KBU4A thru KBU4M
Vishay General Semiconductor
Document Number: 88656
Revision: 15-Apr-08
For technical questions within your region, please contact one of the following:
PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com
www.vishay.com
1
Single-Phase Bridge Rectifier
FEATURES
• UL recognition file number E54214
• Ideal for printed circuit boards
• High surge current capability
• High case dielectric strength of 1500 VRMS
• Solder dip 260 °C, 40 s
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
TYPICAL APPLICATIONS
General purpose use in ac-to-dc bridge full wave
rectification for monitor, TV, printer, SMPS, adapter,
audio equipment, and home appliances applications.
MECHANICAL DATA
Case: KBU
Epoxy meets UL 94V-0 flammability rating
Terminals: Silver plated leads, solderable per
J-STD-002 and JESD22-B102
E4 suffix for consumer grade
Polarity: As marked on body
Mounting Torque: 10 cm-kg (8.8 inches-lbs) max.
Recommended Torque: 5.7 cm-kg (5 inches-lbs)
e4
PRIMARY CHARACTERISTICS
IF(AV) 4 A
VRRM 50 V to 1000 V
IFSM 200 A
IR5 µA
VF1.0 V
TJ max. 150 °C
Case Style KBU
~
~
~~
Notes:
(1) Units mounted on a 2.0 x 1.6 x 0.3" thick (5 x 4 x 0.8 cm.) aluminum plate
(2) 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
MAXIMUM RATINGS (TA = 25 °C unless otherwise noted)
PARAMETER SYMBOL KBU4A KBU4B KBU4D KBU4G KBU4J KBU4K KBU4M UNIT
Maximum repetitive 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
TC = 100 °C (1)
TA = 30 °C (2) IF(AV)
4.0
4.0 A
Peak forward surge current single sine-wave
superimposed on rated load IFSM 200 A
Operating junction and storage temperature range TJ, TSTG - 50 to + 150 °C
KBU4A thru KBU4M
Vishay General Semiconductor
www.vishay.com For technical questions within your region, please contact one of the following:
PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com
Document Number: 88656
Revision: 15-Apr-08
2
Notes:
(1) Units mounted on a 2.0 x 1.6 x 0.3" thick (5 x 4 x 0.8 cm.) aluminum plate
(2) 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
(3) Recommended mounting position is to bolt down on heatsink with silicone thermal compound for maximum heat transfer with #6 screw
RATINGS AND CHARACTERISTICS CURVES
(TA = 25 °C unless otherwise noted)
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER TEST CONDITIONS SYMBOL KBU4A KBU4B KBU4D KBU4G KBU4J KBU4K KBU4M UNIT
Maximum instantaneous
forward drop per diode 4.0 A VF 1.0 V
Maximum DC reverse
current at rated DC
blocking voltage per diode
TA = 25 °C
TA = 125 °C IR 5.0
1.0
µA
mA
THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER SYMBOL KBU4A KBU4B KBU4D KBU4G KBU4J KBU4K KBU4M UNIT
Typical thermal resistance RθJA
RθJL
19 (2)
4.0 (1) °C/W
ORDERING INFORMATION (Example)
PREFERRED P/N UNIT WEIGHT (g) PREFERRED PACKAGE CODE BASE QUANTITY DELIVERY MODE
KBU4J-E4/51 8.0 51 250 Anti-static PVC tray
Figure 1. Derating Curve Output Rectified Current
050 100 150
0
1
2
3
4
Heatsink Mounting,
TC, 2.0 x 1.6 x 3.0"
(5.0 x 4.0 x 0.8 cm)
Al. Plate
TA, P. C . B . M o unting
0.47" x 0.47" (12 x 12 mm)
Copper Pads
60 Hz
Resistive or
Inductive Load
Temperature (°C)
Average Forward Current (A)
Figure 2. Maximum Non-Repetitive Peak Forward Surge
Current Per Diode
110 100
25
50
75
100
125
150
175
200
T
J
= 150 °C
Single Sine-Wave
Number of Cycles at 60 Hz
Peak Forward Surge Current (A)
KBU4A thru KBU4M
Vishay General Semiconductor
Document Number: 88656
Revision: 15-Apr-08
For technical questions within your region, please contact one of the following:
PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com
www.vishay.com
3
PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
Figure 3. Typical Forward Characteristics Per Diode
Figure 4. Typical Reverse Leakage Characteristics Per Diode
0.6 0.7
100
10
1
0.1
0.80.9 1.0 1.1 1.2 1.3
T
J
= 25 °C
Pulse Width = 300 µs
1 % Duty Cycle
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
020 40 60 80100
0.01
0.1
1
10
50
T
J
= 100 °C
T
J
= 25 °C
Percent of Rated Peak Reverse Voltage (%)
Instantaneous Reverse Current (µA)
Figure 5. Typical Junction Capacitance Per Diode
0.1 110 100
0
25
50
75
100
150
Reverse Voltage (V)
Junction Capacitance (pF)
TJ = 25 °C
f = 1.0 MHz
Vsig = 50 mVp-p
0.160 (4.1)
0.065 (1.7)
0.185 (4.7)
0.895 (22.7)
0.935 (23.7)
0.140 (3.6) 0.165 (4.2)
0.085(2.2)
0.240 (6.09)
0.200 (5.08)
0.220 (5.6)
0.180 (4.6)
0.075 (1.9) R TYP. (2 Places)
45°
0.205 (5.2)
0.185 (4.7)
0.052 (1.3)
0.048(1.2)
0.280 (7.1)
0.260 (6.6)
DIA.
0.760
(19.3)
MAX.
0.700
(17.8)
0.660
(16.8)
1.0
(25.4)
MIN.
0.455 (11.3)
0.405 (10.3)
Case Style KBU
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
