Vishay General Semiconductor - Diodes Division VS-MBRB3030CTLL-M3
- Part No.:
- VS-MBRB3030CTLL-M3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-MBRB3030CTLL-M3.pdf
- Description:
- DIODE ARR SCHOTT 30V 15A TO263AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
VS-MBRB3030CTLL-M3 from Vishay Semiconductors is a high-performance dual common-cathode Schottky rectifier in D2PAK (TO-263AB) package, rated for 30 V reverse voltage and 2 × 15 A average forward current per leg, with 0.34 V forward voltage at 15 A and 125 °C junction temperature. It serves as a low-loss freewheeling or output rectifier in DC/DC converters and reverse battery protection circuits.
For engineers reviewing the VS-MBRB3030CTLL-M3 datasheet, VS-MBRB3030CTLL-M3 pinout, VS-MBRB3030CTLL-M3 application, or VS-MBRB3030CTLL-M3 equivalent, key selection criteria include its 150 °C TJ rating, center-tap common-cathode configuration, low VF slope resistance (6.76 mΩ), high dV/dt capability (10,000 V/μs), and MSL Level 1 moisture sensitivity.
Technical Context
This device integrates two independent Schottky diodes sharing a common cathode terminal in a single D2PAK thermally enhanced package, enabling compact dual-leg rectification without external interconnection. Its proprietary barrier technology ensures stable operation up to 150 °C junction temperature while maintaining low leakage (183 mA at 125 °C) and low forward voltage drop.
The device supports high-frequency switching applications due to low junction capacitance (2840 pF at 5 V) and minimal series inductance (8.0 nH), and is qualified per JEDEC JESD47 with MSL Level 1 reflow compatibility (245 °C peak). Thermal resistance is 2.0 °C/W per leg (junction-to-case), enabling efficient heatsinking in power-dense designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 30 V maximum DC reverse voltage - defines safe blocking capability in 24 V system rails and automotive battery protection. |
| IF(AV) | 2 × 15 A average forward current per leg - supports 30 A total continuous conduction with thermal derating above TC = 121 °C. |
| VF @ 15 A, 125 °C | 0.34 V - enables <1.0 W conduction loss per leg at 15 A, critical for high-efficiency 12–24 V DC/DC outputs. |
| EAS | 13 mJ avalanche energy per leg - provides robust unclamped inductive switching survival in flyback/freewheeling topologies. |
| RthJC | 2.0 °C/W per leg - allows direct mounting to heatsink with predictable thermal rise under full load. |
| dV/dt | 10,000 V/μs - prevents false turn-on during fast transient voltage edges in synchronous rectifier or snubberless designs. |
| CT @ 5 V | 2840 pF - limits capacitive switching loss and EMI generation in >100 kHz SMPS applications. |
Pinout & Package
D2PAK (TO-263AB) surface-mount package with exposed thermal pad (pin 3), 3-terminal layout optimized for high-current PCB routing and thermal dissipation. Dimensions: 10.67 mm × 9.65 mm × 4.83 mm (max), weight 2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input terminal for first Schottky diode leg; connects to switching node or input rail in dual-path rectification. |
| 2 | Anode 2 | Input terminal for second Schottky diode leg; enables independent control or parallel operation of two paths. |
| 3 | Common Cathode | Shared output node; must be routed to low-inductance ground or output capacitor return to minimize noise and voltage overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| Center-tap common-cathode configuration | Enables dual-leg rectification in single footprint-reduces board area vs. discrete diode pairs and eliminates interconnect inductance. |
| 150 °C maximum junction temperature | Supports operation in sealed enclosures or high-ambient environments (e.g., automotive under-hood, industrial power supplies) without forced air cooling. |
| Low forward slope resistance (6.76 mΩ) | Ensures linear, predictable conduction loss across load range-critical for accurate thermal modeling and efficiency optimization. |
| Guard ring structure | Improves edge breakdown immunity and long-term reliability under repetitive surge stress (IFSM = 1100 A per leg). |
| Halogen-free, RoHS-compliant, Pb-free termination (-M3) | Meets global environmental compliance requirements for industrial and automotive end equipment without compromising solderability or thermal cycling performance. |
Applications
| Switching Power Supplies | Automotive Reverse Battery Protection |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 12 V/24 V isolated DC/DC converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Low-VF Schottky rectifier replacing MOSFETs in cost-sensitive designs where gate drive complexity must be avoided. Use Value: Reduces conduction loss by >30 % vs. standard silicon diodes at 15 A, improving full-load efficiency by 1.2–1.8 %. | Use Scenario: Polarity protection circuit on vehicle battery input to prevent damage during jump-start misconnection. IC Role / Device Role / Timing Role: Bidirectional blocking diode placed between battery and load, conducting only during correct polarity. Use Value: Withstands 150 °C ambient and handles 1100 A surge (e.g., alternator dump), eliminating need for external fusing in Class-D audio or ECU modules. |
| Freewheeling Diodes in Motor Drives | DC/DC Converter Output Rectification |
Use Scenario: Freewheel path for brushed DC motor H-bridge drivers in industrial automation systems. IC Role / Device Role / Timing Role: Fast-recovery path for inductive kickback during PWM off-time, minimizing voltage spikes and MOSFET stress. Use Value: 10,000 V/μs dV/dt rating prevents spurious turn-on during rapid voltage transitions, reducing snubber component count. | Use Scenario: Output rectification in non-isolated buck converters powering FPGA or ASIC core rails (e.g., 1.2 V @ 20 A). IC Role / Device Role / Timing Role: High-current, low-VF rectifier operating continuously at 125–150 °C junction temperature. Use Value: 0.34 V VF at 15 A/125 °C delivers <0.5 W per leg loss-enabling compact thermal design without heatsink in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS30L30CGY | Same 30 V/2×15 A rating, but TO-220AC package; higher RthJC (3.5 °C/W); VF = 0.42 V @ 15 A/125 °C. | Requires larger PCB area and heatsink; less suitable for high-density SMT layouts. | Select when through-hole assembly or legacy footprint compatibility is required. |
| ON Semiconductor NTS4101PT1G | Single 30 V/3 A Schottky; not dual-leg; VF = 0.45 V @ 3 A/125 °C; SOT-223 package. | Only suitable for low-current auxiliary rails-not a functional replacement for main power paths. | Use only for signal-level or bias supply rectification, not primary power conversion. |
Compared with STPS30L30CGY and NTS4101PT1G, the VS-MBRB3030CTLL-M3 uniquely combines dual-leg SMT integration, 2.0 °C/W thermal resistance, and 0.34 V VF at 15 A/125 °C-making it optimal for high-power density, thermally constrained 24 V systems requiring single-package dual rectification.
