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Taiwan Semiconductor Corporation MBR1050H
- Part No.:
- MBR1050H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
MBR1050H.pdf
- Description:
- 10A, 50V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:9,969
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Product details
Overview
MBR1050H from Taiwan Semiconductor is a 10A, 50V AEC-Q101-qualified Schottky barrier rectifier in TO-220AC package, featuring 0.80V max forward voltage at 10A/25°C, 150A surge current capability, and guard ring overvoltage protection-used in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the MBR1050H datasheet, MBR1050H pinout, MBR1050H application, or MBR1050H equivalent, key selection criteria include its AEC-Q101 qualification, TJ = –55°C to +150°C operating range, 3°C/W junction-to-case thermal resistance, and 10mA reverse leakage at 125°C under rated VR.
Technical Context
This single-die Schottky rectifier uses platinum-silicide or similar low-barrier metallization to achieve fast switching (no minority-carrier storage) and low forward conduction loss. Its guard ring structure enhances ruggedness against transient overvoltage events common in automotive load-dump conditions.
The device operates with zero recovery time and exhibits minimal reverse recovery charge (QRR ≈ 0), enabling high-frequency operation up to 20kHz square-wave peak repetitive forward current (IFRM = 20A). Thermal performance is defined by RθJC = 3°C/W and maximum junction temperature of 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe DC or peak AC reverse bias limit |
| IF | 10 A - Continuous average forward current at case temperature ≤ 75°C; derates linearly above |
| VF (max) | 0.80 V @ 10A, 25°C - Directly determines conduction loss (Pcond ≈ 8W at full load) |
| IFSM | 150 A - Non-repetitive surge rating for 8.3ms half-sine; supports inrush and fault-current handling |
| RθJC | 3 °C/W - Enables thermal design with heatsink; 30°C rise per 10W dissipated at junction |
| IR (max) | 10 mA @ 125°C - Reverse leakage sets standby power loss and thermal runaway margin in hot environments |
| TJ max | +150 °C - Junction temperature limit; allows operation in under-hood automotive locations |
Pinout & Package
Package: TO-220AC - 3-lead through-hole thermally enhanced outline with isolated tab (cathode-connected tab), matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m max mounting torque.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to source-side rail; must handle full 10A continuous and 150A surge |
| Cathode | Output current exit point | Internally bonded to metal tab; electrically and thermally coupled to heatsink |
| Tab (Cathode) | Thermal & electrical cathode terminal | Provides primary heat path to heatsink; requires insulating washer if mounted to grounded chassis |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power stages |
| Guard ring structure | Improves edge termination robustness-enables reliable operation during 12V system load dump transients (ISO 7637-2 Pulse 5a) |
| Low VF (0.80V max) | Reduces conduction loss by ~30% vs. comparable Si PN rectifiers, improving efficiency in 12V–48V DC-DC stages |
| High IFSM/IF ratio (15:1) | Supports short-term overload without bond-wire fusing-critical for adapter and server PSU inrush management |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing and end-of-life processing |
Applications
| Automotive DC-DC Converters | Industrial SMPS |
|---|---|
Use Scenario: Step-down conversion from 48V battery to 12V auxiliary rail in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter topology. Use Value: AEC-Q101 qualification and 150°C max junction temperature ensure reliability under hood temperatures up to 125°C ambient. | Use Scenario: Secondary-side rectification in open-frame 300W industrial switch-mode power supply. IC Role / Device Role / Timing Role: High-efficiency freewheeling diode replacing fast recovery diodes in flyback or forward converters. Use Value: 0.80V VF reduces conduction loss by 2.5W vs. Si diode at 10A, lowering heatsink requirements and improving thermal margin. |
| Telecom Adapters | Server Power Modules |
Use Scenario: AC-DC adapter for 5G remote radio units requiring compact, high-efficiency 12V/24V output. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback with 100kHz+ switching frequency. Use Value: Zero reverse recovery eliminates switching loss contribution, enabling >92% efficiency at light-to-full load. | Use Scenario: OR-ing diode and secondary rectifier in redundant 48V–12V intermediate bus converter for AI accelerators. IC Role / Device Role / Timing Role: Low-loss, high-surge-capability rectifier handling both steady-state and fault-current paths. Use Value: 150A IFSM withstands parallel MOSFET failure events without catastrophic short, supporting system-level fault containment. |
