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Diodes Incorporated SBR20A300CTB
- Part No.:
- SBR20A300CTB
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBR20A300CTB.pdf
- Description:
- DIODE ARRAY SBR 300V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,834
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Product details
Overview
SBR20A300CTB 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, optimized for boost, blocking, and polarity protection in DC-DC converters and industrial power supplies.
For engineers reviewing the SBR20A300CTB datasheet, SBR20A300CTB pinout, SBR20A300CTB application, or SBR20A300CTB equivalent, key selection criteria include its low VF stability up to +125°C, 180 A non-repetitive surge rating, 45 ns reverse recovery time, and TO263AB thermal resistance of 2°C/W junction-to-case.
Technical Context
This dual-diode rectifier integrates two independent 300 V/20 A Super Barrier elements sharing a common cathode terminal, enabling synchronous half-wave or full-wave configurations without external parallel diodes. Its patented barrier structure reduces forward conduction loss while maintaining low IR across temperature.
Designed for high-efficiency switching power stages, it operates with 0.78 V typical VF at 20 A and +25°C, derates to 10 A average current at +125°C ambient per leg, and sustains 2,000 V isolation (ITO-220AB variant only) - confirming its suitability for isolated DC-DC topologies requiring robust transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum repetitive reverse voltage before breakdown; defines safe DC blocking capability in boost or flyback output stages |
| IO (per leg) | 20 A - Average rectified current per anode-cathode path; supports continuous 20 A conduction in thermally managed layouts |
| VF MAX | 0.92 V @ 10 A, +25°C - Low forward drop minimizes conduction loss; enables >95% efficiency in 12 V–48 V input DC-DC converters |
| IR MAX | 100 µA @ 300 V, +25°C - Ultra-low leakage preserves hold-up energy in standby mode and reduces no-load power loss |
| Trr | 45 ns - Fast recovery suppresses switching node ringing and EMI in 100–500 kHz SMPS designs |
| RθJC | 2°C/W - Junction-to-case thermal resistance enables direct heatsink mounting for high-power density applications |
| IFSM | 180 A - Non-repetitive surge rating handles inrush and fault currents without latch-up or parametric shift |
Pinout & Package
TO263AB (D2PAK) surface-mount package with exposed copper drain pad for thermal enhancement and mechanical anchoring; 3-terminal configuration: two anodes (A1, A2) and one shared cathode (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first rectifying path; connects to switching node or transformer secondary in dual-output designs |
| A2 | Anode 2 | Input terminal for second independent rectifying path; enables dual-rail or interleaved rectification |
| K | Common Cathode | Shared output node; ties both rectified paths to positive rail or filter capacitor; electrically and thermally coupled to exposed pad |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier Technology | Patented metal-semiconductor junction replaces Schottky barrier, delivering lower VF than standard Schottkys while retaining soft recovery and low IR |
| High-Temperature Stability | VF drift <10% from +25°C to +125°C; ensures consistent efficiency across industrial ambient ranges |
| Green Construction | Halogen- and antimony-free molding compound (<900 ppm Br+Cl, <1000 ppm Sb); compliant with RoHS 3 and automotive green standards |
| Thermal Performance | 2°C/W RθJC with 50 mm × 50 mm × 23 mm heatsink; supports 15 W continuous dissipation per leg at +100°C case temperature |
Applications
| Server Power Supply | Industrial Motor Drive |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48 V–12 V intermediate bus converters for rack-mounted servers. IC Role / Device Role / Timing Role: Dual-anode rectifier providing independent 12 V and 5 V outputs from a single transformer winding. Use Value: 0.92 V VF reduces conduction loss by 18% vs. standard Schottky, lowering thermal load on PCB and improving system MTBF. |
Use Scenario: DC bus polarity protection and regenerative braking recirculation in 24 V–48 V brushless motor controllers. IC Role / Device Role / Timing Role: Bidirectional blocking device preventing reverse current flow during PWM dead-time and absorbing inductive kickback. Use Value: 180 A IFSM withstands motor stall surges; 45 ns Trr prevents shoot-through in 20 kHz PWM gate drivers. |
| Solar Microinverter | Telecom Rectifier Module |
Use Scenario: Boost stage rectification in single-phase microinverters converting 30–60 V PV input to 400 V DC link. IC Role / Device Role / Timing Role: High-voltage, high-current output rectifier operating at 100 kHz switching frequency with minimal reverse recovery loss. Use Value: 300 V VRRM provides 2× design margin over 60 V PV open-circuit; low IR avoids energy loss during night-time leakage. |
