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KBU8A - KBU8M
KBU8A - KBU8M
Features * * *
High surge current capability. Reliable construction technique. Ideal for printed circuit board.
- ~~ +
KBU
Bridge Rectifiers
Absolute Maximum Ratings*
Symbol
VRRM VRMS VR IF(AV) IFSM Tstg TJ
TA = 25C unless otherwise noted
Parameter
8A Maximum Repetitive Reverse Voltage Maximum RMS Bridge Input Voltage DC Reverse Voltage (Rated VR) Average Rectified Forward Current, @ TA = 50C Non-repetitive Peak Forward Surge Current Storage Temperature Range Operating Junction Temperature 50 35 50 8B 100 70 100 8D 200 140 200
Value
8G 400 280 400 8.0 300 -55 to +150 -55 to +150 8J 600 420 600 8K 800 560 800 8M 1000 700 1000
Units
V V V A A C C
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Thermal Characteristics
Symbol
PD RJA RJL Power Dissipation Thermal Resistance, Junction to Ambient,* per leg Thermal Resistance, Junction to Lead,* per leg
Parameter
Value
6.9 18 3.0
Units
W C/W 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
VF IR
TA = 25C unless otherwise noted
Parameter
Forward Voltage, per bridge @ 8.0 A Reverse Current, total bridge @ rated VR TA = 25C TA = 100C
Device
1.0 10 500
Units
V A A
2001 Fairchild Semiconductor Corporation
KBU8A-KBU8M, Rev. C
KBU8A - KBU8M
Bridge Rectifiers
(continued)
Typical Characteristics
Average Rectified Forward Current, IF [A]
8
100
6
Forward Current, IF [A]
10
4
2
SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD LENGTHS
0 50 100 150
1
T J = 25 C A Pulse Width = 300S 2% Duty Cycle
0
0.1 0.6
0.7
Ambient Temperature [C]
0.8 0.9 1 1.1 Forward Voltage, VF [V]
1.2
1.3
Figure 1. Forward Current Derating Curve
Figure 2. Forward Voltage Characteristics
Peak Forward Surge Current, IFSM [A]
300 250 200 150 100 50 0
Reverse Current, IR [mA]
100
T A= 100 C
10
1
T A= 25 C
0.1
1
2
5 10 20 Number of Cycles at 60Hz
50
100
0
20 40 60 80 100 120 140 Percent of Rated Peak Reverse Voltage [%]
Figure 3. Non-Repetitive Surge Current
Figure 4. Reverse Current vs Reverse Voltage
2001 Fairchild Semiconductor Corporation
KBU8A-KBU8M, Rev. C
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.
ACExTM BottomlessTM CoolFETTM CROSSVOLTTM DenseTrenchTM DOMETM EcoSPARKTM E2CMOSTM EnSignaTM FACTTM FACT Quiet SeriesTM
DISCLAIMER
FAST (R) FASTrTM FRFETTM GlobalOptoisolatorTM GTOTM HiSeCTM ISOPLANARTM LittleFETTM MicroFETTM MicroPakTM MICROWIRETM
OPTOLOGICTM OPTOPLANARTM PACMANTM POPTM Power247TM PowerTrench (R) QFETTM QSTM QT OptoelectronicsTM Quiet SeriesTM SILENT SWITCHER (R)
SMART STARTTM STAR*POWERTM StealthTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 SyncFETTM TinyLogicTM TruTranslationTM UHCTM UltraFET (R)
VCXTM
STAR*POWER is used under license
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 Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. 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. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
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

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