KBU8B-E4

## **KBU8A, KBU8B, KBU8D, KBU8G, KBU8J, KBU8K, KBU8M** 

## VISHAY, ~~—~~ 

www.vishay.com 

## Vishay General Semiconductor 

## **Single-Phase Bridge Rectifier** 

## **FEATURES** 

**==> picture [126 x 21] intentionally omitted <==**

**----- Start of picture text -----**<br>
~ ~<br>~ Case Style KBU<br>~<br>**----- End of picture text -----**<br>


e4 RoHS 

- UL recognition, file number E54214 

- Ideal for printed circuit boards 

- High surge current capability 

- High case dielectric strength of 1500 VRMS 

- Solder dip 275 °C max. 10 s, per JESD 22-B106 

- • Material categorization: for definitions of compliance COMPLIANT please see www.vishay.com/doc?99912 

## **TYPICAL APPLICATIONS** 

## **PRIMARY CHARACTERISTICS** 

|**PRIMARY CHARACTERISTICS**|**PRIMARY CHARACTERISTICS**|
|---|---|
|Package|KBU|
|IF(AV)|8 A|
|VRRM|50 V, 100 V, 200 V, 400 V, 600 V,<br>800 V, 1000 V|
|IFSM|300 A|
|IR|10 μA|
|VFat IF= 8 A|1.0 V|
|TJmax.|150 °C|
|Diode variations|In-Line|



General purpose use in AC/DC bridge full wave rectification for monitor, TV, printer, SMPS, adapter, audio equipment, and home appliances applications. 

## **MECHANICAL DATA** 

## **Case:** KBU 

Molding compound meets UL 94 V-0 flammability rating Base P/N-E4 - RoHS-compliant, commercial grade 

**Terminals:** Silver plated leads, solderable per J-STD-002 and JESD22-B102 

**Polarity:** As marked on body 

**Mounting Torque:** 10 cm-kg (8.8 inches-lbs) max. 

**Recommended Torque:** 5.7 cm-kg (5 inches-lbs) 

|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|**MAXIMUM RATINGS**(TA= 25 °C unless otherwise noted)<br>~~|~~<br>~~GGG~~<br>~~DD~~|
|---|---|---|---|---|---|---|---|---|---|
|**PARAMETER**<br>~~|~~<br>~~GGG~~|**SYMBOL KBU8A**<br>~~|~~<br>~~GGG~~<br>~~Ge~~|**SYMBOL KBU8A**<br>~~|~~<br>~~GGG~~<br>~~Gs~~|**KBU8B**<br>~~|~~<br>~~GGG~~<br>~~Gs~~|**KBU8D**<br>~~|~~<br>~~QO~~|**KBU8G**<br>~~|~~<br>~~DD~~<br>~~QO~~|**KBU8J**<br>~~|~~<br>~~DD~~<br>~~QO~~|**KBU8K**<br>~~|~~<br>~~DD~~|**KBU8M**<br>~~|~~<br>~~DD~~|**UNIT**<br>~~|~~<br>~~DD~~|
|Maximum repetitive peak reverse voltage<br>~~GGG~~<br>~~ee~~|VRRM<br>~~GGG~~<br>~~ee~~<br>~~Ge~~|50<br>~~GGG~~<br>~~ee~~<br>~~Gs~~|100<br>~~GGG~~<br>~~ee~~<br>~~Gs~~|200<br>~~ee~~<br>~~QO~~<br>~~QO~~|400<br>~~DD~~<br>~~ee~~<br>~~QO~~<br>~~QO~~|600<br>~~DD~~<br>~~ee~~<br>~~QO~~|800<br>~~DD~~<br>~~ee~~|1000<br>~~DD~~<br>~~ee~~|V<br>~~DD~~<br>~~ee~~|
|Maximum RMS voltage<br>~~GGG~~|VRMS<br>~~Ge~~<br>~~GGG~~|35<br>~~Gs~~<br>~~GGG~~|70<br>~~Gs ~~<br>~~GGG~~|140<br> ~~QO~~<br>~~GGG~~<br>~~QO~~<br>~~Ge~~|280<br>~~QO~~<br>~~GGG~~<br>~~QO~~<br>~~Ge~~|420<br>~~QO~~<br>~~GGG~~|560<br>~~GGG~~|700<br>~~GGG~~|V<br>~~GGG~~|
|Maximum DC blockingvoltage<br>~~GG~~|VDC<br>~~GG~~|50<br>~~GG~~|100<br>~~GG~~|200<br>~~QO~~<br>~~GG~~<br>~~Ge~~|400<br>~~QO~~<br>~~GG~~<br>~~Ge~~|600<br>~~GG~~|800<br>~~GG~~|1000<br>~~GG~~|V<br>~~GG~~|
|Maximum average forward<br>rectified output current at<br>TC= 100 °C(1)(3)<br>TA= 40 °C(2)<br>~~S|~~|IF(AV)<br>~~S|~~|8.0<br>~~Ge~~<br>~~S|~~|||||||A<br>~~S|~~|
|||6.0<br>~~S|~~||||||||
|Peakforward surge current single sine-wave<br>superimposed on rated load<br>~~ee~~|IFSM<br>~~ee~~|300<br>~~ee~~|||||||A<br>~~ee~~|
|Operatingjunction and storage temperature range<br>~~GG~~|TJ, TSTG<br>~~GG~~|- 50 to + 150<br>~~GG~~|||||||°C<br>~~GG~~|



