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Diodes Incorporated SBRT5A50SAF-13
- Part No.:
- SBRT5A50SAF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SBRT5A50SAF-13.pdf
- Description:
- DIODE SBR 50V 5A SMAF
- Quantity:
- Payment:
- Shipping:
Inventory:69,001
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Product details
Overview
SBRT5A50SAF-13 from Diodes Incorporated is a 5A, 50V Trench Super Barrier Rectifier in SMAF package, featuring VF ≤ 0.53 V at 5A/25°C, IR ≤ 150 µA at 50V/25°C, and thermal resistance RθJA = 38°C/W. It serves as a high-efficiency boost or recirculating diode in DC-DC converters and power supplies.
For engineers reviewing the SBRT5A50SAF-13 datasheet, SBRT5A50SAF-13 pinout, SBRT5A50SAF-13 application, or SBRT5A50SAF-13 equivalent, key selection criteria include forward voltage at 5A, high-temperature leakage (≤45 µA at 125°C), peak surge rating (100A), RoHS/Green compliance, and SMAF footprint compatibility with space-constrained PCB layouts.
Technical Context
This device employs Diodes Incorporated's Trench Super Barrier (SBR) technology to achieve lower VF than standard Schottky rectifiers while maintaining superior high-temperature reverse leakage performance. Its structure enables stable operation up to +150°C junction temperature with minimal thermal runaway risk.
The SMAF package supports automated SMT assembly and provides 38°C/W junction-to-ambient thermal resistance on a 1"×1" FR-4 board. Polarity is marked by cathode band; terminals use matte tin over copper leadframe, solderable per MIL-STD-202 Method 208.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in boost or flyback clamp circuits. |
| IO | 5 A - Average rectified output current at TA = 25°C; derated to ~3.2 A at +100°C per Figure 4. |
| VF MAX | 0.53 V - Max forward voltage at IF = 5A, TJ = 25°C; enables <0.27 W conduction loss at full load. |
| IR MAX | 150 µA - Max reverse leakage at VR = 50V, TJ = 25°C; rises to 45 µA at 125°C, ensuring stability in hot environments. |
| IFSM | 100 A - Non-repetitive surge rating (8.3 ms half-sine); withstands inrush and transient overloads in SMPS input stages. |
| RθJA | 38 °C/W - Thermal resistance junction-to-ambient on standard FR-4; determines required heatsinking for continuous 5A operation. |
Pinout & Package
Package: SMAF (Surface-Mount Axial Flat), low-profile plastic case (UL 94V-0), 0.064 g weight, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to source side (e.g., switch node in boost converter); requires adequate copper pour for thermal dissipation. |
| Cathode | Current exit terminal during forward conduction; marked with band | Connected to output rail or ground return path; polarity must be verified before placement to prevent reverse bias failure. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at 5A | 0.53 V max at 25°C - reduces conduction loss by ~30% vs. comparable Schottky diodes, improving efficiency in 12V–48V DC-DC stages. |
| High-temp IR stability | 45 µA at 125°C - limits thermal runaway risk in enclosed or high-ambient environments like industrial power modules. |
| Lead-free & Green compliant | Meets RoHS 2 (2011/65/EU), <900 ppm Br/Cl, <1000 ppm Sb - satisfies environmental compliance for global OEM shipments. |
| SMAF footprint | 4.00 mm × 2.50 mm body, 0.50–1.50 mm lead length - enables high-density layout in compact AC/DC adapters and PoE injectors. |
Applications
| Boost Diode | Blocking Diode |
|---|---|
Use Scenario: Used in non-isolated boost converters to transfer energy from input to output capacitor during switch-off phase. IC Role / Device Role / Timing Role: Unidirectional current valve enabling step-up voltage conversion; conducts only when MOSFET is off. Use Value: Low VF minimizes power loss during high-current pulse conduction, directly increasing converter efficiency above 90% at 5A load. | Use Scenario: Placed between battery and system rail to prevent backfeed during standby or fault conditions. IC Role / Device Role / Timing Role: Reverse-polarity protection element; blocks current flow from system to battery when input is absent. Use Value: 150 µA IR at 25°C ensures negligible standby drain, extending battery life in portable medical monitors and IoT edge nodes. |
| Recirculating Diode | Output Rectifier |
