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Diodes Incorporated MBR1070CT
- Part No.:
- MBR1070CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR1070CT.pdf
- Description:
- DIODE ARR SCHOTT 70V 10A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:5,224
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Product details
Overview
MBR1070CT from Diodes Incorporated is a 10A, 70V dual common-cathode Schottky barrier rectifier in TO-220AB package, featuring low forward voltage drop (0.75V @ 5A, 125°C), high surge capability (120A), and junction-to-case thermal resistance of 3.0 K/W. It is used in low-voltage, high-frequency inverters, freewheeling diode circuits, and polarity protection for DC power supplies.
For engineers reviewing the MBR1070CT datasheet, MBR1070CT pinout, MBR1070CT application, or MBR1070CT equivalent, key selection criteria include peak repetitive reverse voltage (70 V), average rectified output current (10 A at TC = 100°C), forward voltage drop under thermal stress, surge current rating, and TO-220AB thermal mounting compatibility.
Technical Context
The MBR1070CT integrates two Schottky die in a single TO-220AB case with common cathode configuration, enabling dual-channel rectification without external parallel diodes. Its guard ring die construction provides transient protection, and the bright tin-plated terminals ensure reliable solderability per MIL-STD-202.
Designed for high-efficiency operation, it delivers low conduction loss (VFM ≤ 0.85 V @ 5A, 25°C) and supports fast switching in 60Hz–kHz-range power conversion. Junction capacitance is 300 pF at 4 V reverse bias and 1 MHz, limiting high-frequency noise coupling in sensitive analog rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - Maximum non-repetitive reverse voltage before breakdown; sets safe operating limit in 48 V DC bus protection. |
| IO (TC = 100°C) | 10 A - Continuous average forward current when case temperature is held at 100°C; defines heatsink sizing requirement. |
| VFM @ 5A, 125°C | 0.75 V - Forward voltage under worst-case thermal condition; determines conduction loss (3.75 W per diode at 5A). |
| IFSM (8.3 ms) | 120 A - Non-repetitive surge current handling; enables survival during inrush or short-circuit events in SMPS outputs. |
| RJC | 3.0 K/W - Thermal resistance from junction to case; requires ≥12 cm² 1 mm thick aluminum heatsink for 10 A continuous operation at TA = 50°C. |
| Cj @ 4 V, 1 MHz | 300 pF - Junction capacitance under reverse bias; impacts EMI filtering design and switching node ringing in buck converters. |
Pinout & Package
Package: TO-220AB - Molded plastic case, UL 94V-0 rated, with three leads mounted on heatsink-compatible tab. Polarity marked on body; terminals are bright tin-plated for MIL-STD-202-compliant soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | First anode connection | Accepts input from first AC/DC leg or switching node; electrically isolated from Pin 2 and Pin 3. |
| Pin 2 (Cathode) | Common cathode node | Shared output terminal for both diodes; must be routed with low-inductance path to minimize switching noise. |
| Pin 3 (Anode 2) | Second anode connection | Accepts input from second AC/DC leg or complementary switch; symmetrical to Pin 1 in layout and thermal path. |
Key Features
| Feature | Design Value |
|---|---|
| Schottky barrier + guard ring die | Enables transient immunity without external TVS while maintaining <1 V forward drop across full temperature range. |
| Low VFM at high temperature | 0.75 V @ 5A, 125°C ensures stable efficiency in enclosed industrial enclosures where ambient exceeds 70°C. |
| 120 A IFSM rating | Supports 2× overcurrent margin in 48 V telecom rectifiers during cold-start or capacitor charging surges. |
| TO-220AB thermal performance | 3.0 K/W RJC allows direct mounting to chassis or heatsink without insulating pads-reducing thermal interface resistance by ~1.2 K/W vs. insulated mounting. |
Applications
| AC/DC Adapter Output Rectification | DC Motor Freewheeling Protection |
|---|---|
Use Scenario: 24 V, 5 A offline adapter with synchronous rectification secondary side. IC Role / Device Role / Timing Role: Dual common-cathode Schottky rectifier replacing two discrete diodes to reduce board area and thermal mismatch. Use Value: 0.75 V forward drop at 125°C lowers total conduction loss by 1.8 W versus standard silicon diodes, improving adapter efficiency from 86% to 88.5%. | Use Scenario: 36 V brushed DC motor driver with H-bridge and back-EMF suppression. IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during PWM turn-off; shared cathode simplifies PCB routing. Use Value: 120 A surge rating withstands repeated 50 A motor stall currents; 300 pF Cj minimizes voltage overshoot during 10 kHz PWM commutation. |
| Polarity Protection in PoE PD | Redundant 48 V DC Power OR-ing |
