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Taiwan Semiconductor Corporation MBRS1050
- Part No.:
- MBRS1050
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS1050.pdf
- Description:
- 10A, 50V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:4,586
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Product details
Overview
MBRS1050 from Taiwan Semiconductor is a 10 A, 50 V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, optimized for high-efficiency DC/DC conversion with 0.80 V forward voltage at 10 A and 25°C, 120 A surge capability, and 175°C maximum junction temperature. It serves as the primary output rectifier in compact switching power supplies.
For engineers reviewing the MBRS1050 datasheet, MBRS1050 pinout, MBRS1050 application, or MBRS1050 equivalent, key selection criteria include its 50 V repetitive peak reverse voltage, low VF at high current, thermal resistance (RθJC = 2°C/W), and suitability for automated SMT assembly in space-constrained industrial and adapter designs.
Technical Context
The MBRS1050 is a single-die Schottky rectifier with guard ring structure for overvoltage protection and JESD201 Class 2 whisker resistance. Its low forward voltage drop and fast recovery (no reverse recovery charge) minimize conduction loss and EMI in high-frequency SMPS topologies.
Designed for surface-mount operation in TO-263AB, it delivers 10 A average forward current with derating above 75°C case temperature and supports 8.3 ms half-sine surge currents up to 120 A without failure, meeting JEDEC moisture sensitivity level 1 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or forward converter secondary side |
| IF | 10 A - Continuous average forward current at TC ≤ 75°C; determines minimum heatsink requirement in 12 V/50 W DC/DC designs |
| VF @ 10 A, 25°C | 0.80 V - Low conduction loss enabling >92% efficiency in 5–12 V output stages |
| IFSM | 120 A - Non-repetitive surge rating; withstands startup inrush and transient overload without bond wire failure |
| RθJC | 2 °C/W - Junction-to-case thermal resistance; enables direct mounting to PCB copper pour or heatsink for thermal management |
| TJ max | 175 °C - Maximum junction temperature; allows operation in sealed enclosures with ambient up to 85°C under full load |
| IR @ 50 V, 25°C | 100 µA - Low leakage ensures minimal standby power loss in energy-efficient adapters |
Pinout & Package
TO-263AB (D2PAK) package with three terminals: Anode (pin 1), Cathode (pin 2), and exposed thermal pad (pin 3, electrically connected to cathode). Matte tin-plated leads comply with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead 1) | Input current entry point | Connected to transformer secondary or switch node; must route with low-inductance trace to minimize ringing |
| Cathode (lead 2) | Output current exit point | Connects to output capacitor and load; shared with thermal pad for lowest possible thermal impedance |
| Exposed thermal pad | Cathode extension & thermal path | Requires ≥ 200 mm² copper pour with ≥4 thermal vias to internal ground plane for RθJA ≤ 60°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown at 50 V reverse bias, improving long-term reliability in voltage-transient environments |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT lines without dry-pack handling |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives; suitable for consumer and medical-grade end equipment |
| High IFSM/IF ratio (12:1) | Supports robust operation during line surges and short-circuit events without catastrophic failure |
Applications
| Server VRM Output Rectification | Laptop AC Adapter Secondary |
|---|---|
Use Scenario: 12 V/20 A output stage in multiphase buck converter supplying CPU core voltage. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacement; conducts during low-side MOSFET on-time. Use Value: 0.80 V VF reduces conduction loss by ~1.2 W vs. silicon diode, lowering thermal stress on PCB layout. | Use Scenario: 19 V/3.42 A output rectification in compact 65 W USB-C PD adapter. IC Role / Device Role / Timing Role: Output freewheeling diode in quasi-resonant flyback topology. Use Value: TO-263AB footprint enables high-current density design while maintaining <1.5 mm profile height. |
| Industrial DC/DC Converter | Automotive Infotainment Power Supply |
Use Scenario: 5 V/10 A isolated DC/DC module for PLC I/O card power rail. IC Role / Device Role / Timing Role: Secondary-side rectifier in forward converter with active clamp reset. Use Value: 175°C TJ max supports operation in unventilated control cabinets up to 85°C ambient. | Use Scenario: 3.3 V/5 A auxiliary supply in head unit powered from 12 V battery rail. IC Role / Device Role / Timing Role: Input rectifier for buck-boost pre-regulator handling cold-crank transients. Use Value: 120 A IFSM withstands 12 V battery dips to 3.5 V without degradation during engine start. |
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-MBR1050CT | TO-220AC package; dual-diode configuration; 0.78 V VF @ 10 A, 25°C | Requires through-hole assembly; not SMT-compatible; higher RθJA (65°C/W) | Select when legacy through-hole layout exists and thermal budget allows larger footprint |
| ON Semiconductor MBR1050CT | TO-220AB package; dual common-cathode; 0.82 V VF @ 10 A, 25°C; 150°C TJ max | Not surface-mountable; lower max junction temperature limits high-ambient use | Choose only if dual-diode functionality is required and board space permits through-hole mounting |
Compared with VS-MBR1050CT and MBR1050CT, the MBRS1050 offers superior SMT manufacturability, lower thermal resistance via D2PAK thermal pad, and extended junction temperature range-critical for sealed, fanless, or automotive-adjacent power modules.
