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Taiwan Semiconductor Corporation MBR30L120CT
- Part No.:
- MBR30L120CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR30L120CT.pdf
- Description:
- DIODE ARR SCHOT 120V 30A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,837
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Product details
Overview
MBR30L120CT from Taiwan Semiconductor is a dual-die, TO-220AB-packaged low-forward-voltage Schottky barrier rectifier rated for 30 A average forward current and 120 V repetitive peak reverse voltage, with 200 A surge capability and 0.89 V max forward voltage at 30 A/25°C - used in high-efficiency DC/DC converters and SMPS secondary-side rectification.
For engineers reviewing the MBR30L120CT datasheet, MBR30L120CT pinout, MBR30L120CT application, or MBR30L120CT equivalent, key selection criteria include thermal resistance (3°C/W junction-to-case), AEC-Q101 qualification availability (MBR30L120CTH variant), and low VF performance across temperature (0.76 V typ @ 30 A/125°C).
Technical Context
This device integrates two independent Schottky diodes in a single TO-220AB package with common-cathode configuration, enabling dual-channel synchronous rectification or parallel operation. Its guard ring structure provides enhanced overvoltage ruggedness, and it supports high-frequency switching up to 20 kHz with minimal reverse recovery charge.
The MBR30L120CT operates across –55°C to +150°C junction temperature range and delivers stable reverse leakage (<25 mA @ 125°C) and fast dv/dt immunity (10,000 V/μs), making it suitable for compact, thermally constrained power stages where conduction loss minimization is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 30 A - supports continuous output current in 100–300 W SMPS designs without forced air cooling |
| VRRM | 120 V - enables use in 48 V and 54 V bus systems with 20% safety margin |
| VF @ 30A/25°C | 0.89 V max - reduces conduction loss by ~35% vs. standard silicon rectifiers at same current |
| IFSM (8.3 ms) | 200 A - withstands inrush surges during cold-start of industrial DC/DC modules |
| RθJC | 3°C/W - allows ≥20 W power dissipation with ≤60°C case-to-ambient rise using standard heatsink |
| IR @ 125°C | 25 mA max - limits standby power loss in high-temp environments like enclosed adapters |
| TJ Range | –55°C to +150°C - qualified for under-hood automotive auxiliary supplies and industrial control cabinets |
Pinout & Package
Package: TO-220AB, 3-terminal, common-cathode dual-diode configuration; matte tin-plated leads, UL 94V-0 molding compound, 1.90 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Tab / Pin 1 | Anode 1 | Primary high-current input path for first diode; electrically connected to metal tab for thermal conduction |
| Pin 2 | Cathode (common) | Shared cathode node for both diodes; must be routed to low-impedance ground/power return plane |
| Pin 3 | Anode 2 | Second independent anode terminal; enables dual-output or interleaved rectifier topologies |
Key Features
| Feature | Design Value |
|---|---|
| Low VF Schottky architecture | 0.76 V typ @ 30 A/125°C - maintains efficiency >92% in 12 V output converters at full load and elevated ambient |
| Guard ring overvoltage protection | Enables reliable operation at 100% VRRM with transient spikes up to 150 V without avalanche degradation |
| AEC-Q101 qualification option | MBR30L120CTH variant meets stress test requirements for automotive under-hood power modules |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in long-life industrial applications (>10 years storage or operation) |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing and end-of-life recycling |
Applications
| Server PSU Secondary Rectification | Industrial DC/DC Converter |
|---|---|
Use Scenario: High-density 12 V/30 A output stage in 1U server power supply with <15 mm height constraint. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing synchronous rectification for two parallel phases. Use Value: 0.89 V max VF reduces conduction loss by 4.5 W per diode vs. Si counterpart, lowering heatsink mass by 35%. | Use Scenario: 48 V to 12 V isolated DC/DC module in programmable logic controller (PLC) backplane. IC Role / Device Role / Timing Role: Output rectifier handling 30 A continuous load with 200 A surge tolerance during motor startup transients. Use Value: 3°C/W RθJC enables direct mounting to chassis without thermal interface pad, simplifying assembly and improving MTBF. |
| Automotive ADAS Power Module | Medical Grade AC/DC Adapter |
Use Scenario: 12 V auxiliary rail in camera ECU with ambient operating range –40°C to +105°C. IC Role / Device Role / Timing Role: AEC-Q101-qualified rectifier (MBR30L120CTH) in buck-derived offline supply. Use Value: Stable 25 mA IR max @ 125°C prevents thermal runaway during sustained high-load operation in sealed enclosures. | Use Scenario: Compact 65 W medical-grade adapter certified to IEC 60601-1 with double insulation. IC Role / Device Role / Timing Role: Primary secondary-side rectifier delivering low-noise 5 V/3 A USB-C PD output. Use Value: Guard ring design ensures no parametric shift after 10,000-cycle Hi-Pot testing at 3 kVAC, supporting compliance longevity. |
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-30CPH12 | Same TO-220AB package, 30 A/120 V rating, but VF = 0.92 V max @ 30 A/25°C; no AEC-Q101 option | Lacks automotive qualification; higher VF increases conduction loss by ~0.3 W at full load | Select when cost sensitivity outweighs AEC-Q101 need and thermal margin exceeds 10°C |
| ON Semiconductor MBR30H120CT | Identical electrical specs and TO-220AB footprint; AEC-Q101 qualified; VF = 0.88 V max @ 30 A/25°C | Direct functional replacement with same pinout and thermal profile; halogen-free and RoHS compliant | Preferred for new automotive designs requiring drop-in qualification continuity and same thermal design |
Compared with MBR30L120CT, the VS-30CPH12 offers lower cost but sacrifices automotive qualification and efficiency, while the MBR30H120CT matches all key parameters and adds verified AEC-Q101 compliance - making it the optimal upgrade path for safety-critical deployments.
