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UGB18DCT-E3/81
Fast / Ultrafast Diode, 200 V, 18 A, Single, 1.2 V, 20 ns, 175 A
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- Manufacturer: VISHAY
- Product type: Fast & Ultrafast Recovery Rectifier Diodes
- Repetitive Reverse Voltage Vrrm Max:200V; Forward Current If(AV):18A; Diode Configuration:Single; Forward Voltage VF Max:1.2V; Reverse Recovery Time trr Max:20ns; Forward Surge Current Ifsm Ma
- No. of Pins: 2 Pin
- Product Range: -
- Qualification: -
- Diode Case Style: TO-263AB
- Diode Configuration: Single
- Forward Voltage Max: 1.2V
- Forward Surge Current: 175A
- Reverse Recovery Time: 20ns
- Average Forward Current: 18A
- Operating Temperature Max: 150°C
- Repetitive Peak Reverse Voltage: 200V
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 0.926 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**UG18xCT, UGF18xCT, UGB18xCT** ## VISHAY, ~~—~~ **==> picture [77 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> www.vishay.com<br>**----- End of picture text -----**<br> Vishay General Semiconductor ## **Dual Common Cathode Ultrafast Plastic Rectifier** **==> picture [208 x 228] intentionally omitted <==** **----- Start of picture text -----**<br> TO-220AB ITO-220AB<br>2 3 1 [2] [3]<br>1<br>UG18xCT Series UGF18xCT Series<br>PIN 1 PIN 2 PIN 1 PIN 2<br>PIN 3 CASE<br>PIN 3<br>ae s ae s<br>D [2] PAK (TO-263AB)<br>K<br>2<br>¢.<br>1<br>UGB18xCT Series<br>PIN 1 K<br>PIN 2 w t HEATSINK<br>**----- End of picture text -----**<br> ## **DESIGN SUPPORT TOOLS AVAILABLE** 3D Models ## **FEATURES** - Power pack - Glass passivated pellet chip junction - Ultrafast recovery time - Low switching losses, high efficiency - Low forward voltage drop - 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-220AB and ITO-220AB package) - AEC-Q101 qualified available - Automotive ordering code: base P/NHE3 (for ITO-220AB and D[2] PAK (TO-263AB package)) - Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 ## **TYPICAL APPLICATIONS** For use in high frequency rectifier of switching mode power supplies, inverters, freewheeling diodes, DC/DC converters, and other power switching application. ## **MECHANICAL DATA** **Case:** TO-220AB, ITO-220AB, D[2] PAK (TO-263AB) ## **PRIMARY CHARACTERISTICS** |**PRIMARY CHARACTERISTICS**|**PRIMARY CHARACTERISTICS**| |---|---| |IF(AV)|18 A| |VRRM|50 V to 200 V| |IFSM|175A| |trr|20 ns| |VF|0.95 V| |TJmax.|150 °C| |Package|TO-220AB, ITO-220AB, D2PAK (TO-263AB)| |Circuit configuration|Common cathode| Molding compound meets UL 94V-0 flammability rating Base P/N-E3 - RoHS-compliant, commercial grade Base P/NHE3_X - RoHS-compliant and AEC-Q101 qualified (“_X” denotes revision code e.g. A, B,....) **Terminals:** matte tin plated leads, solderable per J-STD-002 and JESD22-B102 E3 suffix meets JESD 201 class 1A whisker test, HE3 suffix meets JESD 201 class 2 whisker test **Polarity:** as marked **Mounting Torque:** 10 in-lbs maximum ## **MAXIMUM RATINGS** (TC = 25 °C unless otherwise noted) |**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))|**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))|**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))|**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))|**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))|**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))|**MAXIMUM