New Product
U(F,B)8BT thru U(F,B)8DT
Vishay General Semiconductor
Ultrafast Rectifier
TO-220AC
ITO-220AC
FEATURES
• Oxide planar chip junction
• Ultrafast recovery time
• Low switching losses, high efficiency
• High forward surge capability
2
1
U8xT
PIN 1
PIN 2
2
UF8xT
PIN 1
1
• Meets MSL level 1, per J-STD-020, LF maximum
peak of 245 °C (for TO-263AB package)
• Solder dip 260 °C, 40 s (for TO-220AC and
ITO-220AC package)
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
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.
MECHANICAL DATA
Case:
TO-220AC, ITO-220AC, TO-263AB
Epoxy meets UL 94V-0 flammability rating
Terminals:
Matte tin plated leads, solderable per
J-STD-002 and JESD22-B102
E3 suffix for consumer grade, meets JESD 201 class
1A whisker test
Polarity:
As marked
Mounting Torque:
10 in-lbs maximum
PRIMARY CHARACTERISTICS
I
F(AV)
V
RRM
I
FSM
t
rr
V
F
at I
F
= 8 A
T
J
max.
8.0 A
100 V to 200 V
100 A
20 ns
0.79 V
150 °C
MAXIMUM RATINGS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
Maximum repetitive peak reverse voltage
Maximum 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
Document Number: 89086
Revision: 13-May-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
New Product
U(F,B)8BT thru U(F,B)8DT
Vishay General Semiconductor
ELECTRICAL CHARACTERISTICS
(T
C
= 25 °C unless otherwise noted)
PARAMETER
TEST CONDITIONS
I
F
= 5 A
I
F
= 8 A
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
T
A
= 25 °C
V
F
T
A
= 150 °C
T
A
= 25 °C
T
A
= 100 °C
SYMBOL
TYP.
0.90
0.96
1.12
0.72
0.79
0.99
-
200
15
19
7.1
23
6.5
25
MAX.
-
1.02
-
V
-
0.86
-
10
500
20
-
-
-
-
-
µA
mA
ns
ns
nC
ns
nC
pF
UNIT
Instantaneous forward voltage
(1)
I
R
t
rr
t
rr
Q
rr
t
rr
Q
rr
C
J
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
θJC
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
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2
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: 89086
Revision: 13-May-08
New Product
U(F,B)8BT thru U(F,B)8DT
Vishay General Semiconductor
RATINGS AND CHARACTERISTICS CURVES
(T
A
= 25 °C unless otherwise noted)
12
10 000
Average Forward Rectified Current (A)
Instantaneous Reverse Current (µA)
Resistive or Inductive Load
10
T
A
= 150 °C
1000
T
A
= 125 °C
8
U8 & UB8
6
UF8
100
T
A
= 100 °C
10
T
A
= 25 °C
4
2
1
0
0
25
50
75
100
125
150
175
0.1
10
20
30
40
50
60
70
80
90
100
Ambient Temperature (°C)
Percent of Rated Peak Reverse
Voltage
(%)
Figure 1. Maximum Forward Current Derating Curve
Figure 4. Typical Reverse Leakage Charateristics
9
8
D = 0.8
D = 0.5
D = 0.3
D = 0.2
D = 0.1
T
D = 1.0
100
T
J
= 25 °C
f = 1.0 MHz
V
sig
= 50 mVp-p
7
6
5
4
3
2
1
0
0
1
2
3
Junction Capacitance (pF)
10
Average Power Loss (W)
10
D = t
p
/T
4
5
6
7
8
t
p
9
1
0.1
1
10
100
Average Forward Current (A)
Reverse
Voltage
(V)
Figure 2. Forward Power Loss Characteristics
Figure 5. Typical Junction Capacitance
10
Instantaneous Forward Current (A)
T
A
= 150 °C
1
T
A
= 125 °C
T
A
= 100 °C
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)
Figure 3. Typical Instantaneous Forward Charateristics
Document Number: 89086
Revision: 13-May-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
New Product
U(F,B)8BT thru U(F,B)8DT
Vishay General Semiconductor
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
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.
0.671 (17.04)
0.651 (16.54)
PIN
0.076 (1.93) REF.
0.076 (1.93) REF.
7° REF.
0.140 (3.56) DIA.
0.125 (3.17) DIA.
0.135 (3.43) DIA.
0.122 (3.08) DIA.
0.190 (4.83)
0.170 (4.32)
0.110 (2.79)
0.100 (2.54)
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)
0.670 (17.02)
0.591 (15.00)
0.15 (3.81) MIN.
0.08 (2.032) MIN.
0.105 (2.67)
0.095 (2.41)
0.33 (8.38) MIN.
0.190 (4.83)
0.160 (4.06)
0.055 (1.40)
0.045 (1.14)
Mounting Pad Layout
0.42 (10.66) MIN.
0.624 (15.85)
0.591 (15.00)
0.037 (0.940)
0.027 (0.686)
0.105 (2.67)
0.095 (2.41)
0 to 0.01 (0 to 0.254)
0.110 (2.79)
0.090 (2.29)
0.021 (0.53)
0.014 (0.36)
0.205 (5.20)
0.195 (4.95)
0.140 (3.56)
0.110 (2.79)
www.vishay.com
4
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: 89086
Revision: 13-May-08
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
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