U8xT, UF8xT, UB8xT
www.vishay.com
Vishay General Semiconductor
Ultrafast Rectifier
TO-220AC
ITO-220AC
FEATURES
• Power pack
• Oxide planar chip junction
• Ultrafast recovery time
• Low switching losses, high efficiency
• High forward surge capability
• Meets MSL level 1, per J-STD-020,
LF maximum peak of 245 °C (for TO-263AB package)
• Solder dip 275 °C max., 10 s per JESD 22-B106
(for TO-220AC and ITO-220AC package)
• AEC-Q101 qualified
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
2
1
U8xT
PIN 1
PIN 2
2
UF8xT
PIN 1
1
CASE
PIN 2
TO-263AB
K
2
1
UB8xT
PIN 1
PIN 2
K
HEATSINK
TYPICAL APPLICATIONS
For use in high frequency rectification and freewheeling
application in switching mode converters and inverters for
consumer computer, automotive and telecommunication
applications.
PRIMARY CHARACTERISTICS
I
F(AV)
V
RRM
I
FSM
t
rr
V
F
at I
F
= 8 A
T
J
max.
Package
Diode variations
8.0 A
100 V to 200 V
100 A
20 ns
0.79 V
150 °C
TO-220AC, ITO-220AC,
TO-263AB
Single die
MECHANICAL DATA
Case:
TO-220AC, ITO-220AC, TO-263AB
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
Polarity:
As marked
Mounting Torque:
10 in-lbs max.
per
MAXIMUM RATINGS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
Max. repetitive peak reverse voltage
Max. average forward rectified current (Fig. 1)
Peak forward surge current 8.3 ms single half sine-wave
superimposed on rated load
Isolation voltage (ITO-220AC only)
from terminals to heatsink t = 1 min
Operating junction and storage temperature range
SYMBOL
V
RRM
V
F(AV)
I
FSM
V
AC
T
J
, T
STG
U8BT
100
U8CT
150
8.0
100
1500
- 55 to + 150
U8DT
200
UNIT
V
V
A
V
°C
Revision: 20-Aug-13
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
TEST CONDITIONS
SYMBOL
TYP.
0.90
T
A
= 25 °C
V
F
T
A
= 150 °C
T
A
= 25 °C
T
A
= 100 °C
0.96
1.12
0.72
0.79
0.99
I
R
t
rr
t
rr
Q
rr
t
rr
Q
rr
C
J
-
200
15
19
7.1
23
6.5
25
MAX.
-
1.02
-
-
0.86
-
10
500
20
-
-
-
-
-
μA
ns
ns
nC
ns
nC
pF
V
UNIT
ELECTRICAL CHARACTERISTICS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
I
F
= 5 A
I
F
= 8 A
Instantaneous forward voltage
(1)
I
F
= 20 A
I
F
= 5 A
I
F
= 8 A
I
F
= 20 A
Reverse current
(2)
Reverse recovery time
Reverse recovery time
Storage charge
Reverse recovery time
Storage charge
Typical junction capacitance
Rated V
R
I
F
= 0.5 A, I
R
= 1.0 A, I
rr
= 0.25 A
I
F
= 1.0 A, dI/dt = 100 A/μs, V
R
= 30 V,
I
rr
= 0.1 I
RM
I
F
= 8 A, dI/dt = 50 A/μs, V
R
= 30 V,
I
rr
= 0.1 I
RM
4.0 V, 1 MHz
Notes
(1)
Pulse test: 300 μs pulse width, 1 % duty cycle
(2)
Pulse test: Pulse width
40
ms
THERMAL CHARACTERISTICS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
Typical thermal resistance from junction to case
SYMBOL
R
JC
U8xT
4.0
UF8xT
5.0
UB8xT
4.0
UNIT
°C/W
ORDERING INFORMATION
(Example)
PACKAGE
TO-220AC
ITO-220AC
TO-263AB
TO-263AB
PREFERRED P/N
U8DT-E3/4W
UF8DT-E3/4W
UB8DT-E3/4W
UB8DT-E3/8W
UNIT WEIGHT (g)
1.83
1.69
1.37
1.37
PACKAGE CODE
4W
4W
4W
8W
BASE QUANTITY
50/tube
50/tube
50/tube
800/reel
DELIVERY MODE
Tube
Tube
Tube
Tape and reel
