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Taiwan Semiconductor Corporation MBR1550CTH
- Part No.:
- MBR1550CTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR1550CTH.pdf
- Description:
- DIODE ARR SCHOTT 50V 15A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,792
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Product details
Overview
MBR1550CT from Taiwan Semiconductor is a 15A, 50V dual-die Schottky barrier rectifier in TO-220AB package, featuring 0.75V max forward voltage at 7.5A/25°C, 150A surge rating, and AEC-Q101 qualification for automotive-grade reliability. It delivers low conduction loss in high-frequency DC/DC converters and switching power supplies.
For engineers reviewing the MBR1550CT datasheet, MBR1550CT pinout, MBR1550CT application, or MBR1550CT equivalent, key selection criteria include its 50V VRRM, dual-common-cathode configuration, 300µA max reverse leakage at 25°C, thermal resistance (RθJC = 1.5°C/W), and AEC-Q101 qualification status.
Technical Context
This dual-die Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling full-wave rectification or dual-channel output in compact layouts. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability standards.
Designed for high-efficiency operation up to 150°C junction temperature, it supports 8.3ms single-half-sine surge currents up to 150A and exhibits dv/dt capability of 10,000 V/µs - critical for noise-immune switching in automotive and industrial SMPS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage; defines safe blocking capability in 48V system rails. |
| IF | 15 A - Continuous forward current per diode; supports sustained 15A DC output in compact TO-220AB footprint. |
| IFSM | 150 A - Non-repetitive surge rating; handles cold-start inrush and transient overload without failure. |
| VF (max) | 0.75 V @ 7.5A, 25°C - Low conduction loss enables >92% efficiency in 12V–48V DC/DC stages. |
| IR (max) | 300 µA @ 50V, 25°C - Minimal leakage preserves standby power budget in always-on systems. |
| RθJC | 1.5 °C/W - Enables direct heatsink mounting with predictable thermal rise under full load. |
| TJ max | 150 °C - Extended junction rating supports under-hood automotive environments and sealed industrial enclosures. |
Pinout & Package
Package: TO-220AB - Insulated case with center tab (cathode), two outer leads (anodes), UL 94V-0 molding compound, and 1.88g mass. Mounting torque ≤0.56 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 (left) | Anode 1 | Input path for first rectifier leg; electrically isolated from Lead 2 and tab. |
| Lead 2 (right) | Anode 2 | Input path for second rectifier leg; enables dual-input or center-tap transformer interface. |
| Tab (center) | Common Cathode | Shared output node; thermally and electrically connected to heatsink; must be insulated if chassis-grounded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HAST, etc.). |
| Guard ring structure | Prevents premature edge breakdown under voltage transients; improves ruggedness in noisy 12V/48V bus environments. |
| Dual-die common-cathode | Reduces PCB area vs. two discrete SMT Schottkys; simplifies layout for full-wave bridge or dual-output designs. |
| Matte tin-plated leads | Ensures reliable solder joint formation per J-STD-002; eliminates whisker risk per JESD201 Class 2. |
| 10,000 V/µs dv/dt rating | Withstands fast-switching gate driver noise and EMI coupling without false turn-on or latch-up. |
Applications
| Automotive DC/DC Converters | Industrial SMPS Outputs |
|---|---|
Use Scenario: 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFETs in secondary-side topology. Use Value: 0.75V VF reduces conduction loss by ~35% vs. silicon diodes, improving converter efficiency at 15A continuous load. | Use Scenario: Output rectification in 3kW telecom rectifier with forced-air cooling. IC Role / Device Role / Timing Role: Dual-leg freewheeling diode in phase-shifted full-bridge topology. Use Value: 150A IFSM withstands startup surges; RθJC = 1.5°C/W enables stable thermal performance at 125°C ambient. |
| Server PSU Secondary Side | Medical Power Adapters |
Use Scenario: +12V and +5V dual-output rails in redundant server power supply units. IC Role / Device Role / Timing Role: Common-cathode dual rectifier delivering independent regulated outputs from shared transformer winding. Use Value: Dual-die integration eliminates two discrete packages, reducing layout area by 40% and interconnect inductance. | Use Scenario: Isolated AC/DC adapter for portable diagnostic equipment requiring low leakage and high reliability. IC Role / Device Role / Timing Role: Output rectifier in flyback converter meeting IEC 60601-1 creepage/clearance and leakage current limits. Use Value: 300µA max IR at 25°C ensures compliance with <100µA patient-leakage thresholds when derated at elevated temperatures. |
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-15BQ050 | Same 50V VRRM, 15A IF, TO-220AC package; no AEC-Q101 qualification; RθJC = 2.0°C/W. | Not suitable for automotive under-hood use; acceptable for commercial-industrial SMPS where qualification not mandated. | Select VS-15BQ050 only when AEC-Q101 is unnecessary and thermal margin allows higher RθJC. |
| ON Semiconductor MBR1550CTG | Identical electrical specs and TO-220AB package; AEC-Q101 qualified; same marking "MBR1550CT" but G-suffix denotes green packaging (halogen-free). | No functional difference; G-suffix aligns with IEC 61249-2-21 halogen-free requirement where mandated. | MBR1550CTG is a drop-in alternative if halogen-free compliance is required; otherwise MBR1550CT remains preferred for cost-sensitive AEC-Q101 designs. |
Compared with VS-15BQ050 and MBR1550CTG, the MBR1550CT offers optimal balance of automotive qualification, thermal performance (1.5°C/W), and cost - making it the default choice for AEC-Q101-compliant 48V systems where thermal headroom is constrained.
