SMC Diode Solutions MBR20100CTP
- Part No.:
- MBR20100CTP
- Manufacturer:
- SMC Diode Solutions
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR20100CTP.pdf
- Description:
- DIODE ARRAY SCHOTT 100V TO-220AB
- Quantity:
- Payment:

- Shipping:

Inventory:1,950
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Product details
Overview
MBR20100CTP from Diodes Incorporated is a 20A dual common-cathode Schottky barrier rectifier in ITO-220S package, rated for 100V peak reverse voltage, with 0.85V max forward voltage at 10A and 130A non-repetitive surge capability; used in high-efficiency AC/DC secondary-side rectification for industrial power supplies.
For engineers reviewing the MBR20100CTP datasheet, MBR20100CTP pinout, MBR20100CTP application, or MBR20100CTP equivalent, key selection criteria include per-leg thermal resistance (3°C/W), isolated heat sink tab, soft switching behavior, and UL 1557 certification for safety-critical power conversion designs.
Technical Context
This dual-diode Schottky rectifier integrates two independent 10A-rated anode legs sharing a common cathode terminal, enabling center-tapped transformer or dual-output DC/DC converter topologies. Its low VF and soft recovery minimize conduction loss and EMI generation in high-frequency switching applications.
The ITO-220S package features an electrically isolated heat sink tab (not connected to cathode), allowing direct mounting to chassis ground without shorting the output rail. Thermal resistance from junction to case is 3°C/W per leg, supporting sustained 20A total current with adequate heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage per diode leg; defines safe operating limit in bridge or center-tap configurations. |
| IO (per leg) | 10 A - Continuous average forward current rating per anode; total device handles 20A with shared cathode. |
| VF @ 10A | 0.85 V max - Low conduction loss at rated current, reducing power dissipation and improving efficiency in 12–48V output supplies. |
| IFSM | 130 A - Non-repetitive surge current capability; withstands inrush and transient overloads without failure. |
| RTJC | 3 °C/W - Junction-to-case thermal resistance per leg; enables precise heatsink sizing for thermal management in enclosed power systems. |
| IR @ 100V | 0.1 mA max @ 25°C - Low leakage ensures minimal standby power loss and stable voltage hold-up in offline SMPS. |
Pinout & Package
Package: ITO-220S - molded plastic case with electrically isolated heat sink tab (UL 94V-0), matte tin-plated copper leadframe, 1.335g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode A) | First anode input | Independent high-current input path for first rectification leg; electrically isolated from tab and cathode. |
| 2 (Common Cathode) | Shared cathode output | Single low-impedance return node for both diode legs; connects to system ground or output rail. |
| 3 (Anode B) | Second anode input | Independent high-current input path for second rectification leg; fully isolated from Anode A and tab. |
| Tab (Heat Sink) | Thermal interface only | Electrically isolated from cathode and all pins; allows direct mounting to grounded heatsink without circuit short. |
Key Features
| Feature | Design Value |
|---|---|
| Soft, fast switching | Minimizes reverse recovery ringing and EMI in >100kHz SMPS designs without snubbers. |
| Isolated heat sink tab | Enables chassis-grounded thermal management while maintaining electrical isolation of cathode output. |
| UL 1557 certification | Validated dielectric strength and creepage/clearance for safety-compliant industrial power supplies. |
| Low VF temperature stability | Forward voltage increases only marginally up to 125°C, ensuring consistent efficiency across operating range. |
Applications
| Server PSU Secondary Rectification | Industrial DC/DC Converter Output |
|---|---|
Use Scenario: High-density 12V/48V output stage in 80 PLUS Titanium server power supplies. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier replacing synchronous MOSFETs where gate drive complexity must be avoided. Use Value: Delivers <0.85V conduction drop at 10A/leg with no control timing overhead, simplifying layout and reducing BOM count. | Use Scenario: Isolated dual-output (±15V) DC/DC module for PLC analog I/O modules. IC Role / Device Role / Timing Role: Common-cathode dual rectifier providing independent, low-loss positive and negative rail generation. Use Value: Shared cathode reduces component count vs. discrete diodes; isolated tab enables direct heatsink mounting to metal enclosure. |
| Solar Microinverter DC Link | Medical Power Supply Output Stage |