RATINGS AND CHARACTERISTICS CURVES
(
T
A
= 25 °C unless otherwise noted)
12
9
Resistive or Inductive Load
10
8
D = 0.8
D = 0.5
D = 0.3
D = 0.2
D = 0.1
T
D = 1.0
Average Forward Rectified Current (A)
Average Power Loss (W)
7
6
5
4
3
2
1
8
U8 and UB8
6
UF8
4
2
D = t
p
/T
0
1
2
3
4
5
6
7
8
t
p
9
10
0
0
25
50
75
100
125
150
175
0
Ambient Temperature (°C)
Average Forward Current (A)
Fig. 1 - Max. Forward Current Derating Curve
Fig. 2 - Forward Power Loss Characteristics
Revision: 20-Aug-13
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
Fig. 4 - Typical Reverse Leakage Charateristics
10
Instantaneous Forward Current (A)
100
T
A
= 150 °C
1
T
A
= 125 °C
T
J
= 25 °C
f = 1.0 MHz
V
sig
= 50 mV
p-p
T
A
= 100 °C
Junction Capacitance (pF)
10
0.1
T
A
= 25 °C
0.01
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Instantaneous Forward Voltage (V)
1
0.1
1
10
100
Fig. 3 - Typical Instantaneous Forward Charateristics
Reverse Voltage (V)
Fig. 5 - Typical Junction Capacitance
10 000
Instantaneous Reverse Current (µA)
T
A
= 150 °C
1000
T
A
= 125 °C
100
T
A
= 100 °C
10
T
A
= 25 °C
1
0.1
10
20
30
40
50
60
70
80
90
100
Percent of Rated Peak Reverse Voltage (%)
Revision: 20-Aug-13
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
PACKAGE OUTLINE DIMENSIONS
in inches (millimeters)
TO-220AC
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
0.154 (3.91) DIA.
0.148 (3.74) DIA.
0.113 (2.87)
0.103 (2.62)
0.145 (3.68)
0.135 (3.43)
0.635 (16.13)
0.625 (15.87)
1
0.160 (4.06)
0.140 (3.56)
0.057 (1.45)
0.045 (1.14)
0.105 (2.67)
0.095 (2.41)
PIN 1
PIN 2
CASE
Vishay General Semiconductor
ITO-220AC
0.404 (10.26)
0.384 (9.75)
0.185 (4.70)
0.175 (4.44)
0.055 (1.39)
0.045 (1.14)
45° REF.
0.076 (1.93) REF.
0.076 (1.93) REF.
7° REF.
0.140 (3.56) DIA.
0.125 (3.17) DIA.
0.671 (17.04)
0.651 (16.54)
PIN
0.190 (4.83)
0.170 (4.32)
0.110 (2.79)
0.100 (2.54)
0.135 (3.43) DIA.
0.122 (3.08) DIA.
0.350 (8.89)
0.330 (8.38)
1.148 (29.16)
1.118 (28.40)
0.603 (15.32)
0.573 (14.55)
0.600 (15.24)
0.580 (14.73)
7° REF.
0.350 (8.89)
0.330 (8.38)
PIN
1
2
0.191 (4.85)
0.171 (4.35)
7° REF.
2
0.110 (2.79)
0.100 (2.54)
0.560 (14.22)
0.530 (13.46)
0.560 (14.22)
0.530 (13.46)
0.057 (1.45)
0.045 (1.14)
0.110 (2.79)
0.100 (2.54)
0.037 (0.94)
0.027 (0.68)
0.205 (5.20)
0.195 (4.95)
0.022 (0.56)
0.014 (0.36)
0.025 (0.64)
0.015 (0.38)
0.035 (0.89)
0.025 (0.64)
0.205 (5.21)
0.195 (4.95)
0.028 (0.71)
0.020 (0.51)
TO-263AB
0.411 (10.45)
0.380 (9.65)
0.245 (6.22)
MIN.
K
0.360 (9.14)
0.320 (8.13)
1
K
2
0.055 (1.40)
0.047 (1.19)
0.190 (4.83)
0.160 (4.06)
0.055 (1.40)
0.045 (1.14)
Mounting Pad Layout
0.42 (10.66) MIN.
0.33 (8.38) MIN.
0.624 (15.85)
0.591 (15.00)
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)
0.15 (3.81) MIN.
0.08 (2.032) MIN.
0.105 (2.67)
0.095 (2.41)
0.037 (0.940)
0.027 (0.686)
0.105 (2.67)
0.095 (2.41)
0.205 (5.20)
0.195 (4.95)
0.140 (3.56)
0.110 (2.79)
Revision: 20-Aug-13
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
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