Availability
MBRS1050 is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and AC adapters requiring stable component supply, high surge tolerance, and RoHS-compliant SMT rectification.
Supply support for MBRS1050 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global power management and industrial markets since 1979.
The MBRS10xx series targets high-efficiency, high-reliability surface-mount rectification in compact power converters-designed specifically for cost-sensitive yet thermally demanding applications like consumer adapters and industrial DC/DC modules.
FAQ
What is the maximum junction temperature rating for the MBRS1050?
The MBRS1050 has a maximum junction temperature (TJ) of 175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version K2103). This allows sustained operation in high-ambient environments such as enclosed power supplies or automotive under-hood proximity, provided thermal design maintains TJ ≤ 175°C. The MBRS1050's RθJC of 2°C/W supports effective heat transfer to external heatsinks or PCB copper planes.
Is the MBRS1050 RoHS and halogen-free compliant?
Yes, the MBRS1050 is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet (Version K2103). This compliance applies to all materials including molding compound, lead finish (matte tin), and internal die construction-making the MBRS1050 suitable for consumer electronics and medical devices requiring strict environmental certification.
What is the forward voltage of the MBRS1050 at 10 A and 125°C?
The MBRS1050 exhibits a maximum forward voltage (VF) of 0.70 V at 10 A and 125°C junction temperature, per the Electrical Specifications table in the Taiwan Semiconductor datasheet (Version K2103). This value reflects real-world performance under elevated thermal stress and confirms stable conduction loss behavior across the full industrial temperature range.
Does the MBRS1050 have a guard ring structure?
Yes, the MBRS1050 incorporates a guard ring structure for overvoltage protection, as confirmed in the "Features" list of the Taiwan Semiconductor datasheet (Version K2103). This design mitigates edge breakdown under transient reverse-bias conditions, enhancing reliability in applications subject to voltage spikes-such as flyback converters with poor snubber design or input-line surge events.
What is the moisture sensitivity level (MSL) of the MBRS1050?
The MBRS1050 has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and requires no baking prior to reflow soldering. This is documented in the "Features" section of the Taiwan Semiconductor datasheet (Version K2103) and simplifies SMT manufacturing flow for high-volume assembly lines.
MBRS1050 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MBRS1050 FAQ
1.How can I place an order for MBRS1050 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS1050 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 MBRS1050 reliable?
The price and inventory of MBRS1050 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS1050 is usually 5 days.
3.What payment methods are accepted for MBRS1050?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS1050 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS1050?
MBRS1050 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS1050 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 MBRS1050?
For technical support, including MBRS1050 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS1050 requirements.
6.How does Aetrix verify that MBRS1050 is sourced from the original manufacturer or authorized distributors?
All MBRS1050 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 MBRS1050 meets industry standards.
7.What is the process for return or replacement of MBRS1050?
All MBRS1050 units undergo pre-shipment inspection (PSI). If there is an issue with MBRS1050, 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 MBRS1050 part is unused and in its original packaging.
Return procedure for MBRS1050:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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