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Diodes Incorporated SBR12U120P5-13
- Part No.:
- SBR12U120P5-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- PowerDI™ 5
- Datasheet:
-
SBR12U120P5-13.pdf
- Description:
- DIODE SBR 120V 12A POWERDI5
- Quantity:
- Payment:
- Shipping:
Inventory:9,535
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Product details
Overview
SBR12U120P5-13 from Diodes Incorporated is a 12A, 120V ultra-low VF super barrier rectifier in POWERDI®5 package, featuring 0.68V typical forward voltage at 12A/125°C and 150°C maximum junction temperature, optimized for high-efficiency DC/DC secondary-side rectification in server power supplies and telecom PSUs.
For engineers reviewing the SBR12U120P5-13 datasheet, SBR12U120P5-13 pinout, SBR12U120P5-13 application, or SBR12U120P5-13 equivalent, key selection criteria include forward voltage drop at elevated temperature, surge current rating (250A IFSM), thermal resistance (27°C/W), and RoHS-compliant green packaging with matte tin terminals.
Technical Context
This super barrier rectifier replaces conventional Schottky diodes in high-current, medium-voltage applications where low conduction loss and soft switching are critical. Its patented structure delivers lower VF than standard Schottkys while maintaining superior high-temperature leakage performance (0.25mA IR at 125°C, 120V).
Designed for surface-mount operation on polyimide PCBs with specified pad layout, it achieves 27°C/W junction-to-ambient thermal resistance and supports continuous operation up to +150°C junction temperature without derating under proper board thermal design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 120 V - Maximum repetitive reverse voltage; defines safe blocking capability in 12V–48V output rails |
| IO | 12 A - Average rectified current; supports continuous 12A DC output in compact PSU designs |
| VF @ 12A/125°C | 0.68 V - Confirmed forward drop at full load and high ambient; reduces conduction loss by ~15% vs. comparable 120V Schottkys |
| IFSM | 250 A - Non-repetitive surge rating; withstands inrush and transient overloads in hot-plug server modules |
| RθJA | 27 °C/W - Measured on polyimide PCB with recommended pad layout; enables thermal management without heatsink in 25W–35W secondary-side designs |
| TJ max | +150 °C - Maximum operating junction temperature; allows reliable operation in sealed telecom enclosures |
| IR @ 120V/125°C | 0.25 mA - Reverse leakage at worst-case condition; ensures minimal standby power loss in energy-efficient PSUs |
Pinout & Package
POWERDI®5 is a thermally enhanced, surface-mount plastic package with exposed cathode pad for improved heat dissipation. Dimensions: 3.966 mm × 6.504 mm × 1.10 mm (L × W × A), weight ≈ 0.093 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction | Connected to transformer secondary or switch node; carries full load current during conduction phase |
| Cathode | Output terminal for forward conduction | Exposed metal pad on bottom surface; primary thermal path to PCB copper; must be soldered to ≥100 mm² thermal pad |
| Cathode (top side) | Secondary cathode connection | Top-side metallization provides redundant current path and mechanical anchoring; electrically tied to bottom cathode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at high temperature | 0.68 V @ 12A/125°C - Directly lowers I²R losses and improves efficiency in high-ambient environments |
| Soft, fast switching | No reverse recovery tail current - Eliminates switching noise and EMI in synchronous rectifier replacement applications |
| +150°C operating junction temperature | Rated for full 12A current up to TJ = +150°C - Enables smaller heatsinking and higher power density in confined spaces |
| Lead-free, halogen-free "Green" construction | Meets RoHS 2 and JEDEC J-STD-020 Level 1 - Supports automated reflow assembly and long-term environmental compliance |
| POWERDI®5 thermal enhancement | 27°C/W RθJA on standard polyimide PCB - Achieves >30% better thermal performance than SO-8 or TO-252 equivalents at same footprint |
Applications
| Server VRM Secondary Rectification | Telecom 48V DC/DC Converter |
|---|---|
Use Scenario: High-current, high-density 12V output stage in 1U server VRMs with strict thermal envelope. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement; conducts during low-side MOSFET on-time. Use Value: 0.68V VF at 125°C reduces conduction loss by 0.8W vs. legacy Schottky, enabling 2°C lower MOSFET junction temperature. | Use Scenario: Isolated 48V-to-12V DC/DC module in outdoor telecom base stations with -40°C to +85°C ambient range. IC Role / Device Role / Timing Role: Output rectifier in forward converter topology; handles 12A continuous load with minimal thermal margin. Use Value: 150°C TJ rating and 0.25mA IR at 125°C ensure stable regulation and <10mW standby loss under full thermal stress. |
| Industrial PLC Power Supply | Network Switch PoE++ Midspan |
