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onsemi MBR2550CT
- Part No.:
- MBR2550CT
- Manufacturer:
- onsemi
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR2550CT.pdf
- Description:
- DIODE ARR SCHOT 50V 12.5A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:81
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Product details
Overview
MBR2550CT from Diodes Incorporated is a 50V, 30A dual common-cathode Schottky barrier rectifier in TO-220AB package, featuring 0.75V max forward voltage at 30A/25°C and 1.0mA max reverse leakage at rated DC blocking voltage, used for polarity protection and freewheeling in low-voltage DC-DC converters and industrial power supplies.
For engineers reviewing the MBR2550CT datasheet, MBR2550CT pinout, MBR2550CT application, or MBR2550CT equivalent, key selection criteria include verified 50V VRRM rating, 30A average output current capability at TC=130°C, thermal resistance of 1.5°C/W (junction-to-case), and TO-220AB mechanical compatibility with standard heatsink mounting.
Technical Context
This dual-diode Schottky rectifier integrates two independent anode terminals sharing a common cathode, enabling bidirectional freewheeling or dual-rail polarity protection in single-package layout. Its guard ring die construction provides transient overvoltage immunity, while low forward voltage drop minimizes conduction loss in high-current switching paths.
Designed for operation up to +175°C junction temperature, it supports derated current handling under elevated thermal conditions and exhibits 750pF typical total capacitance per element at 1MHz/4V reverse bias-critical for high-frequency snubberless flyback and synchronous rectification designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in polarity protection and clamp circuits. |
| IO (TC=130°C) | 30 A - Average rectified current at case temperature 130°C; determines continuous power-handling capacity with heatsinking. |
| VF (IF=30A, TC=25°C) | 0.75 V - Forward voltage drop at full rated current; directly impacts conduction loss and thermal rise in high-efficiency SMPS. |
| IRM (VR=50V, TC=25°C) | 1.0 mA - Peak reverse leakage current at rated blocking voltage; affects standby power and voltage hold-up in low-power systems. |
| RθJC | 1.5 °C/W - Junction-to-case thermal resistance; enables accurate heatsink sizing for thermal management in enclosed industrial enclosures. |
| IFSM (8.3ms) | 150 A - Non-repetitive surge current rating; supports inrush current tolerance during cold-start of motor drives and UPS systems. |
| CT (1MHz, VR=4V) | 750 pF - Total capacitance per diode element; influences switching speed and EMI behavior in >100kHz DC-DC topologies. |
Pinout & Package
TO-220AB package: molded plastic case (UL 94V-0), 2.24g weight, lead-free bright tin terminals, polarity marked on body. Mounting tab (Pin 2) is electrically connected to cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first diode path; connects to positive rail or switch node in freewheeling configuration. |
| Pin 2 | Cathode (Common) | Shared cathode node; electrically tied to metal tab; requires insulated mounting when referenced to non-ground potentials. |
| Pin 3 | Anode 2 | Input terminal for second diode path; enables dual-rail or redundant protection without discrete parts. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Enhances transient voltage immunity per IEC 61000-4-5; eliminates need for external TVS in moderate-surge environments. |
| Low VF at high current | 0.75V @ 30A/25°C reduces power dissipation by ~2.3W vs. silicon rectifiers, lowering heatsink requirements in space-constrained designs. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-enables use in under-hood power modules. |
| Halogen & antimony free | Meets <900ppm Br/Cl (<1500ppm total) and <1000ppm Sb; satisfies IPC-1752a Tier 2 reporting and EU green compliance mandates. |
Applications
| DC-DC Converter Freewheeling | Polarity Protection |
|---|---|
Use Scenario: Used as synchronous rectifier or freewheeling diode in 12V–48V isolated DC-DC converters operating at 200–500kHz. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing low-loss return path during high-side switch off-time. Use Value: 0.75V VF minimizes conduction loss, improving efficiency by ≥1.2% at 25A load versus standard silicon diodes. | Use Scenario: Installed across input terminals of industrial PLC I/O modules to prevent damage from reversed DC supply connections. IC Role / Device Role / Timing Role: Common-cathode dual diode configured as OR-ing device with back-to-back anodes for bidirectional reverse-polarity blocking. Use Value: 50V VRRM and 150A IFSM withstand accidental 24V reverse connection with no latch-up or degradation. |
| Motor Drive Flyback Clamping | Redundant Power Supply OR-ing |