> (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, PCB at 0.375" (9.5 mm) lead length with 0.5" x 0.5" (12 mm x 12 mm) copper pads 

> (3) Units mounted on a 3.0" x 3.0" x 0.11" thick (7.5 cm x 7.5 cm x 0.3 cm) aluminum plate heatsink 

|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TA= 25 °C unless otherwise noted)|
|---|---|---|---|---|---|---|---|---|---|---|
|**PARAMETER**|**TEST CONDITIONS**|**SYMBOL KBU8A**|**SYMBOL KBU8A**|**KBU8B**|**KBU8D**|**KBU8G**|**KBU8J**|**KBU8K**|**KBU8M**|**UNIT**|
|Maximum instantaneous<br>forward drop per diode|IF= 8.0 A|VF|1.0|||||||V|
|Maximum DC reverse<br>current at rated DC blocking<br>voltage per diode|TA= 25 °C|IR|10|||||||μA|
||TA= 125 °C||1.0|||||||mA|



Revision: 14-May-14 

Document Number: 88658 

**1** 

For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 

**KBU8A, KBU8B, KBU8D, KBU8G, KBU8J, KBU8K, KBU8M** 

**==> picture [59 x 48] intentionally omitted <==**

www.vishay.com 

Vishay General Semiconductor 

|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TA= 25 °C unless otherwise noted)|
|---|---|---|---|---|---|---|---|---|---|
|**PARAMETER**|**SYMBOL**|**KBU8A**|**KBU8B**|**KBU8D**|**KBU8G**|**KBU8J**|**KBU8K**|**KBU8M**|**UNIT**|
|Typical thermal resistance|RJA (1)|18|||||||°C/W|
||RJC(2)|3.0||||||||



## **Notes** 

> (1) Units mounted in free air, no heatsink, PCB at 0.375" (9.5 mm) lead length with 0.5" x 0.5" (12 mm x 12 mm) copper pads 

> (2) Units mounted on a 3.0" x 3.0" x 0.11" thick (7.5 cm x 7.5 cm x 0.3 cm) aluminum plate heatsink 

|**ORDERING INFORMATION**(Example)|**ORDERING INFORMATION**(Example)|**ORDERING INFORMATION**(Example)|**ORDERING INFORMATION**(Example)|**ORDERING INFORMATION**(Example)|
|---|---|---|---|---|
|**PREFERRED P/N**|**UNIT WEIGHT (g)**|**PREFERRED PACKAGE CODE**|**BASE QUANTITY**|**DELIVERY MODE**|
|KBU8J-E4/51|8.0|51|250|Anti-static PVC tray|