Availability
VS-MBRB3030CTLL-M3 is available at Aetrix Electronics and suitable for switching power supplies, automotive reverse battery protection, freewheeling diodes in motor drives, and DC/DC converter output rectification requiring stable component supply and long-term production continuity.
Supply support for VS-MBRB3030CTLL-M3 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for power, signal, and sensing applications.
The MBRB3030 series is part of Vishay's high-current Schottky rectifier product line, engineered for low-loss, high-temperature operation in automotive, industrial, and computing power systems where efficiency and thermal robustness are critical.
FAQ
What is the maximum junction temperature rating for the VS-MBRB3030CTLL-M3?
The VS-MBRB3030CTLL-M3 is rated for a maximum junction temperature (TJ) of +150 °C. This specification is validated per JEDEC JESD47 qualification and enables reliable operation in high-ambient environments such as automotive under-hood applications or sealed industrial power supplies without active cooling. The device maintains specified VF and IRM performance up to this limit.
Does the VS-MBRB3030CTLL-M3 have a center-tap configuration, and how is it implemented?
Yes, the VS-MBRB3030CTLL-M3 uses a center-tap configuration realized as a common-cathode dual-diode structure: pins 1 and 2 are independent anodes, and pin 3 is the shared cathode. This arrangement allows two separate forward paths to converge at one output node-ideal for dual-phase rectification or redundant freewheeling paths without external wiring.
What is the forward voltage drop of the VS-MBRB3030CTLL-M3 at 15 A and 125 °C?
The forward voltage drop (VF) of the VS-MBRB3030CTLL-M3 is 0.34 V per leg at 15 A and TJ = 125 °C, as specified in the "ELECTRICAL SPECIFICATIONS" table. This low VF directly reduces conduction losses to ~5.1 W total (2 × 15 A × 0.34 V) under full dual-leg load, supporting high-efficiency power conversion in thermally demanding conditions.
Is the VS-MBRB3030CTLL-M3 suitable for automotive reverse battery protection?
Yes, the VS-MBRB3030CTLL-M3 is widely used for automotive reverse battery protection due to its 30 V VR rating (compatible with 24 V systems), 150 °C TJ capability, 1100 A non-repetitive surge rating (IFSM), and robust guard ring construction. Its D2PAK package provides mechanical stability and thermal performance needed in engine compartment environments.
What does the "-M3" suffix indicate in VS-MBRB3030CTLL-M3?
The "-M3" suffix denotes that the VS-MBRB3030CTLL-M3 is halogen-free, RoHS-compliant, and features lead (Pb)-free terminations. It meets JEDEC J-STD-020 MSL Level 1 moisture sensitivity requirements and is qualified for reflow soldering with a peak temperature of 245 °C, ensuring compatibility with modern lead-free assembly processes.
VS-MBRB3030CTLL-M3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 470 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 mA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-MBRB3030CTLL-M3 FAQ
1.How can I place an order for VS-MBRB3030CTLL-M3 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-MBRB3030CTLL-M3 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 VS-MBRB3030CTLL-M3 reliable?
The price and inventory of VS-MBRB3030CTLL-M3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-MBRB3030CTLL-M3 is usually 5 days.
3.What payment methods are accepted for VS-MBRB3030CTLL-M3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-MBRB3030CTLL-M3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-MBRB3030CTLL-M3?
VS-MBRB3030CTLL-M3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-MBRB3030CTLL-M3 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 VS-MBRB3030CTLL-M3?
For technical support, including VS-MBRB3030CTLL-M3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-MBRB3030CTLL-M3 requirements.
6.How does Aetrix verify that VS-MBRB3030CTLL-M3 is sourced from the original manufacturer or authorized distributors?
All VS-MBRB3030CTLL-M3 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 VS-MBRB3030CTLL-M3 meets industry standards.
7.What is the process for return or replacement of VS-MBRB3030CTLL-M3?
All VS-MBRB3030CTLL-M3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-MBRB3030CTLL-M3, 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 VS-MBRB3030CTLL-M3 part is unused and in its original packaging.
Return procedure for VS-MBRB3030CTLL-M3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-MBRB3030CTLL-M3 Tags

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