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-220AB dual common-cathode configuration; 0.78V VF max; no AEC-Q101 qualification | Designed for dual-output or center-tap rectification; not validated for automotive temperature cycling or vibration | Select when dual-diode topology is required and automotive qualification is unnecessary |
| ON Semiconductor MBR1050CT | TO-220AB package; 0.82V VF max; AEC-Q101 available only in MBR1050H variant (not CT) | Same voltage/current rating but different pinout and thermal path; CT version lacks isolated tab | Choose MBR1050H over MBR1050CT when heatsinking via isolated tab is mandatory and automotive compliance is required |
Compared with VS-MBR1050CT and MBR1050CT, the MBR1050H provides verified AEC-Q101 qualification, TO-220AC's isolated cathode tab for direct heatsink mounting, and tighter VF spec-making it the preferred choice for automotive and thermally constrained industrial designs where single-diode layout and qualification are critical.
Availability
MBR1050H is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, telecom adapters, and server power modules requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for MBR1050H 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 automotive, industrial, and computing markets since 1979.
The MBR10xxH series belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability 12V–48V automotive and industrial power conversion where low VF, surge robustness, and thermal stability are critical.
FAQ
What does the 'H' suffix in MBR1050H signify?
The 'H' suffix in MBR1050H indicates full AEC-Q101 qualification per revision D, including stress testing for temperature cycling, humidity bias, mechanical shock, and board-level reliability. This distinguishes it from standard MBR1050, which lacks automotive validation and may not meet vehicle-grade lifetime or failure-rate requirements.
Is MBR1050H pin-compatible with non-H variants like MBR1050?
Yes, MBR1050H shares identical TO-220AC mechanical footprint, pinout, and electrical specifications with MBR1050. The 'H' denotes qualification status only-not physical or functional differences-so PCB layout and schematic symbols remain unchanged when upgrading to the AEC-Q101 version.
What is the maximum recommended case temperature for continuous operation of MBR1050H?
The maximum recommended case temperature for continuous operation of MBR1050H is 75°C. Beyond this, average forward current must be linearly derated per the datasheet curve; at 100°C case temperature, IF is limited to approximately 6.5A to maintain junction temperature ≤150°C.
Does MBR1050H have an isolated tab, and how should it be mounted?
Yes, MBR1050H uses TO-220AC package with electrically isolated cathode tab. Mount using a thermally conductive but electrically insulating pad (e.g., mica or polymer film) between tab and heatsink when chassis ground isolation is required; otherwise, direct mounting is permissible if cathode is referenced to system ground.
How does the guard ring in MBR1050H improve reliability in automotive applications?
The guard ring in MBR1050H mitigates edge breakdown during transient overvoltage events such as ISO 7637-2 Pulse 5a (load dump), preventing localized avalanche and premature failure. This structural enhancement enables sustained operation at rated VRRM under harsh automotive electrical environments where unguarded Schottky devices would degrade prematurely.
MBR1050H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
MBR1050H FAQ
1.How can I place an order for MBR1050H through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR1050H 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 MBR1050H reliable?
The price and inventory of MBR1050H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1050H is usually 5 days.
3.What payment methods are accepted for MBR1050H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1050H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR1050H?
MBR1050H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR1050H 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 MBR1050H?
For technical support, including MBR1050H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1050H requirements.
6.How does Aetrix verify that MBR1050H is sourced from the original manufacturer or authorized distributors?
All MBR1050H 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 MBR1050H meets industry standards.
7.What is the process for return or replacement of MBR1050H?
All MBR1050H units undergo pre-shipment inspection (PSI). If there is an issue with MBR1050H, 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 MBR1050H part is unused and in its original packaging.
Return procedure for MBR1050H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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