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KBU8A - KBU8M
Discrete POWER & Signal Technologies
KBU8A - KBU8M
0.935(23.7) 0.895(22.7) 0.16(4.1) 0.14(3.6) 0.085(2.2) 0.280(7.1) 0.260(6.6)
Features * * *
High surge current capability. Reliable construction technique. Ideal for printed circuit board.
0.70(17.8) 0.66(16.8) 0.0760(19.3) MAX
0.065(1.7)
45 + +
0.455(11.3)
-
~
~+
0.405(10.3)
0.165(4.2) 0.150(3.8)
KBU
1.0(2.54) MIN
0.260(6.8) 0.180(4.5) 0.220(5.6)
8.0 Ampere Silicon Bridge Rectifiers
Absolute Maximum Ratings*
Symbol
IO if(surge) PD RJA RJL Tstg TJ Average Rectified Current @ TA = 50C Peak Forward Surge Current Total Device Dissipation Derate above 25C Thermal Resistance, Junction to Ambient,** per leg Thermal Resistance, Junction to Lead,** per leg Storage Temperature Range Operating Junction Temperature
TA = 25C unless otherwise noted
0.180(4.6)
0.052(1.3) 0.048(1.2)
Dimensions are in: inches (mm)
Parameter
Value
8.0 300 6.9 55 18 3.0 -55 to +150 -55 to +150
Units
A A W mW/C C/W C/W C C
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. **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
Parameter
8A Peak Repetitive Reverse Voltage Maximum RMS Bridge Input Voltage DC Reverse Voltage (Rated VR) Maximum Reverse Leakage, total bridge @ rated VR TA = 25C TA = 100C Maximum Forward Voltage Drop, per bridge @ 8.0 A 50 35 50
TA = 25C unless otherwise noted
Device
8B 100 70 100 8D 200 140 200 8G 400 280 400 10 500 1.0 8J 600 420 600 8K 800 560 800 8M 1000 700 1000
Units
V V V A A V
(c)1999 Fairchild Semiconductor Corporation
KBU8A-KBU8M, Rev. A
KBU8A - KBU8M
Silicon Bridge Rectifiers
(continued)
Typical Characteristics
Forward Current Derating Curve
8 FORWARD CURRENT (A) FORWARD CURRENT (A) 100
Forward Characteristics
6
10
4
2
SINGLE PHASE HALF WAVE 60HZ RESISTIVE OR INDUCTIVE LOAD .375" 9.0 mm LEAD LENGTHS
1
T J = 25 C A Pulse Width = 300S 2% Duty Cycle
0
0
50 100 AMBIENT TEMPERATURE ( C)
150
0.1 0.6
0.7
0.8 0.9 1 1.1 FORWARD VOLTAGE (V)
1.2
1.3
Non-Repetitive Surge Current
300 FORWARD SURGE CURRENT (A)
REVERSE CURRENT ( A) 100
Reverse Characteristics
T A= 100 C
250 200 150 100 50 0
10
1
T A= 25 C
0.1
1
2
5 10 20 50 NUMBER OF CYCLES AT 60Hz
100
0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
KBU8A-KBU8M, 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.
ACExTM CoolFETTM CROSSVOLTTM E2CMOSTM FACTTM FACT Quiet SeriesTM FAST(R) FASTrTM GTOTM HiSeCTM
DISCLAIMER
ISOPLANARTM MICROWIRETM POPTM PowerTrenchTM QSTM Quiet SeriesTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 TinyLogicTM
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 support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance 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.

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