U8xT, UF8xT, UB8xT
www.vishay.com
Vishay General Semiconductor
Ultrafast Rectifier
TO-220AC
FEATURES
ITO-220AC
• Power pack
• Oxide planar chip junction
• Ultrafast recovery time
• Low switching losses, high efficiency
• High forward surge capability
2
2
• Meets MSL level 1, per J-STD-020,
LF maximum peak of 245 °C (for TO-263AB package)
1
1
U8xT
UF8xT
PIN 1
• Solder dip 275 °C max., 10 s per JESD 22-B106
(for TO-220AC and ITO-220AC package)
PIN 1
CASE
PIN 2
PIN 2
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
TO-263AB
K
TYPICAL APPLICATIONS
For use in high frequency rectification and freewheeling
application in switching mode converters and inverters for
consumer computer, automotive and telecommunication
applications.
2
1
UB8xT
K
PIN 1
PIN 2
HEATSINK
MECHANICAL DATA
Case: TO-220AC, ITO-220AC, TO-263AB
PRIMARY CHARACTERISTICS
IF(AV)
8.0 A
VRRM
100 V to 200 V
IFSM
100 A
trr
20 ns
VF at IF = 8 A
0.79 V
TJ max.
150 °C
Package
TO-220AC, ITO-220AC,
TO-263AB
Diode variations
Single die
Molding compound meets UL 94V-0 flammability rating
Base P/N-E3 - RoHS-compliant, commercial grade
Terminals: Matte tin plated leads, solderable
J-STD-002 and JESD22-B102
E3 suffix meets JESD 201 class 1A whisker test
per
Polarity: As marked
Mounting Torque: 10 in-lbs max.
MAXIMUM RATINGS (TC = 25 °C unless otherwise noted)
PARAMETER
SYMBOL
U8BT
U8CT
U8DT
UNIT
Max. repetitive peak reverse voltage
VRRM
100
150
200
V
Max. average forward rectified current (Fig. 1)
VF(AV)
8.0
V
Peak forward surge current 8.3 ms single half sine-wave
superimposed on rated load
IFSM
100
A
Isolation voltage (ITO-220AC only)
from terminals to heatsink t = 1 min
VAC
1500
V
TJ, TSTG
-55 to +150
°C
Operating junction and storage temperature range
Revision: 03-Apr-14
Document Number: 89086
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
U8xT, UF8xT, UB8xT
www.vishay.com
Vishay General Semiconductor
ELECTRICAL CHARACTERISTICS (TC = 25 °C unless otherwise noted)
PARAMETER
TEST CONDITIONS
SYMBOL
IF = 5 A
IF = 8 A
Instantaneous forward voltage (1)
TA = 25 °C
IF = 20 A
VF
IF = 5 A
TA = 150 °C
IF = 8 A
IF = 20 A
TA = 25 °C
TYP.
MAX.
0.90
-
0.96
1.02
1.12
-
0.72
-
0.79
0.86
UNIT
V
0.99
-
-
10
200
500
Reverse current (2)
Rated VR
Reverse recovery time
IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A
trr
15
20
IF = 1.0 A, dI/dt = 100 A/μs, VR = 30 V,
Irr = 0.1 IRM
trr
19
-
ns
Qrr
7.1
-
nC
IF = 8 A, dI/dt = 50 A/μs, VR = 30 V,
Irr = 0.1 IRM
trr
23
-
ns
Storage charge
Qrr
6.5
-
nC
Typical junction capacitance
4.0 V, 1 MHz
CJ
25
-
pF
Reverse recovery time
Storage charge
Reverse recovery time
TA = 100 °C
IR
μA
ns
Notes
(1) Pulse test: 300 μs pulse width, 1 % duty cycle
(2) Pulse test: Pulse width 40 ms
THERMAL CHARACTERISTICS (TC = 25 °C unless otherwise noted)
PARAMETER
Typical thermal resistance from junction to case
SYMBOL
U8xT
UF8xT
UB8xT
UNIT
RJC
4.0
5.0
4.0
°C/W
ORDERING INFORMATION (Example)
PACKAGE
UNIT WEIGHT (g)
PACKAGE CODE
BASE QUANTITY
DELIVERY MODE
TO-220AC
U8DT-E3/4W
1.83
4W
50/tube
Tube
ITO-220AC
UF8DT-E3/4W
1.69
4W
50/tube
Tube
TO-263AB
UB8DT-E3/4W
1.37
4W
50/tube
Tube
TO-263AB
UB8DT-E3/8W
1.37
8W
800/reel
Tape and reel
Revision: 03-Apr-14
PREFERRED P/N
Document Number: 89086
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