RATINGS**(TC = 25 °C unless otherwise noted)TC = 25 °C unless otherwise noted)C = 25 °C unless otherwise noted)= 25 °C unless otherwise noted))| |---|---|---|---|---|---|---| |**PARAMETER**|**SYMBOL**|**UG18ACT**|**UG18BCT**|**UG18CCT**|**UG18DCT**|**UNIT**| |Max. repetitive peak reverse voltage|VRRM|50|100|150|200|V| |Max. RMS voltage|VRMS|35|70|105|140|V| |Max. DC blocking voltage|VDC|50|100|150|200|V| |Max. average forward rectified current at TC= 105 °C|IF(AV)|18||||A| |Peak forward surge current 8.3 ms single half sine-wave<br>superimposed on rated load per diode|IFSM|175||||A| |Operating junction and storage temperature range|TJ, TSTG|-65 to +150||||°C| |Isolation voltage (ITO-220AB only)<br>from terminal to heatsink t = 1 min|VAC|1500||||V| Revision: 05-Jun-2019 Document Number: 88759 **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 **UG18xCT, UGF18xCT, UGB18xCT** **==> picture [59 x 48] intentionally omitted <==** www.vishay.com ## Vishay General Semiconductor |**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)|**ELECTRICAL CHARACTERISTICS** (TC= 25 °C unless otherwise noted)| |---|---|---|---|---|---|---|---|---| |**PARAMETER**|**TEST CONDITIONS**||**SYMBOL**|**UG18ACT**|**UG18BCT**|**UG18CCT**|**UG18DCT**|**UNIT**| |Max. instantaneous forward<br>voltage per diode(1)|9.0 A|TJ= 100 °C|VF|1.1||||V| ||20 A|||1.2||||| ||5.0 A|||0.95||||| |Max. DC reverse current at<br>rated DC blocking voltage<br>per diode||TA= 25 °C|IR|10||||μA| |||TA= 100 °C||300||||| |Max. reverse recovery time<br>per diode|IF= 0.5 A, IR= 1.0 A, Irr= 0.25 A||trr|20||||ns| |Max. reverse recovery time<br>per diode|IF= 9.0 A, VR= 30 V,<br>dI/dt = 50 A/μs,<br>Irr= 10 % IRM|TJ= 25 °C|trr|30||||ns| |||TJ= 100 °C||50||||| |Max. stored charge per diode|IF= 9.0 A, VR= 30 V,<br>dI/dt = 50 A/μs,<br>Irr= 10 % IRM|TJ= 25 °C|Qrr|20||||nC| |||TJ= 100 °C||45||||| |Typical junction capacitance<br>per diode|at 4.0 V, 1 MHz||CJ|30||||pF| ## **Notes** - (1) Pulse test: 300 μs pulse width, 1 % duty cycle |**THERMAL CHARACTERISTICS**(TC= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TC= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TC= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TC= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TC= 25 °C unless otherwise noted)|**THERMAL CHARACTERISTICS**(TC= 25 °C unless otherwise noted)| |---|---|---|---|---|---| |**PARAMETER**|**SYMBOL**|**UG18**|**UGF18**|**UGB18**|**UNIT**| |Typical thermal resistance from junction to case per diode|RJC|4.0|6.0|4.0|°C/W| |**ORDERING INFORMATION(EXAMPLE)**|**ORDERING INFORMATION(EXAMPLE)**|**ORDERING INFORMATION(EXAMPLE)**|**ORDERING INFORMATION(EXAMPLE)**|**ORDERING INFORMATION(EXAMPLE)**|**ORDERING INFORMATION(EXAMPLE)**| |---|---|---|---|---|---| |**PACKAGE**|**PREFERRED P/N**|**UNIT WEIGHT (g)**|**PACKAGE CODE**|**BASE QUANTITY**|**DELIVERY MODE**| |TO-220AB|UG18DCT-E3/45|1.85|45|50/tube|Tube| |ITO-220AB|UGF18DCT-E3/45|2.00|45|50/tube|Tube| |TO-263AB|UGB18DCT-E3/45|1.35|45|50/tube|Tube| |TO-263AB|UGB18DCT-E3/81|1.35|81|800/reel|Tape and reel| |ITO-220AB|UGF18DCTHE3_A/P(1)|2.00|P|50/tube|Tube| |TO-263AB|UGB18DCTHE3_A/P(1)|1.35|P|50/tube|Tube| |TO-263AB|UGB18DCTHE3_A/I(1)|1.35|I|800/reel|Tape and reel| ## **Note** - (1) AEC-Q101 qualified, available