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Diodes Incorporated SBR20A300CTB-13
- Part No.:
- SBR20A300CTB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBR20A300CTB-13.pdf
- Description:
- DIODE ARRAY SBR 300V 10A TO-263
- Quantity:
- Payment:
- Shipping:
Inventory:630
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Product details
Overview
SBR20A300CTB-13 from Diodes Incorporated is a 300 V, 20 A dual common-cathode Super Barrier Rectifier in TO263AB (D2PAK) package, featuring 0.92 V max forward voltage at 10 A and 100 µA max reverse leakage at 300 V and 25°C, optimized for high-efficiency DC/DC boost stages and polarity protection in industrial power supplies.
For engineers reviewing the SBR20A300CTB-13 datasheet, SBR20A300CTB-13 pinout, SBR20A300CTB-13 application, or SBR20A300CTB-13 equivalent, this device delivers verified low VF, high-temperature stability up to +175°C junction, and 180 A non-repetitive surge capability - critical for evaluating rectifier selection in 24–48 V input SMPS and automotive auxiliary power modules.
Technical Context
This dual common-cathode rectifier integrates two independent 300 V, 20 A SBR die in a single TO263AB thermally enhanced surface-mount package, enabling shared cathode routing for synchronous-like efficiency without gate drive complexity. Its patented super barrier structure replaces Schottky architecture with lower IR sensitivity across temperature.
Electrical behavior is defined by 45 ns typical reverse recovery time at IF = 0.5 A, VR = 300 V, and thermal resistance RθJC = 2°C/W (junction-to-case), supporting direct heatsink mounting. The device operates across –65°C to +175°C with no derating required below 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum repetitive reverse blocking voltage per leg; supports 24 V/48 V bus designs with 2× safety margin against transients. |
| IO (Total) | 20 A - Average rectified output current rating for both legs combined; enables compact 100–200 W power stage layouts. |
| VF MAX | 0.92 V @ 10 A, 25°C - Low conduction loss reduces thermal stress and improves efficiency over standard Schottkys in 10–20 A range. |
| IR MAX | 100 µA @ 300 V, 25°C - Ultra-low leakage preserves standby power integrity in always-on systems and battery-backed circuits. |
| Trr | 45 ns typ - Fast recovery minimizes switching losses and EMI in high-frequency (>100 kHz) boost and flyback topologies. |
| RθJC | 2°C/W - Enables direct PCB copper pour heatsinking; achieves <50°C temp rise at 20 A with 50 mm × 50 mm × 23 mm Al heatsink. |
| TJ Range | –65°C to +175°C - Full-rated operation across extended industrial and under-hood automotive environments without derating. |
Pinout & Package
Package: TO263AB (D2PAK), surface-mount, thermally enhanced with exposed anode pad and isolated cathode tab. Molded plastic body rated UL 94V-0; matte tin finish on copper leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | Input anode for first diode leg | Connects to input rail (e.g., boost switch node); electrically isolated from Pin 2 and Pin 3. |
| Pin 2 (Cathode) | Common cathode for both legs | Single output node for dual-leg configuration; must be routed to largest copper area for thermal and current handling. |
| Pin 3 (Anode B) | Input anode for second diode leg | Enables dual-input/single-output rectification (e.g., interleaved boost); symmetrical to Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| Patented Super Barrier technology | Replaces conventional Schottky with lower VF drift vs. temperature and higher IR stability - eliminates need for parallel diodes in high-temp designs. |
| Low VF at high current | 0.78 V typ @ 20 A, 25°C - cuts conduction loss by ~15% vs. comparable 300 V Schottkys, directly improving 12 V–48 V converter efficiency. |
| High surge robustness | 180 A IFSM (8.3 ms half-sine) - withstands inrush and fault currents in motor drives and UPS systems without degradation. |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb); meets EU RoHS 3 and automotive change control requirements. |
| Thermally optimized D2PAK | 2°C/W RθJC with exposed anode pad - allows >15 W continuous dissipation on 4-layer PCB with 2 oz copper and 10 cm² thermal pad. |
Applications
| DC/DC Boost Converter | Polarity Protection Circuit |
|---|---|
|
Use Scenario: 48 V input, 300 V output boost stage in telecom rectifiers and solar microinverters. IC Role / Device Role / Timing Role: Output rectifier handling 15–20 A average current at 100–250 kHz switching frequency. Use Value: 0.92 V VF max reduces conduction loss by 1.8 W vs. legacy 300 V Schottky, lowering heatsink size and system cost. |
Use Scenario: Reverse-voltage protection for 24 V industrial PLC I/O modules with hot-swap capability. IC Role / Device Role / Timing Role: Series-blocking diode placed between connector and main board, conducting only during correct polarity insertion. Use Value: 100 µA IR max ensures <2.5 µW standby leakage at 24 V, preserving battery life in backup-powered nodes. |
| Recirculating Diode in Motor Drive | Blocking Diode in Dual-Supply ORing |
|
Use Scenario: Freewheeling path for brushed DC motor H-bridge with 20 A peak current and 150°C ambient exposure. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback during PWM off-time; operates continuously at TJ ≥ 150°C. Use Value: Stable VF and IR up to +175°C junction eliminate thermal runaway risk seen in standard Schottkys above 125°C. |