Use Scenario: Mounted across brushed DC motor terminals in HVAC blower control to suppress inductive kickback during PWM commutation. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive energy into supply rail during MOSFET turn-off transitions. Use Value: 750pF capacitance ensures fast recovery without oscillation; 1.5°C/W RθJC enables stable operation at 85°C ambient with minimal heatsink. | Use Scenario: Deployed in telecom shelf power distribution to OR two independent -48V feeds with automatic failover. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent anode routing to separate inputs while sharing cathode output bus. Use Value: Matched VF between elements (<±5mV) ensures balanced current sharing and prevents hot-spotting during parallel operation. |
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-30CPH05 | 50V VRRM, 30A IO, 0.72V VF @ 30A, TO-247AC package | Larger footprint, higher thermal mass; better suited for forced-air cooled systems | Select when higher surge margin or lower VF is required and PCB real estate permits TO-247 layout. |
| ON Semiconductor MBR3050CT | 50V VRRM, 30A IO, 0.80V VF @ 30A, same TO-220AB package | Higher VF increases conduction loss by ~0.15W at 30A; identical pinout and mounting | Acceptable for cost-sensitive designs where 0.05V VF penalty is tolerable and existing TO-220AB footprint must be retained. |
Compared with VS-30CPH05 and MBR3050CT, MBR2550CT offers optimal balance of low VF (0.75V), TO-220AB compatibility, and AEC-Q101 qualification-making it preferred for thermally constrained automotive and industrial power modules requiring proven reliability.
Availability
MBR2550CT is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, polarity protection, and motor drive flyback clamping requiring stable component supply and long-term production continuity.
Supply support for MBR2550CT 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 MBR25xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for low-voltage, high-efficiency power conversion in commercial and automotive applications demanding robust surge capability and thermal stability.
FAQ
Is MBR2550CT RoHS compliant and halogen-free?
Yes. MBR2550CT features a lead-free finish compliant with EU Directive 2011/65/EU (RoHS 2), and is certified halogen- and antimony-free per Diodes' "Green" definition: <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony compounds.
What is the maximum junction temperature and how does it affect derating?
The absolute maximum junction temperature is +175°C. At case temperature TC = +130°C, the device delivers its full 30A average current rating. Above this, current must be linearly derated to zero at +175°C, per Figure 1 in DS31036 Rev. 7–2.
Can MBR2550CT be used in place of MBR2545CT or MBR2560CT?
Yes, with electrical trade-offs: MBR2550CT replaces MBR2545CT (45V) with higher blocking margin but slightly higher VF; it replaces MBR2560CT (60V) with lower VRRM but lower IR (1.0mA vs. 1.0mA at 60V). Pinout and package are identical across all three.
How is the common cathode configured electrically in TO-220AB?
In MBR2550CT, Pin 2 (the metal tab) is the common cathode and is internally connected to both diode cathodes. Pins 1 and 3 are independent anodes. The tab must be electrically isolated from chassis ground unless the cathode reference is system ground.
MBR2550CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- 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):
- 12.5A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 12.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 50 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
MBR2550CT FAQ
1.How can I place an order for MBR2550CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR2550CT 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 MBR2550CT reliable?
The price and inventory of MBR2550CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR2550CT is usually 5 days.
3.What payment methods are accepted for MBR2550CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR2550CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR2550CT?
MBR2550CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR2550CT 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 MBR2550CT?
For technical support, including MBR2550CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR2550CT requirements.
6.How does Aetrix verify that MBR2550CT is sourced from the original manufacturer or authorized distributors?
All MBR2550CT 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 MBR2550CT meets industry standards.
7.What is the process for return or replacement of MBR2550CT?
All MBR2550CT units undergo pre-shipment inspection (PSI). If there is an issue with MBR2550CT, 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 MBR2550CT part is unused and in its original packaging.
Return procedure for MBR2550CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR2550CT Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
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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