in ITO-220AB and TO-263AB package Revision: 05-Jun-2019 Document Number: 88759 **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 **UG18xCT, UGF18xCT, UGB18xCT** **==> picture [59 x 48] intentionally omitted <==** **==> picture [77 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> www.vishay.com<br>**----- End of picture text -----**<br> ## Vishay General Semiconductor ## **RATINGS AND CHARACTERISTICS CURVES** (TA = 25 °C unless otherwise noted) **==> picture [462 x 567] intentionally omitted <==** **----- Start of picture text -----**<br> Resistive or Inductive Load<br>T J = 125 °C<br>TJ = 100 °C<br>TJ = 25 °C<br>Case Temperature (°C) Percent of Rated Peak Reverse Voltage (%)<br>Fig. 1 - Forward Current Derating Curve Fig. 4 - Typical Reverse Leakage Characteristics Per Diode<br>T 8.3 ms Single Half SineC = 105 °C -Wave IVFR = 9.0 A = 30 V 150 A/µs100 A/µs<br>dI/dt = 20 A/µs<br>50 A/µs<br>100 A/µs<br>50 A/µs<br>150 A/µs<br>20 A/µs<br>trr<br>Qrr<br>Number of Cycles at 60 Hz Junction Temperature (°C)<br>Fig. 2 - Max. Non-Repetitive Peak Forward Surge Current Per Diode Fig. 5 - Reverse Switching Characteristics Per Diode<br>100<br>T J = 125 ° C<br>f = 1.0 MHz<br>Vsig = 50 mVp-p<br>TJ = 25 °C<br>Pulse Width = 300 µs<br>1 % Duty Cycle<br>10<br>1<br>0.1 1 10 100<br>Instantaneous Forward Voltage (V) Reverse Voltage (V)<br>24 1000<br>20<br>100<br>16<br>10<br>12<br>1<br>8<br>0.1<br>4<br>0 0.01<br>0 25 50 75 100 125 150 175 0 20 40 60 80 100<br> 1000 60<br>50<br>40<br>100 30<br>20<br>10<br>10 0<br>1 10 100 0 25 50 75 100 125 150 175<br>100<br>10<br>1<br>0.1<br>0.01<br>0.4 0.6 0.8 1.0 1.2 1.4 1.6<br>Current (µA)<br>Instantaneous Reverse Leakage<br>Peak Forward Surge Current (A)<br>Average Forward Current (A)<br>(nC/ns)<br>Stored Charge/Reverse Recovery Time<br>Junction Capacitance (pF)<br>Instantaneous Forward Current (A)<br>**----- End of picture text -----**<br> Fig. 4 - Typical Reverse Leakage Characteristics Per Diode Fig. 2 - Max. Non-Repetitive Peak Forward Surge Current Per Diode Fig. 5 - Reverse Switching Characteristics Per Diode Fig. 3 - Typical Instantaneous Forward Characteristics Per Diode Fig. 6 - Typical Junction Capacitance Per Diode Revision: 05-Jun-2019 Document Number: 88759 **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 **UG18xCT, UGF18xCT, UGB18xCT** **==> picture [59 x 48] intentionally omitted <==** www.vishay.com ## Vishay General Semiconductor ## **PACKAGE OUTLINE DIMENSIONS** in inches (millimeters) **==> picture [328 x 417] intentionally omitted <==** **----- Start of picture text -----**<br> TO-220AB<br>0.415 (10.54) max.<br>0.370 (9.40) 0.154 (3.91) 0.185 (4.70)<br>0.360 (9.14) 0.148 (3.74) 0.175 (4.44)<br>0.055 (1.39)<br>0.113 (2.87)<br>0.045 (1.14)<br>0.103 (2.62)<br>0.145 (3.68)<br>0.135 (3.43)<br>0.635 (16.13) 0.603 (15.32)<br>PIN 0.625 (15.87) 0.350 (8.89) 0.573 (14.55)<br>1 2 3 0.330 (8.38)<br>0.160 (4.06)<br>1.148 (29.16)<br>0.140 (3.56)<br>1.118 (28.40) 0.110 (2.79)<br>0.057 (1.45) 0.100 (2.54)<br>0.045 (1.14) 0.560 (14.22)<br>0.530 (13.46)<br>0.105 (2.67)<br>0.095 (2.41) 0.035 (0.90)<br>0.028 (0.70)<br>0.104 (2.65)<br>0.096 (2.45) 0.205 (5.20) 0.022 (0.56)<br>0.195 (4.95) 0.014 (0.36)<br>ITO-220AB<br>0.404 (10.26) 0.190 (4.83)<br>0.384 (9.75) 0.170 (4.32)<br>0.076 (1.93) REF. 0.110 (2.79)<br>7° REF. 0.100 (2.54)<br>0.076 (1.93) REF.