Availability
MBR1550CT is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS outputs, and medical power adapters requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for MBR1550CT 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and computing markets since 1979.
The MBR15xxCT series targets high-reliability power conversion in harsh environments, with design focus on low-loss Schottky rectification for 12V–48V automotive subsystems and high-density industrial PSUs.
FAQ
What is the maximum junction temperature rating for MBR1550CT?
The MBR1550CT has a maximum junction temperature (TJ) of +150°C, validated across its full operating range. This rating enables reliable operation in under-hood automotive locations and sealed industrial enclosures. Derating curves in the official datasheet confirm usable current capacity down to 125°C ambient with appropriate heatsinking. The MBR1550CT maintains specified electrical parameters within this thermal envelope.
Is MBR1550CT pin-compatible with other parts in the MBR15xxCT family?
Yes - all MBR15xxCT variants (e.g., MBR1535CT, MBR1560CT, MBR15100CT) share identical TO-220AB mechanical outline, pin assignment (Anode1–Cathode–Anode2), and mounting dimensions. The MBR1550CT can replace any other voltage-rated variant in the same family without PCB changes, provided the 50V VRRM meets system blocking requirements.
Does MBR1550CT require a heatsink in standard operation?
Yes - the MBR1550CT requires external heatsinking to sustain 15A continuous current. With RθJC = 1.5°C/W and RθCA ≈ 10°C/W (typical unheatsinked), junction temperature would exceed 150°C at full load. A minimum 25 cm² aluminum heatsink (0.5mm thick) is recommended for 15A at 25°C ambient. The MBR1550CT's insulated tab allows direct mounting to grounded metal chassis with proper isolation.
What does the "H" suffix in MBR1550CTH signify?
The "H" suffix in MBR1550CTH indicates full AEC-Q101 qualification per Rev D requirements, including HTOL, temperature cycling, and HAST testing. This distinguishes it from non-H variants like MBR1550CT (standard grade). Both share identical electrical specs and package, but only MBR1550CTH carries automotive qualification documentation and lot-level traceability required for Tier 1 automotive BOMs.
How does the guard ring feature improve reliability in MBR1550CT?
The guard ring in MBR1550CT suppresses edge electric field concentration during voltage transients, preventing localized avalanche breakdown at the die periphery. This extends device lifetime under repetitive line surges and ESD events in automotive 12V/48V networks. Test data shows >2× improvement in surge endurance versus non-guard-ring Schottkys - a key reliability factor confirmed in AEC-Q101 stress validation for the MBR1550CT.
MBR1550CTH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 7.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
MBR1550CTH FAQ
1.How can I place an order for MBR1550CTH through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR1550CTH 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 MBR1550CTH reliable?
The price and inventory of MBR1550CTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1550CTH is usually 5 days.
3.What payment methods are accepted for MBR1550CTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1550CTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR1550CTH?
MBR1550CTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR1550CTH 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 MBR1550CTH?
For technical support, including MBR1550CTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1550CTH requirements.
6.How does Aetrix verify that MBR1550CTH is sourced from the original manufacturer or authorized distributors?
All MBR1550CTH 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 MBR1550CTH meets industry standards.
7.What is the process for return or replacement of MBR1550CTH?
All MBR1550CTH units undergo pre-shipment inspection (PSI). If there is an issue with MBR1550CTH, 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 MBR1550CTH part is unused and in its original packaging.
Return procedure for MBR1550CTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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