Use Scenario: Provides freewheeling path for inductive current in buck-derived topologies (e.g., synchronous buck with external FET). IC Role / Device Role / Timing Role: Clamp diode that conducts during low-side FET off-time to maintain continuous inductor current. Use Value: 100A IFSM rating handles peak inductor current surges without degradation, supporting robust operation in motor drive gate drivers. | Use Scenario: Rectifies secondary-side AC in isolated flyback or forward converters for 5–12V output rails. IC Role / Device Role / Timing Role: Output-stage unidirectional conductor; turns on synchronously with transformer reset phase. Use Value: Stable VF across -55°C to +150°C ensures consistent regulation margin in automotive infotainment power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT5A50S-13 | SMA package (not SMAF); 0.2 mm taller, 0.3 mm wider body; RθJA = 40°C/W | Same electrical specs but less suitable for ultra-thin designs requiring <1.1 mm height | Select if existing SMA footprint is locked and thermal margin allows 2°C/W higher RθJA. |
| SS5P5L-13-F | 5A, 50V Schottky; VF = 0.52 V typ at 5A but IR = 200 µA at 125°C (vs. 45 µA) | Higher leakage may compromise reliability in sealed, high-temp enclosures | Prefer SBRT5A50SAF-13 where thermal stability > absolute lowest VF is critical. |
Compared with SBRT5A50S-13 and SS5P5L-13-F, the SBRT5A50SAF-13 delivers tighter thermal resistance control and significantly lower high-temperature leakage-making it optimal for thermally constrained, mission-critical rectification where long-term reliability outweighs marginal VF reduction.
Availability
SBRT5A50SAF-13 is available at Aetrix Electronics and suitable for DC-DC converter design, PoE power sourcing equipment, and industrial LED driver applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for SBRT5A50SAF-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The Trench Super Barrier Rectifier (SBR) product line targets high-efficiency, high-reliability power conversion in space- and thermally-constrained applications such as telecom power supplies, server VRMs, and automotive body electronics.
FAQ
What is the maximum junction temperature rating for SBRT5A50SAF-13?
The device is rated for continuous operation from –55°C to +150°C junction temperature. Its thermal resistance (RθJA = 38°C/W) and low high-temperature leakage (45 µA at 125°C) enable reliable use in sealed enclosures or near heat-generating components without active cooling.
Is SBRT5A50SAF-13 compatible with lead-free reflow processes?
Yes. The SMAF package uses matte tin–annealed copper leadframe and complies with JEDEC J-STD-020 moisture sensitivity Level 1. It supports standard Pb-free reflow profiles (peak 260°C) without delamination or solder joint integrity issues.
How does SBRT5A50SAF-13 differ from standard Schottky rectifiers?
Unlike conventional Schottky diodes, this Trench SBR achieves lower reverse leakage at elevated temperatures (45 µA at 125°C vs. >200 µA for many Schottkys) while maintaining competitive VF. Its trench structure suppresses thermal runaway, making it more robust in high-ambient applications.
Can SBRT5A50SAF-13 replace a 5A, 50V standard recovery diode?
No-it is not a direct replacement for standard PN junction diodes due to its lower VRRM margin and lack of soft recovery. It is optimized for high-frequency switching (e.g., >100 kHz) where low VF matters most; use only where reverse recovery time and voltage overshoot are not critical.
SBRT5A50SAF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- TrenchSBR
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 530 mV @ 5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 150 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
SBRT5A50SAF-13 FAQ
1.How can I place an order for SBRT5A50SAF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBRT5A50SAF-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 SBRT5A50SAF-13 reliable?
The price and inventory of SBRT5A50SAF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBRT5A50SAF-13 is usually 5 days.
3.What payment methods are accepted for SBRT5A50SAF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBRT5A50SAF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBRT5A50SAF-13?
SBRT5A50SAF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBRT5A50SAF-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 SBRT5A50SAF-13?
For technical support, including SBRT5A50SAF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBRT5A50SAF-13 requirements.
6.How does Aetrix verify that SBRT5A50SAF-13 is sourced from the original manufacturer or authorized distributors?
All SBRT5A50SAF-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 SBRT5A50SAF-13 meets industry standards.
7.What is the process for return or replacement of SBRT5A50SAF-13?
All SBRT5A50SAF-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBRT5A50SAF-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 SBRT5A50SAF-13 part is unused and in its original packaging.
Return procedure for SBRT5A50SAF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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