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| 1N4937 Axial-Lead Fast-Recovery Rectifier FAST RECOVERY RECTIFIER 1.0 AMPERE 600 VOLTS Axial- lead, fast- recovery rectifiers are designed for special applications such as dc power supplies, inverters, converters, ultrasonic systems, choppers, low RF interference and free wheeling diodes. A complete line of fast recovery rectifiers having typical recovery time of 150 nanoseconds providing high efficiency at frequencies to 250 kHz. Mechanical Characteristics * Case: Epoxy, Molded * Weight: 0.4 gram (approximately) * Finish: All External Surfaces Corrosion Resistant and Terminal * Lead and Mounting Surface Temperature for Soldering Purposes: * * * * 220C Max. for 10 Seconds, 1/16 from case Shipped in plastic bags, 1000 per bag. Available Tape and Reeled, 5000 per reel, by adding a "RL" suffix to the part number Polarity: Cathode Indicated by Polarity Band Marking: 1N4937 Leads are Readily Solderable 1 1N4937 MAXIMUM RATINGS (Note 1) Rating *Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage *Non-Repetitive Peak Reverse Voltage RMS Reverse Voltage *Average Rectified Forward Current (Single phase, resistive load, TA = 75C) (Note 2) *Non-Repetitive Peak Surge Current (Surge applied at rated load conditions) Operating Junction Temperature Range Storage Temperature Range Symbol VRRM VRWM VR VRSM VR(RMS) IO IFSM TJ Tstg 1N4937 600 Unit Volts 650 420 1.0 30 - 65 to +150 - 65 to +150 Volts Amp Amps C THERMAL CHARACTERISTICS Characteristic Thermal Resistance, Junction to Ambient (Typical Printed Circuit Board Mounting) Symbol RJC Max 65 Unit C/W ELECTRICAL CHARACTERISTICS Characteristic Instantaneous Forward Voltage (IF = 3.14 Amp, TJ = 125C) Forward Voltage (IF = 1.0 Amp, TA = 25C) *Reverse Current (Rated dc Voltage) TA = 25C TA = 100C Symbol vF VF IR Min Typ 1.0 1.0 1.0 50 Max 1.2 1.1 5.0 100 Unit Volts Volts A *REVERSE RECOVERY CHARACTERISTICS Characteristic Reverse Recovery Time (IF = 1.0 Amp to VR = 30 Vdc) (IFM = 15 Amp, di/dt = 10 A/s) Reverse Recovery Current (IF = 1.0 Amp to VR = 30 Vdc) 1. Ratings at 25C ambient temperature unless otherwise specified. 2. Derate by 20% for capacitive loads. *Indicates JEDEC Registered Data for 1N4933 Series. Symbol trr IRM(REC) 150 175 1.0 200 300 2.0 Amp Min Typ Max Unit ns 2 1N4937 PACKAGE DIMENSIONS AXIAL LEAD B K F D NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. 59-04 OBSOLETE, NEW STANDARD 59-09. 4. 59-03 OBSOLETE, NEW STANDARD 59-10. 5. ALL RULES AND NOTES ASSOCIATED WITH JEDEC DO-41 OUTLINE SHALL APPLY 6. POLARITY DENOTED BY CATHODE BAND. 7. LEAD DIAMETER NOT CONTROLLED WITHIN F DIMENSION. DIM A B D F K INCHES MIN MAX 0.161 0.205 0.079 0.106 0.028 0.034 --- 0.050 1.000 --- MILLIMETERS MIN MAX 4.10 5.20 2.00 2.70 0.71 0.86 --- 1.27 25.40 --- A F K 3 |
Price & Availability of 1N4937
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