Use Scenario: DC-side rectification in string-level solar microinverters operating at 60–100V bus. IC Role / Device Role / Timing Role: High-surge-capable Schottky rectifier handling PV panel transients and partial shading currents. Use Value: 130A IFSM withstands lightning-induced surges; soft switching suppresses EMI in sensitive RF environments. | Use Scenario: Secondary-side rectification in Class II medical-grade AC/DC adapters (e.g., patient monitor power). IC Role / Device Role / Timing Role: UL-certified Schottky rectifier meeting reinforced insulation requirements for patient-connected equipment. Use Value: UL 1557 listing validates creepage/clearance; low IR ensures stable no-load regulation critical for battery-backed systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual common-cathode Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH05 | 50V VRRM, 20A total, TO-247AC package, no isolated tab | Limited to ≤50V systems; requires insulated mounting hardware for chassis grounding | Select when lower voltage rating suffices and TO-247 footprint is preferred. |
| ON Semiconductor MBR20100CT | Same specs, but standard ITO-220 (non-isolated tab), UL recognized not certified | Cannot mount tab directly to grounded heatsink without insulator; lacks UL 1557 full certification | Choose for cost-sensitive non-safety-critical applications where isolation is managed externally. |
Compared with VS-20CPH05 and MBR20100CT, the MBR20100CTP uniquely combines 100V rating, dual-leg isolation, and UL 1557 certification in a thermally optimized ITO-220S package-enabling simplified, safety-compliant, high-power rectification without added insulation hardware or derating.
Availability
MBR20100CTP is available at Aetrix Electronics and suitable for industrial power supplies, solar microinverters, and medical AC/DC adapters requiring stable component supply, long-lifecycle availability, and certified thermal performance.
Supply support for MBR20100CTP 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 US.
The MBR20100CTP belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical secondary-side rectification in industrial, computing, and renewable energy power systems.
FAQ
What is the maximum junction temperature for continuous operation?
The MBR20100CTP supports continuous operation from –65°C to +175°C junction temperature. At ambient temperatures above 100°C, derating is required per Fig. 3 in the datasheet: at 125°C ambient, maximum average forward current drops to ~12A per leg with proper heatsinking and 3°C/W thermal path.
Can the heat sink tab be connected directly to system ground?
Yes-the ITO-220S package's heat sink tab is electrically isolated from the cathode and all pins per UL 1557 testing. It may be bolted directly to a grounded metal chassis without risk of shorting the output circuit, simplifying mechanical integration and thermal design.
How does the soft switching characteristic benefit EMI performance?
Soft switching reduces reverse recovery dv/dt and eliminates hard turn-off current spikes, suppressing high-frequency ringing on the output rail. This lowers conducted EMI by up to 10dB in the 30–100MHz band, easing compliance with CISPR 22/32 Class B limits without additional filtering components.
Is the MBR20100CTP suitable for use in life support equipment?
No-Diodes Incorporated explicitly prohibits use of the MBR20100CTP in life support devices or systems without prior written approval from its CEO. While UL-certified, it is not qualified or warranted for applications where failure could reasonably cause injury or death, per Diodes' Life Support Notice in the datasheet.
MBR20100CTP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- SMC Diode Solutions
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 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 @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
MBR20100CTP FAQ
1.How can I place an order for MBR20100CTP through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR20100CTP 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 MBR20100CTP reliable?
The price and inventory of MBR20100CTP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR20100CTP is usually 5 days.
3.What payment methods are accepted for MBR20100CTP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR20100CTP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR20100CTP?
MBR20100CTP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR20100CTP 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 MBR20100CTP?
For technical support, including MBR20100CTP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR20100CTP requirements.
6.How does Aetrix verify that MBR20100CTP is sourced from the original manufacturer or authorized distributors?
All MBR20100CTP 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 MBR20100CTP meets industry standards.
7.What is the process for return or replacement of MBR20100CTP?
All MBR20100CTP units undergo pre-shipment inspection (PSI). If there is an issue with MBR20100CTP, 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 MBR20100CTP part is unused and in its original packaging.
Return procedure for MBR20100CTP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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