DATA SHEET KBU4A~KBU4K SILICON SINGLE-PHASE BRIDGE RECTIFIER VOLTAGE 50 to 800 Volts CURRENT 4.0 Amperes Recongnized File # E111753 Unit: inch (mm) KBU .933(23.7) .894(22.7) • Ideal for printed circuit board • Reliable low cost construction ulilizing molded pastic technique. • High temperature soldering guaranteed: .240(6.7) .220(5.6) .759(19.3)MAX • Plastic material has Underwriters Laboratory Flammability Classification 94V-O .701(17.8) .661(16.8) FEATURES .220(5.6) .177(4.5) .1.0(25.4)MIN 260°C/10 seconds/.375"(9.5mm) lead length at 5 lbs. (2.3kg) tension • Both normal and Pb free product are available : Normal : 80~95% Sn, 5~20% Pb Pb free: 98.5% Sn above MECHANICALDATA .052(1.3) .047(1.2) molded plastic technique Terminals: Leads solderable per MIL-STD-202, Method 208 .220(5.6) .181(4.6) .090(2.3) .066(1.7) .280(7.1) .259(6.6) Case: Reliable low cost construction utilizing Mounting position: Any Mounting torque: 5 in. lb. Max. Weight: 0.3 ounce, 8.0 grams MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25°Cambient temperature unless otherwise specified. Resistive or inductive load, 60Hz. For Capacitive load derate current by 20%. PA RA M E TE R S YM B O L K B U4 A K B U4 B M a xi m um R e c ur r e nt P e a k R e ve r s e V o l t a g e V RRM 50 100 200 400 600 800 V M a x i m u m R M S B r i d g e In p u t V o l t a g e V RMS 35 70 140 280 420 560 V M a xi m um D C B l o c k i ng V o l t a g e V DC 50 100 200 400 600 800 V M a xi m um A ve r a g e F o r w a r d T C = 1 0 0 OC R e c t i f i e d O ut p ut C ur r e nt a t T A = 4 0 OC IAV 4 .0 A I2 t R a t i n g f o r f u s i n g ( t < 8 . 3 m s ) I2 t 93 A 2s e c IF S M 150 Apk M a xi m um F o r w a r d V o l t a g e D r o p p e r B r i d g e E l e m e nt a t 4 . 0 A VF 1 .0 Vpk M a xi m um R e ve r s e L e a k a g e C ur r e nt a t R a t e d @ T A = 2 5 OC D c B l o c k i ng V o l t a g e @ T A = 1 0 0 OC IR 5 1000 uA Rθ J A Rθ J C 8 .6 3 .1 T J ,T S TG -5 5 to + 1 5 0 P e a k F o r w a r d S ur g e C ur r e nt s i ng l e s i ne - w a ve s up e r i m p o s e d o n r a t e d l o a d ( J E D E C m e t ho d ) Ty p i c a l T h e r m a l R e s i s t a n c e p e r l e g ( N o t e 2 ) (No te 3 ) O p e r a t i n g J u n c t i o n a n d S t o r a g e Te m p e r a t u r e R a n g e K B U4 D K B U4 G K B U4 J K B U4 K U N IT S O C /W O C NOTES: 1. Recommended mounting position is to bolt down on heatsink with silicone thermal compound for maximum heat transfer with #6 screw. 2. Units Mounted in free air, no heatsink, P.C.B at 0.375"(9.5mm) lead length with 0.5 x 0.5"(12 x 12mm)copper pads. 3. Units Mounted on a 2.0 x 1.6" x 0.3" thick (5 x 4 x 0.8cm) AL plate. STAD-APR.09.2004 PAGE . 1 6.0 HEAT-SINK MOUNTING, TC (4 x 4 x 0.15)INCH COPPER PLATE 4.0 2.0 0.5"(12.7mm) LEAD LENGTH 60Hz RESISTIVE OR INDUCTIVE LOAD FORWRD SURGE CURRENT, AMPERES pk (HALF SINE-WAVE) AVERAGE FORWARD CURRENT AMPERES RATING AND CHARACTERISTIC CURVES 150 125 100 75 50 25 0 0 1 0 50 100 6 2 10 20 40 60 100 150 O TEMPERATURE, C NO. OF CYCLES AT 60Hz Fig.1 - DERATING CURVE FOR OUTPUT RECTIFIED CURRENT Fig.2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT INSTANTANEOUS FORWARD CURRENT, AMPERES 100 INSTANTANEOUS REVERSE CURRENT,uA 10 O T A =100 C 1.0 0.1 T A =25 O C 0.01 0 20 40 60 80 100 120 140 PERCENT OF PEAK REVERE VOLTAGE,% Fig.3 - TYPICAL REVERSE CHARACTERISTICS 40 20 10 4.0 2.0 TJ=25 OC Pulse Width = 300us 1% DULY Cycle 1.0 0.4 0.2 0.1 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 INSTANTANEOUS FORWARD VOLTAGE, VOLTS Fig.4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS PER ELEMENT CAPACITANCE, pF 400 100 T J =25 OC f = 1MHz Visg = 50m Vp-p 50 10 1 5 10 50 100 REVERSE VOLTAGE, VOLTS Fig.5 - TYPICAL JUNCTION CAPACITANCE STAD-APR.09.2004 PAGE . 2