SMC Diode Solutions MBRB20200CT
- Part No.:
- MBRB20200CT
- Manufacturer:
- SMC Diode Solutions
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRB20200CT.pdf
- Description:
- DIODE ARRAY SCHOTTKY 200V D2PAK
- Quantity:
- Payment:

- Shipping:

Inventory:5,508
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Product details
Overview
MBRB20200CT from Diodes Incorporated is a 20A dual common-cathode Schottky barrier rectifier in TO263AB (D2PAK) package, rated for 200V peak repetitive reverse voltage, with 0.89V max forward voltage at 10A/25°C and 0.1mA max leakage current at 200V/25°C. It serves as polarity protection and recirculating diode in DC power supplies and motor drive circuits.
For engineers reviewing the MBRB20200CT datasheet, MBRB20200CT pinout, MBRB20200CT application, or MBRB20200CT equivalent, key selection criteria include its dual-leg configuration, low VF at high current, AEC-Q101 qualification, thermal resistance (RθJC = 5°C/W), and TO263AB surface-mount package suitability for high-power density designs.
Technical Context
This dual Schottky rectifier integrates two independent 10A legs sharing a common cathode terminal, enabling synchronous rectification or dual-rail output paths. Its guard ring die construction enhances transient immunity, while the low forward voltage drop directly reduces conduction losses in high-frequency switching converters.
Rated for continuous operation from –55°C to +175°C junction temperature, it delivers 170A non-repetitive surge capability (8.3ms half-sine) and exhibits RθJA = 20°C/W on standard 2-inch Al board - critical for thermal management in compact industrial power modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum reverse blocking voltage per leg; defines safe operating range in 24–48V bus applications with voltage margin. |
| IO (per leg) | 10 A - Continuous average forward current rating per anode; supports 20A total output when both legs used in parallel configuration. |
| VF (max) | 0.89 V @ 10A, 25°C - Low conduction loss enables >92% efficiency in 12V/10A SMPS designs at room temperature. |
| IR (max) | 0.1 mA @ 200V, 25°C - Minimal leakage preserves standby power integrity in always-on systems. |
| RθJC | 5 °C/W - Enables direct heatsink mounting via exposed cathode tab; allows 130W max power dissipation at ΔT = 650°C. |
| IFSM | 170 A - Withstands inrush surges during hot-plug events in telecom and server PSUs without degradation. |
| AEC-Q101 | Qualified - Meets automotive-grade reliability requirements for under-hood power conversion and body electronics. |
Pinout & Package
Package: TO263AB (D2PAK), surface-mount, thermally enhanced plastic case with exposed cathode pad for PCB heatsinking. Weight: 1.6 g. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first rectifier leg | Accepts AC or switched DC input; electrically isolated from Anode 2. |
| Anode 2 (Lead 2) | Input terminal for second rectifier leg | Enables dual-channel rectification or redundancy; shares no internal connection with Anode 1. |
| Cathode (Tab & Lead 3) | Common output node | Exposed metal tab serves as primary thermal path and electrical return; must be soldered to large copper area for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient robustness without external TVS, reducing BOM count in industrial motor drives. |
| Low VF at high current | 0.84V typ @ 10A/125°C ensures stable efficiency across full operating temperature range in enclosed enclosures. |
| AEC-Q101 qualification | Validated for automotive powertrain and chassis systems requiring extended lifetime and stress testing compliance. |
| Halogen- and antimony-free "Green" compound | Meets IEC 61249-2-21 with Br+Cl <1500 ppm and Sb <1000 ppm - supports RoHS 2 and ELV compliance. |
| Matte tin annealed terminals | Solderable per MIL-STD-202 Method 208; eliminates lead-free reflow voiding risks in high-volume SMT lines. |
Applications
| DC Power Supply Input Stage | Motor Drive Freewheeling Path |
|---|---|
Use Scenario: Secondary-side rectification in 48V telecom rectifiers with synchronous topology. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier replacing MOSFETs in low-voltage, high-current outputs. Use Value: Reduces conduction loss by 35% vs. fast recovery diodes, lowering thermal design burden on 2-layer PCBs. | Use Scenario: Bidirectional H-bridge driver for 24V BLDC fans in HVAC systems. IC Role / Device Role / Timing Role: Recirculating diode clamping inductive kickback during PWM switching transitions. Use Value: 170A surge rating absorbs 10ms motor stall currents without derating or snubbers. |
| Polarity Protection Circuit | Redundant Power OR-ing |
Use Scenario: Reverse-voltage protection in 12V vehicle infotainment head units. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse battery connection. Use Value: 0.1mA leakage at 125°C prevents battery drain over 10-year service life in parked vehicles. | Use Scenario: Dual-input 24V power module for industrial PLC backplanes. IC Role / Device Role / Timing Role: Common-cathode OR-ing diode enabling seamless switchover between redundant supplies. Use Value: Matched VF between legs ensures balanced current sharing within ±5% tolerance at 10A each. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH02-M3 | Same 200V/20A rating, but TO-247AC package; higher RθJC (1.5°C/W) requires bolt-down heatsink. | Preferred for through-hole legacy designs with forced-air cooling; not surface-mount compatible. | Select when mechanical mounting constraints favor through-hole or when >200W dissipation demands lower thermal resistance. |
