KBU4A ~ KBU4M Silicon Bridge Rectifiers KBU PRV : 50 - 1000 Volts Io : 4.0 Amperes 0.935 (23.7) 0.895 (22.7) * * * * Ideal for printed circuit boards High surge current capability High case dielectric strength of 1500 VRMS Pb / RoHS Free 0.085 (2.2) 0.065 (1.7) + + 0.760 (19.3) MAX. FEATURES : + AC AC 0.16 (4.1) 0.14 (3.6) 1.0 (25.4) MIN. 1.80 (29.9) MIN. 0.052 (1.30) 0.048 (1.20) MECHANICAL DATA : * * * * Case : Molded plastic Polarity : Polarity symbols marked on case Mounting position : Any Weight : 8.0 grams 0.085 (2.16) 0.065 (1.65) 0.280 (7.1 ) 0.260 (6.6) 0.220 (5.60) 0.180 (4.60) Dimensions in inches and ( millimeter ) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified. RATING SYMBOL KBU KBU KBU KBU KBU KBU KBU 4A 4B 4D 4G 4J 4K 4M UNIT Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 400 600 800 1000 V Maximum RMS Voltage VRMS 35 70 140 280 420 560 700 V Maximum DC Blocking Voltage VDC 50 100 200 400 600 800 1000 V Maximum Average Forward Rectified Output Current at Ta = 30 °C (Note 1) Peak Forward Surge Current, Single sine-wave Superimposed on rated load Maximum Instantaneous Forward Voltage per leg at I F = 4 A IF(AV) 4.0 A IFSM 200 A VF 1.0 V IR 5.0 (Ta = 25°C) μA at Rated DC Blocking Voltage per leg IR(H) 1.0 (Ta = 125°C) mA Thermal Resistance, Junction to Ambient, per leg (Note1) RθJA 19 °C/W Thermal Resistance, Junction to Lead, per leg (Note2) RθJL 4.0 °C/W TJ, TSTG - 50 to + 150 °C Maximum DC Reverse Current Operating Junction and Storage Temperature Range Notes : (1) Units mounted on P.C.B. with 0.5 x 0.5" (12 x 12 mm) copper pads and 0.375" (9.5 mm) lead length. (2) Units mounted on a 2.0 x 1.6 x 0.3" thick (5 x 4 x 0.8 cm) Al.Plate Page 1 of 2 Rev. 01 : February 15, 2006 RATING AND CHARACTERISTIC CURVES ( KBU4A - KBU4M ) FIG.1 - DERATING CURVE FOR OUTPUT RECTIFIED CURRENT FIG.2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 200 3.0 2.0 1.0 175 PEAK FORWARD SURGE CURRENT, (A) AVERAGE FORWARD CURRENT, (A) 4.0 60Hz Resistive or Inductive Load 150 125 100 75 TJ = 150 °C Single Sine-Wave 50 25 0 0 0 25 50 75 100 125 150 175 1 AMBIENT TEMPERATURE, ( °C) 2 4 6 10 20 40 60 100 NUMBER OF CYCLES AT 60Hz FIG.3 - TYPICAL FORWARD CHARACTERISTICS FIG.4 - TYPICAL REVERSE LEAKAGE PER LEG CHARACTERISTICS PER LEG 50 INSTANTANEOUS REVERSE CURRENT, (µA) INSTANTANEOUS FORWARD CURRENT, (A) 100 10 1.0 TJ = 25 °C Pulse width = 300 µs 1% Duty Cycle 0.1 0.6 0.7 0.8 0.9 1.0 1.1 1.2 FORWARD VOLTAGE, (V) Page 2 of 2 1.3 TJ = 100 °C 10 1.0 TJ = 25 °C 0.1 0.01 0 20 40 60 80 100 PERCENT OF RATED REVERSE VOLTAGE, (%) Rev. 01 : February 15, 2006