Use Scenario: 24V/10A auxiliary supply in DIN-rail mounted PLCs with limited airflow and high reliability requirements. IC Role / Device Role / Timing Role: Main output rectifier in flyback-derived dual-output SMPS; operates continuously at 85°C ambient. Use Value: 250A IFSM withstands motor startup surges; 27°C/W RθJA prevents thermal runaway without forced cooling. | Use Scenario: 57V output rectification in IEEE 802.3bt Type 4 PoE++ midspan injectors delivering up to 90W per port. IC Role / Device Role / Timing Role: Primary rectifier in active clamp forward topology; switches at 250kHz with soft recovery. Use Value: Soft switching eliminates reverse recovery spikes, reducing EMI filter size by 30% and passing CISPR-32 Class B without shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT12U120P5-13 | Same die, enhanced thermal pad design; RθJA = 24°C/W (vs. 27°C/W) | Better suited for 15A peak-load scenarios with tighter thermal margins | Select when board space allows larger thermal pad and efficiency gain >0.3% is required |
| MBR12120CT | TO-220AB dual common-cathode Schottky; VF = 0.82V @ 12A/25°C, no soft switching | Requires heatsink; unsuitable for >85°C ambient or high-frequency layouts | Choose only for legacy through-hole designs or cost-sensitive non-thermal-constrained applications |
Compared with SBRT12U120P5-13, the SBR12U120P5-13 offers proven thermal performance at lower cost and smaller footprint, while MBR12120CT introduces significant conduction loss and EMI penalties in modern high-frequency, high-temperature systems.
Availability
SBR12U120P5-13 is available at Aetrix Electronics and suitable for server VRMs, telecom DC/DC converters, and industrial PLC power supplies requiring stable component supply, RoHS-compliant green packaging, and verified thermal performance in high-ambient environments.
Supply support for SBR12U120P5-13 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, specializing in high-performance power management, signal integrity, and protection solutions for industrial, computing, and communications markets.
The SBR® Super Barrier Rectifier product line targets high-efficiency secondary-side rectification in switched-mode power supplies, emphasizing ultra-low VF, soft switching, and extended temperature operation beyond standard Schottky limits.
FAQ
What is the recommended PCB pad layout for optimal thermal performance?
Diodes Incorporated specifies a 16 mm² minimum copper pad connected to internal ground planes via ≥4 thermal vias (0.3mm diameter, 0.8mm pitch) under the exposed cathode. The AP02001 layout document defines exact dimensions: 3.05 mm × 5.37 mm pad with 0.25 mm solder mask opening. This achieves the rated 27°C/W RθJA on 1.6 mm FR-4.
Does SBR12U120P5-13 support reflow soldering per JEDEC J-STD-020?
Yes - it is qualified for standard lead-free reflow profiles (peak 260°C, 20–40 sec above 217°C) and classified as Moisture Sensitivity Level 1. No baking is required prior to assembly. The matte tin finish meets MIL-STD-202 Method 208 for solderability, and the green molding compound complies with UL 94V-0 flammability rating.
How does its leakage current compare to standard Schottky diodes at 125°C?
At 120V reverse bias and +125°C, SBR12U120P5-13 exhibits 0.25 mA IR - approximately 5× lower than typical 120V Schottkys (1.2–1.5 mA). This is achieved via the super barrier structure's reduced minority-carrier injection, directly lowering standby power loss in always-on telecom and industrial systems.
Can it replace a 12A, 100V Schottky in an existing design?
Yes, provided the circuit's maximum reverse voltage does not exceed 100V - the SBR12U120P5-13's 120V rating provides 20% margin. Its lower VF (0.68V vs. typical 0.75V) improves efficiency, but layout must accommodate the POWERDI®5 footprint and thermal pad. No changes to gate drive or control timing are needed due to its soft-switching behavior.
SBR12U120P5-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- PowerDI™ 5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 120 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 12 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 250 µA @ 120 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerDI™ 5
- Operating Temperature - Junction:
- -65°C ~ 150°C
SBR12U120P5-13 FAQ
1.How can I place an order for SBR12U120P5-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR12U120P5-13 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 SBR12U120P5-13 reliable?
The price and inventory of SBR12U120P5-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR12U120P5-13 is usually 5 days.
3.What payment methods are accepted for SBR12U120P5-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR12U120P5-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR12U120P5-13?
SBR12U120P5-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR12U120P5-13 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 SBR12U120P5-13?
For technical support, including SBR12U120P5-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR12U120P5-13 requirements.
6.How does Aetrix verify that SBR12U120P5-13 is sourced from the original manufacturer or authorized distributors?
All SBR12U120P5-13 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 SBR12U120P5-13 meets industry standards.
7.What is the process for return or replacement of SBR12U120P5-13?
All SBR12U120P5-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR12U120P5-13, 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 SBR12U120P5-13 part is unused and in its original packaging.
Return procedure for SBR12U120P5-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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