1N4933 - 1N4937 Features • Low forward voltage drop. 1.0 min (25.4) • High surge current capability. Dimensions in inches (mm) • High reliability. 0.205 (5.21) 0.160 (4.06) • High current capability. DO-41 COLOR BAND DENOTES CATHODE 0.107 (2.72) 0.080 (2.03) 0.034 (0.86) 0.028 (0.71) 1.0 Ampere Fast Recovery Rectifiers Absolute Maximum Ratings* Symbol IO TA = 25°C unless otherwise noted Parameter Value Units 1.0 A 30 A 2.5 20 50 W mW /°C °C/W RθJA Average Rectified Current .375 " lead length @ T A = 50°C Peak Forward Surge Current 8.3 ms single half-sine-wave Superimposed on rated load (JEDEC method) Total Device Dissipation Derate above 25°C Thermal Resistance, Junction to Ambient T stg Storage Temperature Range -50 to +150 °C TJ Operating Junction Temperature -50 to +150 °C if(surge) PD *These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. Electrical Characteristics TA = 25°C unless otherwise noted Parameter Device Units 4933 4934 4935 4936 4937 Peak Repetitive Reverse Voltage 50 100 200 400 600 Maximum RMS Voltage 35 70 140 280 420 V 50 100 200 400 600 V DC Reverse Voltage (Rated VR) Maximum Reverse Current @ rated VR TA = 25°C TA = 100°C Maximum Reverse Recovery Time IF = 0.5 A, IR = 1.0 A, IRR = 0.25 A Maximum Forward Voltage @ 1.0 A Typical Junction Capacitance VR = 4.0 V, f = 1.0 MHz 1999 Fairchild Semiconductor Corporation 5.0 100 150 V µA µA nS 1.2 V 12 pF 1N4933-1N4937, Rev. A 1N4933-1N4937 Discrete POWER & Signal Technologies 1N4933-1N4937 Typical Characteristics Forward Current Derating Curve Forward Characteristics 1 20 FORWARD CURRENT (A) FORWARD CURRENT (A) 10 0.8 0.6 SINGLE PHASE HALF WAVE 60HZ RESISTIVE OR INDUCTIVE LOAD .375" 9.0 mm LEAD LENGTHS 0.4 0.2 0 0 25 50 75 100 125 150 AMBIENT TEMPERATURE ( º C) 3 1 0.3 0.1 TA J = 25º C Pulse Width = 300µS 200µS 2% Duty Cycle 0.03 0.01 0.6 175 1.8 2 100 30 20 10 0 1 1.2 1.4 1.6 FORWARD VOLTAGE (V) Reverse Characteristics 40 REVERSE CURRENT ( µ A) PEAK FORWARD SURGE CURRENT (A) Non-Repetitive Surge Current 0.8 1 2 5 10 20 50 NUMBER OF CYCLES AT 60Hz 100 TA = 100º C 10 1 TA J = 25º C 0.1 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE (%) Typical Junction Capacitance JUNCTION CAPACITANCE (pF) 20 10 5 2 1 50Ω NONINDUCTIVE 1 2 5 10 20 REVERSE VOLTAGE (V) 50Ω NONINDUCTIVE 50 +0.5A 100 trr (-) DUT 50V (approx) 50Ω NONINDUCTIVE Pulse Generator (Note 2) 0 -0.25A (+) OSCILLOSCOPE (Note 1) NOTES: 1. Rise time = 7.0 ns max; Input impedance = 1.0 megaohm 22 pf. 2. Rise time = 10 ns max; Source impedance = 50 ohms. -1.0A 1.0cm SET TIME BASE FOR 5/ 10 ns/ cm Reverse Recovery Time Characterstic and Test Circuit Diagram 1N4933-1N4937, Rev. A TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ CoolFET™ CROSSVOLT™ E2CMOSTM FACT™ FACT Quiet Series™ FAST® FASTr™ GTO™ HiSeC™ ISOPLANAR™ MICROWIRE™ POP™ PowerTrench™ QS™ Quiet Series™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 TinyLogic™ DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. 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PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.