U8xT, UF8xT, UB8xT
www.vishay.com
Vishay General Semiconductor
RATINGS AND CHARACTERISTICS CURVES (TA = 25 °C unless otherwise noted)
10
Resistive or Inductive Load
Instantaneous Forward Current (A)
Average Forward Rectified Current (A)
12
10
8
U8 and UB8
6
UF8
4
2
0
0
25
50
75
100
125
150
1
TA = 125 °C
TA = 100 °C
0.1
TA = 25 °C
0.01
0.1
175
0.3
0.2
0.4
0.5
0.6
0.7
0.9
0.8
Ambient Temperature (°C)
Instantaneous Forward Voltage (V)
Fig. 1 - Max. Forward Current Derating Curve
Fig. 3 - Typical Instantaneous Forward Charateristics
9
Instantaneous Reverse Current (µA)
10 000
8
Average Power Loss (W)
TA = 150 °C
D = 0.8
D = 0.5
7
D = 0.3
6
D = 1.0
D = 0.2
5
4
D = 0.1
T
3
2
1
D = tp/T
tp
TA = 150 °C
TA = 125 °C
1000
100
TA = 100 °C
10
TA = 25 °C
1
0.1
0
0
1
2
3
4
5
6
7
8
9
10
10
20
30
40
50
60
70
80
90
100
Percent of Rated Peak Reverse Voltage (%)
Average Forward Current (A)
Fig. 2 - Forward Power Loss Characteristics
Fig. 4 - Typical Reverse Leakage Charateristics
Junction Capacitance (pF)
100
TJ = 25 °C
f = 1.0 MHz
Vsig = 50 mVp-p
10
1
0.1
1
10
100
Reverse Voltage (V)
Fig. 5 - Typical Junction Capacitance
Revision: 03-Apr-14
Document Number: 89086
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
U8xT, UF8xT, UB8xT
www.vishay.com
Vishay General Semiconductor
PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
ITO-220AC
TO-220AC
0.404 (10.26)
0.384 (9.75)
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
0.154 (3.91) DIA.
0.148 (3.74) DIA.
0.185 (4.70)
0.175 (4.44)
0.055 (1.39)
0.045 (1.14)
0.113 (2.87)
0.103 (2.62)
0.145 (3.68)
0.135 (3.43)
1
PIN
0.603 (15.32)
0.573 (14.55)
0.350 (8.89)
0.330 (8.38)
PIN
0.205 (5.20)
0.195 (4.95)
TO-263AB
0.411 (10.45)
0.380 (9.65)
0.190 (4.83)
0.160 (4.06)
0.245 (6.22)
MIN.
0.035 (0.89)
0.025 (0.64)
Mounting Pad Layout
0.42 (10.66) MIN.
0.055 (1.40)
0.045 (1.14)
0.33 (8.38) MIN.
0.360 (9.14)
0.320 (8.13)
K
2
0.624 (15.85)
0.591 (15.00)
Revision: 03-Apr-14
0.055 (1.40)
0.047 (1.19)
0.670 (17.02)
0.591 (15.00)
0 to 0.01 (0 to 0.254)
0.110 (2.79)
0.090 (2.29)
0.021 (0.53)
0.014 (0.36)
0.037 (0.940)
0.027 (0.686)
0.105 (2.67)
0.095 (2.41)
0.028 (0.71)
0.020 (0.51)
0.205 (5.21)
0.195 (4.95)
K
1
0.110 (2.79)
0.100 (2.54)
0.057 (1.45)
0.045 (1.14)
0.025 (0.64)
0.015 (0.38)
0.022 (0.56)
0.014 (0.36)
7° REF.
0.191 (4.85)
0.171 (4.35)
CASE
0.037 (0.94)
0.027 (0.68)
7° REF.
2
0.560 (14.22)
0.530 (13.46)
0.560 (14.22)
0.530 (13.46)
PIN 1
0.135 (3.43) DIA.
0.122 (3.08) DIA.
0.350 (8.89)
0.330 (8.38)
0.110 (2.79)
0.100 (2.54)
PIN 2
0.105 (2.67)
0.095 (2.41)
0.671 (17.04)
0.651 (16.54)
0.600 (15.24)
0.580 (14.73)
1
0.160 (4.06)
0.140 (3.56)
0.057 (1.45)
0.045 (1.14)
0.140 (3.56) DIA.
0.125 (3.17) DIA.
1.148 (29.16)
1.118 (28.40)
2
7° REF.
0.076 (1.93) REF.
45° REF.
0.635 (16.13)
0.625 (15.87)
0.190 (4.83)
0.170 (4.32)
0.110 (2.79)
0.100 (2.54)
0.076 (1.93) REF.
0.205 (5.20)
0.195 (4.95)
0.140 (3.56)
0.110 (2.79)
0.15 (3.81) MIN.
0.08 (2.032) MIN.
0.105 (2.67)
0.095 (2.41)
Document Number: 89086
4
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
www.vishay.com
Vishay
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
1
Document Number: 91000
Mouser Electronics
Authorized Distributor
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