Use Scenario: IEEE 802.3af/at Powered Device with reverse-voltage input safeguard. IC Role / Device Role / Timing Role: Input series protection diode preventing damage from miswired PSE connections. Use Value: 70 V VRRM exceeds PoE+ maximum open-circuit voltage (57 V), and 0.85 V VFM @ 25°C limits insertion loss to <4% at 1 A load. | Use Scenario: Dual-input 48 V telecom shelf with automatic source selection. IC Role / Device Role / Timing Role: Common-cathode OR-ing diode pair enabling seamless switchover between primary and backup supplies. Use Value: Matched VFM between channels (<±5 mV) ensures balanced current sharing; TO-220AB tab enables shared heatsink for both anodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MBR1070CT | Identical electrical specs (70 V, 10 A, 0.75 V @ 5A/125°C); same TO-220AB package but with matte tin finish. | No functional difference in freewheeling or OR-ing; minor solder wetting variance due to finish. | Select for dual-source supply chain continuity where Diodes Inc. lead times exceed 12 weeks. |
| ON Semiconductor MBR1070CTG | Same ratings and pinout; RoHS-compliant with halogen-free molding compound (Diodes version is halogen-containing). | Required for automotive-grade assemblies needing halogen-free compliance per JESD22-A111. | Choose when final product must meet IEC 61249-2-21 halogen-free certification. |
Compared with MBR1070CT, VS-MBR1070CT offers identical performance with alternate finish-driven solder process compatibility, while MBR1070CTG adds halogen-free qualification at no electrical trade-off-making it preferable for automotive or green-certified industrial systems.
Availability
MBR1070CT is available at Aetrix Electronics and suitable for AC/DC adapters, DC motor drives, PoE-powered devices, and redundant 48 V DC power systems requiring stable component supply and long-term manufacturability.
Supply support for MBR1070CT 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 centers across Asia and manufacturing in China, Taiwan, and the US.
The MBR10xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for efficiency-critical 24–48 V power conversion in industrial, telecom, and consumer power supplies.
FAQ
Is MBR1070CT suitable for surface-mount assembly?
No. The MBR1070CT uses a through-hole TO-220AB package with a metal tab designed for mechanical mounting and heatsinking. It is not compatible with reflow or wave soldering processes intended for SMT components. Manual or selective soldering is required for assembly, and the tab must be thermally coupled to a heatsink or chassis plane.
What is the maximum recommended case temperature for continuous 10 A operation?
The datasheet specifies IO = 10 A at TC = 100°C. Exceeding this case temperature risks thermal runaway due to positive temperature coefficient of forward voltage. For reliable 10 A continuous operation, maintain TC ≤ 100°C using a heatsink sized per RJC = 3.0 K/W and ambient derating curves in Figure 1 of DS30028.
Does MBR1070CT have avalanche rating or repetitive surge capability?
No. The MBR1070CT is not rated for repetitive avalanche energy. Its 120 A IFSM rating applies only to single 8.3 ms half-sine surges per JEDEC. Repeated surges exceeding 10 A RMS require external clamping or current limiting, as Schottky junctions lack the ruggedness of silicon PN rectifiers under sustained overcurrent.
Can Pin 1 and Pin 3 be paralleled to increase current capacity?
No. Pin 1 and Pin 3 are separate anodes tied to independent Schottky dies sharing only the cathode (Pin 2). Paralleling them electrically would short the two anodes together, violating internal structure and causing immediate failure. Each anode must serve distinct circuit paths, such as dual-phase rectification or independent OR-ing inputs.
MBR1070CT 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):
- 70 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 70 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
MBR1070CT FAQ
1.How can I place an order for MBR1070CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR1070CT 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 MBR1070CT reliable?
The price and inventory of MBR1070CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1070CT is usually 5 days.
3.What payment methods are accepted for MBR1070CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1070CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR1070CT?
MBR1070CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR1070CT 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 MBR1070CT?
For technical support, including MBR1070CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1070CT requirements.
6.How does Aetrix verify that MBR1070CT is sourced from the original manufacturer or authorized distributors?
All MBR1070CT 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 MBR1070CT meets industry standards.
7.What is the process for return or replacement of MBR1070CT?
All MBR1070CT units undergo pre-shipment inspection (PSI). If there is an issue with MBR1070CT, 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 MBR1070CT part is unused and in its original packaging.
Return procedure for MBR1070CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR1070CT Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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