITANCE.(pF) 1 HER301-HER304 R3 01 ~H ER HE 30 R3 5 06~ 0.1 HE R3 08 25 0 0.1 0.5 1 2 5 10 20 50 100 200 500 REVERSE VOLTAGE. (V) 0.01 0 0.2 HER306-HER308 0.4 0.6 0.8 1.0 1.2 1.4 FORWARD VOLTAGE. (V) FIG.6- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 NONINDUCTIVE 10 NONINDUCTIVE +0.5A DUT (-) PULSE GENERATOR (NOTE 2) OSCILLOSCOPE (NOTE 1) (+) 0 -0.25A trr (+) 50Vdc (approx) (-) NON INDUCTIVE NOTES: 1. Rise Time=7ns max. Input Impedance= 1 megohm 22pf 2. Rise Time=10ns max. Sourse Impedance= 50 ohms -1.0A 1cm SET TIME BASE FOR 5/ 10ns/ cm Factory Address: Taiguan Industrial zone, Yanjinyu Dongjin Rode No.1, XinXiang, HeNan, China