New Product
UH20FCT& UHB20FCT
Vishay General Semiconductor
Dual Common-Cathode Ultrafast Recovery Rectifier
FEATURES
• Oxide planar chip junction
TO-220AB
TO-263AB
K
• Ultrafast recovery times
• Soft recovery characteristics
• Low switching losses, high efficiency
2
• High forward surge capability
• Meets MSL level 1, per J-STD-020, LF maximum
peak of 245 °C (for TO-263AB package)
2
UH20FCT
PIN 1
PIN 3
PIN 2
CASE
3
UHB20FCT
PIN 1
PIN 2
1
1
K
HEATSINK
• Solder dip 260 °C, 40 s (for TO-220AB package)
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
TYPICAL APPLICATIONS
For use in high frequency power factor correctors,
switching mode power supplies, freewheeling diodes
and secondary dc-to-dc rectification application.
MECHANICAL DATA
Case:
TO-220AB and 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
T
J
max.
10 A x 2
300 V
180 A
25 ns
0.83 V
175 °C
MAXIMUM RATINGS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
Maximum repetitive peak reverse voltage
Maximum average forward rectified
current (see Fig.1)
Peak forward surge current 8.3 ms single half
sine-wave superimposed on rated load
Operating junction and storage temperature range
per device
per diode
per diode
SYMBOL
V
RRM
I
F(AV)
I
FSM
T
J
, T
STG
UH20FCT
300
20
10
180
- 55 to + 175
UHB20FCT
UNIT
V
A
A
°C
ELECTRICAL CHARACTERISTICS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
TEST CONDITIONS
I
F
= 5.0 A
I
F
= 5.0 A
I
F
= 10 A
I
F
= 10 A
T
J
= 25 °C
T
J
= 125 °C
T
J
= 25 °C
T
J
= 125 °C
SYMBOL
TYP.
0.96
0.77
V
F
1.0
0.83
MAX.
-
-
V
1.2
0.90
UNIT
Maximum instantaneous forward voltage
per diode
(1)
Document Number: 88964
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
UH20FCT& UHB20FCT
Vishay General Semiconductor
ELECTRICAL CHARACTERISTICS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
Maximum reverse current per diode
(2)
Maximum reverse recovery time
Maximum reverse recovery time per diode
Typical softness factor (tb/ta)
Typical reverse recovery current
Typical stored charge
Typical forward recovery time per diode
Notes:
(1) Pulse test: 300 µs pulse width, 1 % duty cycle
(2) Pulse test: Pulse width
≤
40 ms
TEST CONDITIONS
V
R
= 300 V
T
J
= 25 °C
T
J
= 125 °C
SYMBOL
I
R
t
rr
t
rr
S
I
RM
Q
rr
t
fr
TYP.
0.5
25
20
28
0.36
7.0
160
150
MAX.
5
150
25
35
-
-
-
-
UNIT
µA
ns
ns
-
A
nC
ns
I
F
= 0.5 A, I
R
= 1.0 A,
I
rr
= 0.25 A
I
F
= 1.0 A, dI/dt = 50 A/µs,
V
R
= 30 V, I
rr
= 0.1 I
RM
I
F
= 10 A, dI/dt = 200 A/µs,
V
R
= 200 V, T
J
= 125 °C
per diode
I
F
= 10 A, dI/dt = 80 A/µs,
V
FR
= 1.1 x V
F max.
THERMAL CHARACTERISTICS
(T
A
= 25 °C unless otherwise noted)
PARAMETER
Typical thermal resistance per diode
SYMBOL
R
θJC
UH20FCT
2.0
UHB20FCT
2.0
UNIT
°C/W
ORDERING INFORMATION
PACKAGE
TO-220AB
TO-263AB
TO-263AB
PREFERRED P/N
UH20FCT-E3/4W
UHB20FCT-E3/4W
UHB20FCT-E3/8W
UNIT WEIGHT (g)
1.88
1.38
1.38
PACKAGE CODE
4W
4W
8W
BASE QUANTITY
50/tube
50/tube
800/reel
DELIVERY MODE
Tube
Tube
Tape and reel
RATINGS AND CHARACTERISTICS CURVES
(T
A
= 25
°C
unless otherwise noted)
24
12
11
D = 0.5
D = 0.3
D = 0.2
D = 0.1
D = 1.0
D = 0.8
Average Forward Rectified Current (A)
Average Power Loss (W)
20
10
9
8
7
6
5
4
3
2
1
16
12
8
T
4
D = t
p
/T
0
2
4
6
8
t
p
10
12
0
0
25
50
75
100
125
150
175
0
Case Temperature (°C)
Average Forward Current (A)
Figure 1. Maximum Forward Current Derating Curve
Figure 2. Forward Power Loss Characteristics Per Diode
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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: 88964
Revision: 13-May-08
New Product
UH20FCT& UHB20FCT
Vishay General Semiconductor
200
1000
T
J
= T
J
Max.
10 ms Single Half Sine-Wave
Peak Forward Surge Current (A)
180
160
140
120
100
80
60
40
20
1
Instantaneous Reverse Current (µA)
100
T
J
= 175 °C
T
J
= 125 °C
10
1
0.1
T
J
= 25 °C
0.01
0.001
10
100
10
20
30
40
50
60
70
80
90
100
Number
of Cycles
Percent of Rated Peak Reverse
Voltage
(%)
Figure 3. Maximum Non-Repetitive Peak Forward Surge Current
Per Diode
Figure 5. Typical Reverse Leakage Characteristics Per Diode
100
1000
Instantaneous Forward Current (A)
T
J
= 125 °C
10
T
J
= 175 °C
T
J
= 25 °C
1
Junction Capacitance (pF)
T
J
= 25 °C
f = 1.0 MHz
V
sig
= 50 mVp-p
100
10
0.1
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
1
0.1
1
10
100
Instantaneous Forward
Voltage
(V)
Reverse
Voltage
(V)
Figure 4. Typical Instantaneous Forward Characteristics Per Diode
Figure 6. Typical Junction Capacitance Per Diode
Document Number: 88964
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
UH20FCT& UHB20FCT
Vishay General Semiconductor
PACKAGE OUTLINE DIMENSIONS
in inches (millimeters)
TO-220AB
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
0.154 (3.91)
0.148 (3.74)
0.113 (2.87)
0.103 (2.62)
0.145 (3.68)
0.135 (3.43)
0.635 (16.13)
0.625 (15.87)
3
0.603 (15.32)
0.573 (14.55)
0.350 (8.89)
0.330 (8.38)
1.148 (29.16)
1.118 (28.40)
0.110 (2.79)
0.100 (2.54)
0.560 (14.22)
0.530 (13.46)
0.035 (0.90)
0.028 (0.70)
0.205 (5.20)
0.195 (4.95)
0.022 (0.56)
0.014 (0.36)
0.185 (4.70)
0.175 (4.44)
0.055 (1.39)
0.045 (1.14)
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)
0.104 (2.65)
0.096 (2.45)
PIN
2
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)
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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: 88964
Revision: 13-May-08
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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