## **RATINGS AND CHARACTERISTICS CURVES** (TA = 25 °C unless otherwise noted) 

**==> picture [195 x 352] intentionally omitted <==**

**----- Start of picture text -----**<br>
Heatsink Mounting,<br>T C , 3.0 x 3.0 x 12" Thk.<br>Al. Plate (7.5 x 0.3 cm)<br>PCB Mounting, T A<br>0.375" (9.5 mm) Lead Length<br>0.5 x 0.5" (12 x 12 mm) Copper Pads<br>60 Hz Resistive or Inductive Load<br>Temperature (°C)<br> Fig. 1 - Derating Curve Output Rectified Current<br>TJ = 150 °C<br>Single Sine-Wave<br>1.0 Cycle<br>Number of Cycles at 60 Hz<br>8<br>6<br>4<br>2<br>0<br>0 50 100 150<br>300<br>250<br>200<br>150<br>100<br>50<br>0<br>1 10 100<br>Peak Forward Surge Current (A)<br>Average Forward Current (A)<br>**----- End of picture text -----**<br>


Fig. 1 - Derating Curve Output Rectified Current 

Fig. 2 - Maximum Non-Repetitive Peak Forward Surge Current 

**==> picture [194 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>10<br>T J  = 25 °C<br>Pulse Width = 300 µs<br>1 % Duty Cycle<br>1<br>0.1<br>0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3<br>Instantaneous Forward Voltage (V)<br>Instantaneous Forward Current (A)<br>**----- End of picture text -----**<br>


Fig. 3 - Typical Instantaneous Forward Characteristics Per Diode 

**==> picture [195 x 157] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>10<br>TJ = 100 °C<br>1<br>0.1 TJ = 25 °C<br>0.01<br>0 20 40 60 80 100<br>Percent of Rated Peak Reverse Voltage (%)<br>Instantaneous Reverse Current (µA)<br>**----- End of picture text -----**<br>


Fig. 4 - Typical Reverse Leakage Characteristics Per Diode 

Revision: 14-May-14 

Document Number: 88658 

**2** 

For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 

**KBU8A, KBU8B, KBU8D, KBU8G, KBU8J, KBU8K, KBU8M** 

**==> picture [59 x 48] intentionally omitted <==**

www.vishay.com 

Vishay General Semiconductor 

**==> picture [194 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
TJ = 25  ° C<br>f = 1.0 MHz<br>V sig  = 50 mV p-p<br>Reverse Voltage (V)<br>1000<br>100<br>10<br>1 10 100<br>Junction Capacitance (pF)<br>**----- End of picture text -----**<br>


Fig. 5 - Typical Junction Capacitance Per Diode 

## **PACKAGE OUTLINE DIMENSIONS** in inches (millimeters) 

## **Case Style KBU** 

**==> picture [240 x 254] intentionally omitted <==**

**----- Start of picture text -----**<br>
0.935 (23.7)<br>0.160 (4.1) 0.895 (22.7) 0.185 (4.7)<br>0.140 (3.6)<br>0.165 (4.2)<br>45°<br>0.700 0.085 (2.2)<br>0.760 (17.8) 0.065 (1.7)<br>(19.3) 0.660<br>MAX. (16.8)<br>0.075 (1.9) R TYP. (2 Places) 0.455 (11.3)<br>0.405 (10.3)<br>1.0<br>(25.4)<br>MIN.<br>0.052 (1.3)<br>0.048 (1.2)<br>DIA.<br>0.220 (5.6)<br>0.180 (4.6)<br>0.240 (6.09)<br>0.200 (5.08)<br>0.205 (5.2) 0.280 (7.1)<br>0.260 (6.6)<br>0.185 (4.7)<br>**----- End of picture text -----**<br>


Revision: 14-May-14 

Document Number: 88658 

**3** 

For technical questions within your region: DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 

**Legal Disclaimer Notice** Vishay 

www.vishay.com 

**==> picture [59 x 48] intentionally omitted <==**

## **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.  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.** 

**Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free requirements as per JEDEC JS709A standards.  Please note that some Vishay documentation may still make reference to the IEC 61249-2-21 definition.  We confirm that all the products identified as being compliant to IEC 61249-2-21 conform to JEDEC JS709A standards.** 

Revision: 02-Oct-12 

Document Number: 91000 

**1**