KBU8A - KBU8M KBU8A - KBU8M Features • High surge current capability. • Reliable construction technique. • Ideal for printed circuit board. - ~~ + KBU Bridge Rectifiers Absolute Maximum Ratings* Symbol TA = 25°C unless otherwise noted Value Parameter 8A 8B 8D Units 8G 8J 8K 8M VRRM Maximum Repetitive Reverse Voltage 50 100 200 400 600 800 1000 V VRMS Maximum RMS Bridge Input Voltage 35 70 140 280 420 560 700 V VR DC Reverse Voltage 50 100 200 400 600 800 1000 V IF(AV) Average Rectified Forward Current, @ TA = 50°C 8.0 IFSM Non-repetitive Peak Forward Surge Current 300 A Tstg TJ Storage Temperature Range -55 to +150 °C Operating Junction Temperature -55 to +150 °C (Rated VR) A *These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. Thermal Characteristics Symbol Parameter Value Units PD Power Dissipation 6.9 W RθJA Thermal Resistance, Junction to Ambient,* per leg 18 °C/W RθJL Thermal Resistance, Junction to Lead,* per leg 3.0 °C/W *Device mounted on PCB with 0.375 " (9.5 mm) lead length and 0.5 x 0.5" (13 x 13 mm) copper pads. Electrical Characteristics Symbol TA = 25°C unless otherwise noted Parameter Device Units VF Forward Voltage, per bridge @ 8.0 A 1.0 V IR Reverse Current, total bridge @ rated VR TA = 25°C TA = 100°C 10 500 µA µA 2001 Fairchild Semiconductor Corporation KBU8A-KBU8M, Rev. C (continued) 100 8 Forward Current, IF [A] Average Rectified Forward Current, IF [A] Typical Characteristics 6 4 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD LENGTHS 2 50 100 TA J = 25º C µS Pulse Width = 300µ 2% Duty Cycle 150 Ambient Temperature [ºC] Figure 1. Forward Current Derating Curve 300 0.8 0.9 1 1.1 Forward Voltage, VF [V] 1.2 1.3 100 T A= 100º C 250 200 150 100 50 0 0.7 Figure 2. Forward Voltage Characteristics Reverse Current, IR [mA] Peak Forward Surge Current, IFSM [A] 1 0.1 0.6 0 0 10 10 1 T A= 25 º C 0.1 1 2 5 10 20 Number of Cycles at 60Hz 50 Figure 3. Non-Repetitive Surge Current 2001 Fairchild Semiconductor Corporation 100 0 20 40 60 80 100 120 140 Percent of Rated Peak Reverse Voltage [%] Figure 4. Reverse Current vs Reverse Voltage KBU8A-KBU8M, Rev. C KBU8A - KBU8M Bridge Rectifiers 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™ Bottomless™ CoolFET™ CROSSVOLT™ DenseTrench™ DOME™ EcoSPARK™ E2CMOSTM EnSignaTM FACT™ FACT Quiet Series™ FAST FASTr™ FRFET™ GlobalOptoisolator™ GTO™ HiSeC™ ISOPLANAR™ LittleFET™ MicroFET™ MicroPak™ MICROWIRE™ OPTOLOGIC™ OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerTrench QFET™ QS™ QT Optoelectronics™ Quiet Series™ SILENT SWITCHER SMART START™ STAR*POWER™ Stealth™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TinyLogic™ TruTranslation™ UHC™ UltraFET VCX™ STAR*POWER is used under license 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. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant into support device or system whose failure to perform can the body, or (b) support or sustain life, or (c) whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. 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. Rev. H4