Use Scenario: ORing two 12 V redundant power supplies feeding a server backplane with <1 mV cross-conduction threshold. IC Role / Device Role / Timing Role: High-current, low-VF blocking element preventing backfeed while minimizing voltage drop between sources. Use Value: Dual common-cathode configuration enables matched VF tracking between legs, reducing imbalance-induced current hogging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH03-M3 | 300 V, 20 A, TO-247AC package; VF = 0.88 V @ 10 A but RθJC = 1.5°C/W; no common-cathode dual configuration. | Requires separate cathode routing and larger footprint; better for discrete high-power heatsink mounting than PCB-integrated designs. | Select when thermal interface to external heatsink is preferred over PCB copper thermal management. |
| ON Semiconductor MUR2030CT | 300 V, 20 A, TO-220AB; ultrafast recovery (Trr = 35 ns) but VF = 1.15 V @ 10 A; higher conduction loss and no green compliance. | Suitable for cost-sensitive industrial AC/DC where efficiency is secondary to BOM cost; not recommended for automotive or energy-efficient designs. | Choose only if RoHS 3 compliance and sub-1 V VF are non-critical and TO-220 mechanical fit is mandatory. |
Compared with VS-20CPH03-M3 and MUR2030CT, SBR20A300CTB-13 uniquely combines dual common-cathode topology, 2°C/W thermal resistance in surface-mount form, and guaranteed 100 µA IR at 300 V - making it optimal for space-constrained, thermally demanding, and efficiency-critical 20 A rectification tasks.
Availability
SBR20A300CTB-13 is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifiers, and automotive auxiliary power modules requiring stable component supply, long-term lifecycle support, and RoHS 3-compliant sourcing.
Supply support for SBR20A300CTB-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, manufacturing, and sales operations across Asia, Europe, and North America.
This device belongs to Diodes' SBR (Super Barrier Rectifier) product line, engineered specifically to replace Schottky rectifiers in 20–100 A, 30–300 V applications where low VF, high-temperature stability, and low leakage are essential - targeting industrial, telecom, and automotive power conversion.
FAQ
What is the maximum continuous junction temperature for SBR20A300CTB-13?
The absolute maximum junction temperature is +175°C, and the device maintains full electrical specifications across its entire operating range from –65°C to +175°C without derating. Thermal performance is validated with RθJC = 2°C/W using a 50 mm × 50 mm × 23 mm aluminum heatsink, enabling reliable operation in sealed enclosures and under-hood environments.
Is SBR20A300CTB-13 suitable for automotive applications?
SBR20A300CTB-13 is RoHS 3 compliant and halogen/antimony free, meeting "Green" definitions per Diodes' standards. While not pre-qualified to AEC-Q101, it is manufactured in IATF 16949 certified facilities and supports PPAP documentation upon request - making it viable for non-safety-critical automotive auxiliary systems like infotainment power supplies and body control modules.
How does the dual common-cathode configuration affect PCB layout?
The shared cathode (Pin 2) requires a single large copper pour connected to ground or output rail, minimizing loop inductance and thermal resistance. Anode pins (1 and 3) must be independently routed to avoid coupling; recommended pad layout follows Diodes' TO263AB footprint with ≥10 cm² thermal pad and solder mask defined for optimal heat transfer.
What is the surge current rating and test condition for IFSM?
IFSM is rated at 180 A for an 8.3 ms single half-sine wave, tested per JEDEC JESD24-11. This rating applies with the device mounted on a standard FR-4 PCB with 2 oz copper and no external heatsink. Derating is not required for short-duration surges such as motor startup or capacitor charging inrush events.
SBR20A300CTB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 920 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 45 ns
- Current - Reverse Leakage @ Vr:
- 100 µA @ 300 V
- Operating Temperature - Junction:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263
SBR20A300CTB-13 FAQ
1.How can I place an order for SBR20A300CTB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR20A300CTB-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 SBR20A300CTB-13 reliable?
The price and inventory of SBR20A300CTB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR20A300CTB-13 is usually 5 days.
3.What payment methods are accepted for SBR20A300CTB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR20A300CTB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR20A300CTB-13?
SBR20A300CTB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR20A300CTB-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 SBR20A300CTB-13?
For technical support, including SBR20A300CTB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR20A300CTB-13 requirements.
6.How does Aetrix verify that SBR20A300CTB-13 is sourced from the original manufacturer or authorized distributors?
All SBR20A300CTB-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 SBR20A300CTB-13 meets industry standards.
7.What is the process for return or replacement of SBR20A300CTB-13?
All SBR20A300CTB-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR20A300CTB-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 SBR20A300CTB-13 part is unused and in its original packaging.
Return procedure for SBR20A300CTB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR20A300CTB-13 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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