1N4933 - 1N4937 1.0A FAST RECOVERY RECTIFIER Features Diffused Junction Fast Switching for High Efficiency High Current Capability and Low Forward Voltage Drop Surge Overload Rating to 30A Peak Low Reverse Leakage Current Lead Free Finish, RoHS Compliant (Note 4) Mechanical Data DO-41 Plastic Case: DO-41 Dim Min Max Case Material: Molded Plastic. UL Flammability Classification Rating 94V-0 A 25.40 Moisture Sensitivity: Level 1 per J-STD-020D B 4.06 5.21 Terminals: Finish - Bright Tin. Plated Leads Solderable per MIL- C 0.71 0.864 STD-202, Method 208 D 2.00 2.72 Polarity: Cathode Band All Dimensions in mm Mounting Position: Any Ordering Information: See Page 2 Marking: Type Number 0.35 grams (approximate) Maximum Ratings and Electrical Characteristics T = 25C unless otherwise specified A Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Characteristic Symbol 1N4933 1N4934 1N4935 1N4936 1N4937 Unit V Peak Repetitive Reverse Voltage RRM Working Peak Reverse Voltage 50 100 200 400 600 V V RWM DC Blocking Voltage (Note 5) V R RMS Reverse Voltage V 35 70 140 280 420 V R(RMS) 1.0 A Average Rectified Output Current (Note 1) T = 75 C I A O Non-Repetitive Peak Forward Surge Current 8.3ms 30 A I FSM Single Half Sine-Wave Superimposed on Rated Load Forward Voltage Drop I = 1.0A V 1.2 V F FM Peak Reverse Current T = 25 C 5.0 A I A RM 100 at Rated DC Blocking Voltage (Note 5) T = 100 C A Reverse Recovery Time (Note 3) t 200 ns rr Typical Total Capacitance (Note 2) C 15 pF T Typical Thermal Resistance Junction to Ambient 100 C/W R JA Operating and Storage Temperature Range -65 to +150 T T C J, STG Notes: 1. Leads maintained at ambient temperature at a distance of 9.5mm from the case. 2. Measured at 1.0MHz and applied reverse voltage of 4.0V DC. 3. Measured with I = 0.5A, I = 1A, I = 0.25A. F R rr 4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes. 5. Short duration pulse test used to minimize self-heating effect. 1N4933-1N4937 DS26002 Rev. 7 - 2 1 of 2 Diodes Incorporated www.diodes.com 20 1.0 10 0.8 1.0 0.6 0.4 0.1 0.2 T = 25C j PC Board Mounted Pulse Width = 300s 9.5mm Lead Lengths 0.01 0 0.6 0.8 1.0 1.2 1.4 1.6 0 175 25 50 75 100 125 150 V , INSTANTANEOUS FORWARD VOLTAGE (V) F T , AMBIENT TEMPERATURE (C) A Fig. 2 Typical Forward Characteristics Fig. 1 Forward Current Derating Curve 30 100 Pulse Width 8.3ms Single Half Sine-Wave 20 10 10 0 1 110 100 110 100 V , DC REVERSE VOLTAGE (V) NUMBER OF CYCLES AT 60 Hz R Fig. 3 Max Non-Repetitive Peak Forward Surge Current Fig. 4 Typical Total Capacitance Ordering Information (Note 6) Device Packaging Shipping 1N4933-T DO-41 5K/Tape & Reel, 13-inch 1N4934-T DO-41 5K/Tape & Reel, 13-inch 1N4935-T DO-41 5K/Tape & Reel, 13-inch 1N4936-T DO-41 5K/Tape & Reel, 13-inch 1N4937-T DO-41 5K/Tape & Reel, 13-inch Notes: 6. For packaging details, visit our website at