BETAReverse voltage limit100 V · each diode
Dual common-cathode Schottky rectifier
MBR20100CT Specifications
Review MBR20100CT electrical specifications, operating conditions and package details.
Package view
Key specifications
Two junctions allow rectification or supply ORing. Heat, reverse leakage and the live tab still need attention.
TO-220 total current20 A · case 133°C
Current per diode10 A · same case condition
TO-220 junction maximum150 °C · absolute limit
Package details
MBR20100CT-E3 · TO-220AB
| Property | Details |
|---|---|
| Manufacturer | Vishay General Semiconductor |
| Part number | MBR20100CT-E3 |
| Package | TO-220AB |
| Connections | 3 pins |
| Mounting | Through-hole |
| Lead pitch | 2.54 mm |
| Package code | TO220AB |
| Thermal reference | 20 A total at case 133°C; 150°C junction maximum |
Device and package selection
Two independently documented references
Manufacturer specifications 5 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Through-hole | Vishay MBR20100CT-E3 | TO-220AB |
| SMD | Diodes Incorporated MBRB20100CT | D2PAK / TO263AB |
| Pin functions | 1=A1; 2=K; 3=A2 | Both selected references |
| Metal tab | Common cathode | Not an isolated mounting surface |
| Architecture | Two Schottky junctions | Common cathode connection |
No specifications match. Try a parameter name or a unit.
Do not transfer temperature or thermal-resistance ratings between manufacturers.
TO-220 absolute maximum ratings
Vishay 89033, 100 V column
Manufacturer specifications 7 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Reverse peak / working / DC | 100 V | Each diode |
| Average current | 20 A total / 10 A per diode | Case 133°C |
| Forward surge | 150 A per diode | Single 8.3 ms half sine on rated load |
| Avalanche energy | 130 mJ per diode | TJ=25°C; L=60 mH |
| Repetitive reverse peak current | 0.5 A per diode | 2 µs; 1 kHz; TJ=38±2°C |
| Voltage slew | 10,000 V/µs | At rated reverse voltage |
| Junction / storage | −65 to +150°C | Absolute limits |
No specifications match. Try a parameter name or a unit.
The fully insulated MBRF variant is not the selected TO-220 device.
TO-220 electrical characteristics
Vishay per-diode limits
Manufacturer specifications 7 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Forward drop | 0.80 V maximum | 10 A; case 25°C |
| Hot forward drop | 0.65 V maximum | 10 A; case 125°C |
| High-current pulse drop | 0.75 V maximum | 20 A; case 125°C |
| Forward test | 300 µs; 1% duty | Avoid self-heating during measurement |
| Reverse leakage | 100 µA maximum | Rated reverse; TJ=25°C |
| Hot reverse leakage | 6 mA maximum | Rated reverse; TJ=125°C |
| Typical RθJC / RθJA | 2 / 60°C/W per diode | Manufacturer thermal reference |
No specifications match. Try a parameter name or a unit.
Check dissipation and cooling for both junctions, not only the total current label.
SMD electrical and thermal reference
Diodes DS37071, MBRB20100CT
Manufacturer specifications 8 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Reverse voltage | 100 V | Per leg |
| Average output | 10 A per leg / 20 A total | Half-wave 60 Hz resistive/inductive; derate capacitive loads 20% |
| Forward surge | 150 A | Single 8.3 ms half sine on rated load |
| Forward drop | 0.79 V typical; 0.84 V maximum | 10 A; TJ=25°C |
| Hot forward drop | 0.72 V maximum | 10 A; TJ=125°C |
| Reverse leakage | 0.1 mA / 10 mA maximum | 100 V; TJ=25 / 125°C |
| Typical RθJC / RθJA | 5 / 20°C/W | Tested with manufacturer’s 2-inch aluminum board |
| Junction / storage | −55 to +175°C | SMD reference only |
No specifications match. Try a parameter name or a unit.
Use the SMD PDF for its own derating curves and test setup.
Package and PCB geometry
Dimensions before assembly
Manufacturer specifications 7 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| TO-220 lead pitch | 2.45–2.65 mm | Nominal 2.54 mm |
| TO-220 body width | 9.65–10.54 mm | Vishay outline |
| TO-220 lead width / thickness | 0.70–0.90 / 0.36–0.56 mm | Vishay outline |
| Authored through-hole pads | 2.2 mm copper; 1.2 mm holes | Engineering layout choice |
| SMD cathode land | 10.41 × 7.01 mm | Diodes suggested layout |
| SMD anode lands | 1.10 × 3.50 mm | 5.08 mm centers |
| SMD overall land span | 15.99 mm | From cathode land top to anode land bottom |
No specifications match. Try a parameter name or a unit.
Check the actual package revision, heatsink and PCB assembly process.
Supply ORing example
Isolated low-voltage teaching circuit
Manufacturer specifications 6 parameters
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| Parameter | Value | Conditions / notes |
|---|---|---|
| Sources | 5 V and 3.3 V DC | Both current limited; shared ground |
| Load | 100 Ω; at least 0.5 W | Connected to common cathode |
| Assumed forward drop | 0.5 V | Not a guaranteed operating value |
| Output / load current | 4.5 V / 45 mA | Higher source supplies load |
| Load / diode dissipation | 202.5 / 22.5 mW | Fixed-drop calculation |
| Lower-source branch | Approximately 1.2 V reverse bias | Leakage remains; not a perfect disconnect |
No specifications match. Try a parameter name or a unit.
This is not an ideal-diode controller and does not guarantee equal current sharing.
Connections by function
Select a pin for its function, connection guidance and electrical notes.