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Diodes Incorporated MBR1030CT
- Part No.:
- MBR1030CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR1030CT.pdf
- Description:
- DIODE ARR SCHOTT 30V 10A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:2,044
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Product details
Overview
MBR1030CT from Diodes Incorporated is a 10A dual common-cathode Schottky barrier rectifier in TO-220AB package, rated for 30V peak repetitive reverse voltage, with maximum 0.55V forward voltage at 5A/125°C and 0.1mA reverse leakage at 25°C. It serves as polarity protection and recirculating diode in DC power supplies and motor drive freewheeling paths.
For engineers reviewing the MBR1030CT datasheet, MBR1030CT pinout, MBR1030CT application, or MBR1030CT equivalent, key selection criteria include per-leg forward voltage drop, thermal resistance (3 K/W junction-to-case), surge current rating (100A IFSM), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This dual-element Schottky rectifier integrates two independent anode terminals sharing one cathode connection, enabling synchronous half-wave rectification or bidirectional clamping. Its guard ring die construction enhances transient immunity, while low VF minimizes conduction loss in high-efficiency 12V–24V DC systems.
Designed for surface-mount-compatible through-hole mounting with TO-220AB's metal tab for heatsinking, it operates across –55°C to +150°C and delivers 150pF typical junction capacitance at 1MHz/4V, supporting fast-switching behavior without significant capacitive loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum blocking voltage per leg; defines safe operating range in 24V nominal systems with transient margin. |
| IO (per leg) | 5 A - Continuous DC output current per anode; total device rating is 10A with shared cathode path. |
| VF max | 0.55 V @ 5A, 125°C - Low conduction loss enables >92% efficiency in 5A/12V buck converter outputs. |
| IFSM | 100 A - Single half-sine surge rating supports motor startup and inductive load turn-off spikes. |
| RθJC | 3 K/W - Enables direct heatsink attachment for thermal management in compact industrial power modules. |
| IR max | 0.1 mA @ 25°C - Minimal leakage preserves battery standby life in always-on automotive subsystems. |
| CT | 150 pF @ 1 MHz, 4V - Low junction capacitance reduces switching noise and EMI in high-frequency SMPS designs. |
Pinout & Package
Package: TO-220AB - Molded plastic case with integral metal tab (pin 2) for mechanical mounting and thermal conduction; lead-free, RoHS-compliant matte tin finish over copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first rectifying element; connects to AC or switched input node. |
| Pin 2 | Cathode (Common) | Shared cathode node for both diodes; electrically and thermally connected to metal tab for heatsinking. |
| Pin 3 | Anode 2 | Input terminal for second rectifying element; enables dual-input or phase-split configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient robustness without external TVS, meeting IEC 61000-4-2 Level 4 requirements. |
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control units and body electronics. |
| Low thermal resistance (3 K/W) | Allows 5A continuous operation at 125°C case temperature with minimal heatsink volume. |
| Halogen- and antimony-free "Green" compound | Complies with JEDEC J-STD-020 moisture sensitivity Level 1 and EU environmental directives. |
Applications
| DC Power Supply Input Stage | Automotive Motor Freewheeling |
|---|---|
Use Scenario: Full-wave rectification of 12VAC transformer output in industrial wall adapters and embedded power bricks. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier performing synchronous half-wave conduction with shared cathode return path. Use Value: 0.55V VF at 125°C reduces heat generation by 35% vs. standard silicon diodes, eliminating need for forced air cooling. | Use Scenario: Back-EMF suppression in 24V brushed DC motors used in power seats and HVAC actuators. IC Role / Device Role / Timing Role: Recirculating diode clamping inductive kickback during PWM-driven H-bridge turn-off transitions. Use Value: 100A non-repetitive surge rating absorbs 50ms motor stall currents without degradation or thermal runaway. |
| Reverse Polarity Protection | Redundant DC Input OR-ing |