<br>45° REF. 0.140 (3.56) DIA. 0.135 (3.43) DIA.<br>0.125 (3.17) DIA. 0.122 (3.08) DIA.<br>0.600 (15.24) 0.671 (17.04)<br>0.580 (14.73) PIN 0.651 (16.54) 7° REF.<br>0.350 (8.89)<br>1 2 3 0.330 (8.38)<br>7° REF.<br>0.191 (4.85)<br>0.560 (14.22) 0.171 (4.35)<br>0.530 (13.46) 0.110 (2.79)<br>0.057 (1.45) 0.100 (2.54)<br>0.057 (1.45) 0.045 (1.14)<br>0.045 (1.14)<br>0.035 (0.89)<br>0.025 (0.64) 0.028 (0.71)<br>0.025 (0.64)<br>0.015 (0.38) 0.020 (0.51)<br>0.105 (2.67)<br>0.095 (2.41) 0.205 (5.21)<br>0.195 (4.95)<br>**----- End of picture text -----**<br> ## **D[[2]] PAK (TO-263AB)** **==> picture [484 x 195] intentionally omitted <==** **----- Start of picture text -----**<br> D [[2]] PAK (TO-263AB) Mounting Pad Layout<br>0.411 (10.45) 0.190 (4.83)<br>0.42 (10.66) min.<br>0.380 (9.65) 0.160 (4.06) 0.055 (1.40)<br>0.245 (6.22) 0.045 (1.14)<br>MIN.<br>K<br>0.33 (8.38) min.<br>0.055 (1.40)<br>0.360 (9.14)<br>0.047 (1.19)<br>0.320 (8.13) 0.624 (15.85) 0.670 (17.02)<br>1 K 2 0.591 (15.00) 0.591 (15.00)<br>0 to 0.01 (0 to 0.254)<br>0.110 (2.79)<br>0.15 (3.81) min.<br>0.090 (2.29)<br>0.037 (0.940)<br>0.021 (0.53)<br>0.027 (0.686)<br>0.08 (2.032) MIN.<br>0.014 (0.36)<br>0.105 (2.67)<br>0.140 (3.56)<br>0.095 (2.41)<br>0.205 (5.20) 0.110 (2.79) 0.105 (2.67)<br>0.195 (4.95) 0.095 (2.41)<br>**----- End of picture text -----**<br> Revision: 05-Jun-2019 Document Number: 88759 **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** Vishay www.vishay.com **==> picture [59 x 48] intentionally omitted <==** ## **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. _**© 2019 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED**_ Revision: 01-Jan-2019 Document Number: 91000 **1**
Updated at June 4, 2026
Vishay is a global leader in the manufacturing of discrete semiconductors and passive electronic components. Renowned for its exceptional quality and engineering expertise, the company produces highly reliable solutions that drive innovation across the industrial, automotive, telecommunications, and consumer electronics markets. From advanced factory automation to vehicle electrification, Vishay components provide the foundational building blocks for modern electronic design. The company's expansive portfolio is heavily focused on efficient power management, signal routing, and energy storage. Within its passive component lineup, Vishay is recognized for its extensive array of high-performance capacitors, including robust aluminium electrolytic, film, and polymer variants, alongside highly efficient power inductors. In the realm of discrete semiconductors, Vishay is a premier manufacturer of single and dual MOSFETs, as well as a vast selection of Schottky, Zener, and fast-recovery rectifier diodes designed for demanding power applications. Furthermore, Vishay delivers industry-leading circuit protection and thermal management solutions. With a broad offering of transient voltage suppressors (TVS diodes) and temperature-sensing NTC thermistors, these components are engineered to safeguard sensitive circuitry against both electrical and thermal overstress. By combining this vital mix of advanced discretes and passives, Vishay enables engineers to develop robust, space-saving, and highly resilient electronic systems.
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