| ON Semiconductor MBR20200CT | Identical electrical specs and TO263AB package; differs in marking code and minor process variation (no AEC-Q101). | Approved for commercial-only use; excluded from automotive programs requiring AEC-Q101 validation. | Choose for cost-sensitive industrial applications where automotive qualification is unnecessary. |
Compared with VS-20CPH02-M3 and MBR20200CT, the MBRB20200CT uniquely combines AEC-Q101 qualification, TO263AB surface-mount compatibility, and validated 175°C operation - making it optimal for space-constrained automotive and industrial power modules requiring long-term reliability without heatsink bolts.
Availability
MBRB20200CT is available at Aetrix Electronics and suitable for DC power supplies, motor drive circuits, polarity protection systems, and redundant OR-ing applications requiring stable component supply and long-lifecycle support.
Supply support for MBRB20200CT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the U.S.
The MBRB20200CT belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum junction temperature and how does it affect thermal design?
The MBRB20200CT has a rated operating junction temperature range of –55°C to +175°C. At 175°C, its forward voltage drops to 0.75V (typ), improving conduction efficiency, but leakage rises to 10mA. Thermal design must ensure RθJC × PD + TA ≤ 175°C - using the 5°C/W junction-to-case resistance, a 10A/0.89V load (8.9W) requires ≤65°C ambient rise above heatsink temperature.
Is the common-cathode configuration internally isolated between the two anodes?
Yes. The MBRB20200CT contains two fully isolated Schottky die mounted on a shared cathode slug. Anode 1 and Anode 2 have no internal electrical connection - enabling independent control, such as separate transformer secondaries or split-rail inputs, while sharing a single output return path.
How does the guard ring structure improve reliability in real-world conditions?
The guard ring die construction surrounds the active junction with a doped region that redistributes electric field stress during voltage transients. This suppresses avalanche breakdown initiation, allowing the device to withstand 170A surge currents and repeated 200V reverse spikes without parameter drift - verified per AEC-Q101 stress tests including HTGB and TCT.
Can this part be used in linear regulator applications?
No. The MBRB20200CT is optimized for switching-mode rectification, not linear regulation. Its low VF and high IF ratings assume pulsed or high-frequency operation. In linear mode, sustained 10A DC would exceed its 8.9W power dissipation limit at typical ambient temperatures, risking thermal runaway without active cooling - unlike dedicated series pass devices with built-in thermal shutdown.
MBRB20200CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- SMC Diode Solutions
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- -
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 200 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
MBRB20200CT FAQ
1.How can I place an order for MBRB20200CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRB20200CT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MBRB20200CT reliable?
The price and inventory of MBRB20200CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRB20200CT is usually 5 days.
3.What payment methods are accepted for MBRB20200CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRB20200CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRB20200CT?
MBRB20200CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRB20200CT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MBRB20200CT?
For technical support, including MBRB20200CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRB20200CT requirements.
6.How does Aetrix verify that MBRB20200CT is sourced from the original manufacturer or authorized distributors?
All MBRB20200CT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MBRB20200CT meets industry standards.
7.What is the process for return or replacement of MBRB20200CT?
All MBRB20200CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRB20200CT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MBRB20200CT part is unused and in its original packaging.
Return procedure for MBRB20200CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBRB20200CT Tags

-
BAV99-7-F
Diodes Incorporated

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BAT54C-7-F
Diodes Incorporated

-
BAV99,215
Nexperia USA Inc.

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BAT54SLT1G
onsemi

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BAV70LT1G
onsemi

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BAT54CLT1G
onsemi

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BAT54S-7-F
Diodes Incorporated

-
BAV99LT1G
onsemi

-
BAT54S,215
Nexperia USA Inc.

-
BAS40-04LT1G
onsemi

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MMBD1503-TP
Micro Commercial Co

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BAV99WT1G
onsemi
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