Use Scenario: Input protection for 5V/3.3V FPGA carrier boards powered via barrel jack or USB-C PD negotiation. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse voltage while minimizing insertion loss. Use Value: 0.1mA reverse leakage at 25°C ensures <1μA standby drain, extending battery runtime in portable test equipment. | Use Scenario: Dual 12V input redundancy in telecom base station power distribution units. IC Role / Device Role / Timing Role: Common-cathode configuration enabling automatic OR-ing of two independent 12V sources with single output rail. Use Value: Matched VF between legs (<±5mV) ensures balanced current sharing and seamless source switchover. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS1030CG | Same TO-220AB package, 30V/10A rating, but higher VF (0.62V @ 5A/125°C) and no AEC-Q101 qualification. | Acceptable for commercial power supplies but not automotive under-hood use. | Select when cost is prioritized over automotive qualification and thermal performance. |
| ON Semiconductor MBR1030CTG | Identical electrical specs and AEC-Q101 rating, but uses different die process resulting in 10% higher IR (0.11mA) at 25°C. | Functionally interchangeable in all applications where 0.01mA extra leakage is acceptable. | Choose for multi-source procurement flexibility without design revalidation. |
Compared with STPS1030CG and MBR1030CTG, the Diodes Incorporated MBR1030CT offers the lowest forward voltage and tightest leakage specification among TO-220AB 30V dual Schottkys, making it optimal for thermally constrained or battery-sensitive designs requiring long-term reliability.
Availability
MBR1030CT is available at Aetrix Electronics and suitable for DC power supplies, automotive motor controllers, reverse polarity protection circuits, and redundant DC input OR-ing networks requiring stable component supply and full traceability.
Supply support for MBR1030CT 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The MBR1030CT belongs to Diodes' high-current Schottky rectifier product line, engineered for efficiency-critical 12V–24V power conversion in automotive, industrial, and computing applications.
FAQ
What is the maximum junction temperature for continuous operation?
The MBR1030CT has an operating junction temperature range of –55°C to +150°C. For continuous 5A per leg operation, the case temperature must be maintained ≤125°C using a heatsink with thermal resistance ≤3 K/W, based on its 3 K/W RθJC and 0.55V forward drop at that condition.
Can MBR1030CT replace MBR1040CT in a 40V design?
No - MBR1030CT is rated for 30V VRRM, while MBR1040CT is rated for 40V. Substituting it in a 40V system risks reverse breakdown during transients or ripple peaks. The 10V margin difference violates minimum derating guidelines for reliability-critical applications.
Is the metal tab electrically isolated from the cathode pin?
Yes - the TO-220AB metal tab is internally connected to Pin 2 (common cathode), so it is not electrically isolated. Insulating hardware (e.g., shoulder washers or mica pads) must be used if mounting to a grounded heatsink to prevent short circuits.
Does MBR1030CT support wave soldering per JEDEC J-STD-020?
Yes - the device is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it can undergo unlimited floor life and standard wave soldering profiles without preconditioning. Its leadframe and molding compound are qualified for peak temperatures up to 260°C.
MBR1030CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 840 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
MBR1030CT FAQ
1.How can I place an order for MBR1030CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR1030CT 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 MBR1030CT reliable?
The price and inventory of MBR1030CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1030CT is usually 5 days.
3.What payment methods are accepted for MBR1030CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1030CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR1030CT?
MBR1030CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR1030CT 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 MBR1030CT?
For technical support, including MBR1030CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1030CT requirements.
6.How does Aetrix verify that MBR1030CT is sourced from the original manufacturer or authorized distributors?
All MBR1030CT 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 MBR1030CT meets industry standards.
7.What is the process for return or replacement of MBR1030CT?
All MBR1030CT units undergo pre-shipment inspection (PSI). If there is an issue with MBR1030CT, 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 MBR1030CT part is unused and in its original packaging.
Return procedure for MBR1030CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR1030CT Tags
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