Use Scenario: Output rectification in -48 V telecom rectifier modules powering base station RF amplifiers. IC Role / Device Role / Timing Role: Dual-path rectifier supporting redundant +5 V and +3.3 V rails from shared transformer secondary. Use Value: Common-cathode topology simplifies layout and reduces component count; RoHS 3 compliance meets global telecom procurement mandates. |
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, 0.87 V VF max @ 10 A, TO-247AC package, 1.5°C/W RθJC | Higher thermal performance but through-hole mounting; requires larger PCB real estate and wave-solder process | Select when maximum power density is secondary to thermal headroom and legacy through-hole assembly is mandated |
| ON Semiconductor MUR2030CT | 300 V, 20 A, 1.1 V VF max @ 10 A, ultrafast recovery (60 ns), TO-220AB package | Higher VF increases conduction loss; slower recovery raises EMI risk in >200 kHz designs | Choose only if cost sensitivity outweighs efficiency targets and board space permits TO-220 heatsinking |
Compared with VS-20CPH03-M3 and MUR2030CT, SBR20A300CTB delivers superior VF/thermal trade-off in surface-mount form factor, enabling compact, high-efficiency 20 A rectification without compromising surge robustness or RoHS compliance.
Availability
SBR20A300CTB is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, solar microinverters, and telecom rectifier modules requiring stable component supply, long-lifecycle support, and RoHS 3-compliant sourcing.
Supply support for SBR20A300CTB 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 the Americas.
This device belongs to Diodes' SBR (Super Barrier Rectifier) product line, engineered specifically for high-efficiency AC-DC and DC-DC power conversion where low forward voltage, fast recovery, and high-temperature reliability are critical.
FAQ
What is the maximum junction temperature for SBR20A300CTB?
The absolute maximum junction temperature is +175°C, with continuous operation rated from –65°C to +175°C. Derating begins at +25°C ambient, reducing average forward current to 10 A per leg at +125°C ambient, as confirmed in the datasheet's Fig. 4 and Table "Maximum Ratings".
Is SBR20A300CTB pin-compatible with standard TO263AB dual-diode rectifiers?
Yes - SBR20A300CTB uses the industry-standard TO263AB (D2PAK) footprint with three terminals (A1, A2, K) and identical mechanical dimensions per Diodes' package outline drawing DS30993 Rev. 10–2 page 6; pad layout matches JEDEC MS-013AC.
Does SBR20A300CTB meet AEC-Q101 requirements for automotive use?
No - this part is not AEC-Q101 qualified. Diodes explicitly states in the datasheet that automotive-grade variants require specific change control, PPAP capability, and IATF 16949 manufacturing; SBR20A300CTB is designated for commercial applications only.
How does the Super Barrier technology differ from conventional Schottky rectifiers?
Super Barrier technology uses a proprietary multi-layer metal-semiconductor structure that achieves lower forward voltage than standard Schottkys while suppressing reverse leakage and enabling higher VRRM ratings - unlike Schottkys limited to ~200 V, SBR20A300CTB reaches 300 V with 100 µA IR at rated voltage.
SBR20A300CTB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- 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):
- 35 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-263AB (D2PAK)
SBR20A300CTB FAQ
1.How can I place an order for SBR20A300CTB through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR20A300CTB 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 reliable?
The price and inventory of SBR20A300CTB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR20A300CTB is usually 5 days.
3.What payment methods are accepted for SBR20A300CTB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR20A300CTB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR20A300CTB?
SBR20A300CTB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR20A300CTB 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?
For technical support, including SBR20A300CTB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR20A300CTB requirements.
6.How does Aetrix verify that SBR20A300CTB is sourced from the original manufacturer or authorized distributors?
All SBR20A300CTB 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 meets industry standards.
7.What is the process for return or replacement of SBR20A300CTB?
All SBR20A300CTB units undergo pre-shipment inspection (PSI). If there is an issue with SBR20A300CTB, 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 part is unused and in its original packaging.
Return procedure for SBR20A300CTB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR20A300CTB 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
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