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®
WON-TOP ELECTRONICS
U20D05C – U20D60C
20A GLASS PASSIVATED DUAL SUPERFAST RECTIFIER
Pb
Features
Glass Passivated Die Construction
H
Superfast 35nS and 50nS Recovery Time
Low Forward Voltage Drop
Low Reverse Leakage Current
High Surge Current Capability
Epoxy Meets UL 94V-0 Classification
Ideally Suited for Use in High Frequency
SJ
RK
PIN1 2 3
SMPS, Inverters and As Free Wheeling Diodes L
P
Mechanical Data
Case: TO-3P, Molded Plastic
Terminals: Plated Leads Solderable per
MIL-STD-750, Method 2026
Polarity: See Diagram
Weight: 5.6 grams (approx.)
Mounting Position: Any
Mounting Torque: 1.2 N.m Max.
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 4
N
M
A
B
C
GD
TO-3P
Dim Min Max
A
1.85
2.15
B
4.70
5.30
C — 23.00
D 19.00 —
E
2.80
3.20
G
0.45
0.85
H — 16.20
J
1.70
2.70
K
3.15 Ø
3.65 Ø
L — 4.50
M
5.25
5.65
N
1.10
1.40
P — 2.50
R
11.70
12.70
S
5.00
6.00
All Dimensions in mm
PIN 1
PIN 3
PIN 2
Case
E
Maximum Ratings and Electrical Characteristics @TA=25°C unless otherwise specified
Single Phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%.
Characteristic
Symbol
U20D U20D U20D U20D U20D U20D U20D U20D
05C 10C 15C 20C 30C 40C 50D 60C
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
50 100 150 200 300 400 500 600
Unit
V
RMS Reverse Voltage
VR(RMS) 35 70 105 140 210 280 350 420 V
Average Rectified Output Current Total Device
@TC = 100°C
Per Diode
Non-Repetitive Peak Forward Surge Current
8.3ms Single Half Sine-Wave Superimposed
on Rated Load (JEDEC Method)
IO
IFSM
20
10
A
200 A
Forward Voltage per diode
@IF = 10A
Peak Reverse Current
At Rated DC Blocking Voltage
@TC = 25°C
@TC = 100°C
Reverse Recovery Time (Note 1)
VFM
IRM
trr
0.975
35
1.3 1.7
10
500
50
V
µA
nS
Typical Junction Capacitance (Note 2)
CJ
120
70 pF
Thermal Resistance Junction to Ambient per diode
Thermal Resistance Junction to Case per diode
R JA
R JC
40
1.5
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-55 to +150
°C
Note: 1. Measured with IF = 0.5A, IR = 1.0A, IRR = 0.25A.
2. Measured at 1.0 MHz and applied reverse voltage of 4.0V D.C.
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
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U20D05C – U20D60C
25
20
15
10
5
Resistive or
Inductive Load
0
0 15 30 45 60 75 90 105 120 135 150
TC, CASE TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
250
Single Half-Sine-Wave
JEDEC Method
200
150
100
50
0
1 10 100
NUMBER OF CYCLES AT 60Hz
Fig. 3 Forward Surge Current Derating Curve
20
DC, TJ = 150°C
Per Diode
16
U20D30C
12 U20D40C
8 U20D50C
U20D60C
4
U20D05C – U20D20C
0
0 5 10 15
IF(AV), AVERAGE FORWARD CURRENT (A)
Fig. 5 Forward Power Dissipation
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®
100
WON-TOP ELECTRONICS
U20D05C – U20D20C
10
U20D30C
U20D40C
1.0 U20D50C
U20D60C
0.1
0
0.4 0.8 1.2 1.6 2.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
1000
100
TC = 125°C
10
TC = 100°C
1.0
0.1
TC = 25°C
0.01
0
20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fig. 4 Typical Reverse Characteristics
250
f = 1MHz
200
150
U20D05C – U20D40C
100
U20D50C – U20D60C
50
0
0.1
1 10
VR, DC REVERSE VOLTAGE (V)
Fig. 6 Typical Junction Capacitance
100
© Won-Top Electronics Co., Ltd.
Revision: September, 2012

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WON-TOP ELECTRONICS
MARKING INFORMATION
U20D05C – U20D60C
U20DxxC
U20DxxC
xx
Polarity
= Device Number
= 05, 10, 15, 20, 30, 40, 50 or 60
= As Marked on Body
PACKAGING INFORMATION
BULK
Tube Size
L x W x H (mm)
505 x 46 x 6.5
Quantity
(PCS)
30
Inner Box Size
L x W x H (mm)
520 x 145 x 95
Quantity
(PCS)
1,200
Carton Size
L x W x H (mm)
540 x 306 x 115
Quantity
(PCS)
2,400
Approx. Gross Weight
(KG)
18.0
Note: 1. Anti-static tube, water clear color.
RECOMMENDED SCREW MOUNTING ARRANGEMENT
Recommended isolated mounting when
screw is at heatsink potential. 6-32
hardware is used.
A conical washer should be used to
apply proper force to the device. Screw
should not be tightened with any type of
air-forced torque or equipment that may
cause high impact on device package.
The interface should apply a layer of
thermal grease or a highly conductive
thermal pad for better heat dissipation.
6-32 HEX Head Screw
Plain Washer
Rectifier
Insulator
Heatsink
Conical Washer
6-32 HEX Nut
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
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U20D05C – U20D60C
®
WON-TOP ELECTRONICS
ORDERING INFORMATION
Product No.
U20D05C
U20D10C
U20D15C
U20D20C
U20D30C
U20D40C
U20D50C
U20D60C
Package Type
TO-3P
TO-3P
TO-3P
TO-3P
TO-3P
TO-3P
TO-3P
TO-3P
Shipping Quantity
30 Units/Tube
30 Units/Tube
30 Units/Tube
30 Units/Tube
30 Units/Tube
30 Units/Tube
30 Units/Tube
30 Units/Tube
1. Shipping quantity given is for minimum packing quantity only. For minimum
order quantity, please consult the Sales Department.
2. To order RoHS / Lead Free version (with Lead Free finish), add “-LF”
suffix to part number above. For example, U20D05C-LF.
WON-TOP ELECTRONICS and
are registered trademarks of Won-Top Electronics Co., Ltd (WTE). WTE has checked all information carefully and
believes it to be correct and accurate. However, WTE cannot assume any responsibility for inaccuracies. Furthermore, this information does not give the
purchaser of semiconductor devices any license under patent rights to manufacturer. WTE reserves the right to change any or all information herein
without further notice.
WARNING: DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road,
Chine Chen Dist., Kaohsiung 806, Taiwan
Phone: 886-7-822-5408 or 886-7-822-5410
Fax: 886-7-822-5417
Email: sales@wontop.com
Internet: http://www.wontop.com
We power your everyday.
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© Won-Top Electronics Co., Ltd.
Revision: September, 2012