Availability
MBR30L120CT is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and AC/DC adapters requiring stable component supply, consistent thermal performance, and long-term manufacturability.
Supply support for MBR30L120CT 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 discrete manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.
The MBR30L120CT belongs to TSC's low-VF Schottky rectifier product line, engineered specifically for high-efficiency secondary-side rectification in space-constrained, thermally demanding power conversion systems.
FAQ
What is the maximum junction temperature rating for the MBR30L120CT?
The MBR30L120CT has a maximum junction temperature (TJ MAX) of +150°C, with operational range from –55°C to +150°C. This rating is validated under steady-state conditions with proper heatsinking and accounts for thermal derating per the forward current derating curve in the datasheet. The MBR30L120CT maintains specified electrical performance within this range, including stable VF and IR characteristics.
Does the MBR30L120CT have AEC-Q101 qualification?
The base MBR30L120CT is not AEC-Q101 qualified; however, the MBR30L120CTH variant - distinguished by the "H" suffix in the ordering code - is fully AEC-Q101 qualified. Both share identical electrical and thermal specifications, but only MBR30L120CTH undergoes the full stress test sequence required for automotive under-hood applications.
What is the pin configuration and polarity marking for the MBR30L120CT?
The MBR30L120CT uses a TO-220AB package with three terminals: Pin 1 (Anode 1), Pin 2 (Common Cathode), and Pin 3 (Anode 2). Polarity is marked on the device body with a cathode band adjacent to Pin 2, and the metal tab is internally connected to Pin 1. Mounting torque must not exceed 0.56 N·m to avoid mechanical damage to the die attach.
How does the MBR30L120CT perform at elevated temperatures?
At 125°C junction temperature, the MBR30L120CT exhibits VF = 0.76 V typ (0.82 V max) at 30 A and IR = 25 mA max - demonstrating superior thermal stability versus standard silicon rectifiers. Its RθJC of 3°C/W ensures predictable thermal behavior in convection-cooled designs, and the guard ring maintains reverse voltage integrity even under thermal cycling stress.
What packaging and plating options are available for the MBR30L120CT?
The MBR30L120CT is supplied in TO-220AB packages packed 50 units per tube. Leads are matte tin-plated and solderable per J-STD-002, and the molding compound meets UL 94V-0 flammability rating. It complies with RoHS and IEC 61249-2-21 halogen-free requirements, with no lead-free exemptions applied.
MBR30L120CT 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):
- 120 V
- Current - Average Rectified (Io) (per Diode):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 20 µA @ 120 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
MBR30L120CT FAQ
1.How can I place an order for MBR30L120CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR30L120CT 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 MBR30L120CT reliable?
The price and inventory of MBR30L120CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR30L120CT is usually 5 days.
3.What payment methods are accepted for MBR30L120CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR30L120CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR30L120CT?
MBR30L120CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR30L120CT 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 MBR30L120CT?
For technical support, including MBR30L120CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR30L120CT requirements.
6.How does Aetrix verify that MBR30L120CT is sourced from the original manufacturer or authorized distributors?
All MBR30L120CT 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 MBR30L120CT meets industry standards.
7.What is the process for return or replacement of MBR30L120CT?
All MBR30L120CT units undergo pre-shipment inspection (PSI). If there is an issue with MBR30L120CT, 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 MBR30L120CT part is unused and in its original packaging.
Return procedure for MBR30L120CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR30L120CT Tags
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