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Diodes Incorporated SBR30300CT
- Part No.:
- SBR30300CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR30300CT.pdf
- Description:
- DIODE ARRAY SBR 300V 15A TO220-3
- Quantity:
- Payment:
- Shipping:
Inventory:318
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Product details
Overview
SBR30300CT from Diodes Incorporated is a 30A dual common-cathode Super Barrier Rectifier rated for 300V peak reverse voltage, with 0.76V typical forward voltage at 15A/25°C and 25ns typical reverse recovery time. It delivers low conduction loss and soft-switching behavior in high-frequency DC-DC converters and AC-DC front-ends.
For engineers reviewing the SBR30300CT datasheet, SBR30300CT pinout, SBR30300CT application, or SBR30300CT equivalent, key selection criteria include forward voltage at elevated junction temperature, thermal resistance to heatsink, surge current capability, and TO-220AB package mounting compatibility.
Technical Context
This dual-diode rectifier integrates two independent 300V/15A legs in a single TO-220AB package with common cathode configuration, enabling center-tapped transformer secondary rectification or dual-output synchronous rectifier replacement. Its patented Super Barrier structure replaces Schottky metal-semiconductor junctions with optimized epitaxial doping profiles.
The device operates up to 175°C junction temperature with 2°C/W typical junction-to-case thermal resistance (TO-220AB), and exhibits soft reverse recovery (25–35ns) under 100A/μs di/dt conditions - critical for reducing EMI in high-switching-frequency power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Maximum repetitive reverse blocking voltage per leg; defines usable input voltage range in offline or boost PFC stages. |
| IO (per leg) | 15 A - Average forward current rating per diode element; supports 30A total output when both legs used in parallel configuration. |
| VF @ 15A, 25°C | 0.76 V - Low conduction loss enables >94% efficiency in 12V-output LLC resonant converters at full load. |
| trr | 25 ns - Fast, soft reverse recovery minimizes switching losses and ringing in 300–500 kHz SMPS designs. |
| RθJC | 2 °C/W - Enables direct heatsink mounting without thermal interface pads for 30W+ dissipation at <100°C case temperature. |
| IFSM | 200 A - Withstands 8.3ms half-sine surge; sufficient for cold-start inrush limiting in industrial AC-DC modules. |
| TJ Range | −65 to +175 °C - Supports operation in automotive under-hood environments and industrial motor drive heat sinks. |
Pinout & Package
TO-220AB package with isolated tab (electrically connected to cathode), 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Leg 1 | Connects to transformer secondary winding or switch node; electrically isolated from heatsink. |
| Pin 2 | Common Cathode | Output node shared by both diodes; must be routed with low-inductance path to bulk capacitor. |
| Pin 3 | Anode of Leg 2 | Second input path for dual-output or interleaved rectification; symmetrical to Pin 1. |
| Tab | Cathode (bonded) | Electrically tied to Pin 2; requires insulating washer if mounted to grounded heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier Technology | Replaces Schottky contact with doped silicon barrier - eliminates thermal runaway risk while retaining low VF. |
| Soft Switching | Controlled minority-carrier recombination reduces EMI generation during turn-off, easing EMC filter design. |
| High-Temp Stability | Leakage remains ≤10 mA at 300V/125°C - ensures reliability in sealed enclosures without forced air. |
| RoHS & Green Compound | Lead-free matte tin terminals and halogen-free molding compound meet IPC-1752 and EU Directive 2015/863. |
Applications
| Server Power Supply | Industrial Motor Drive |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48V/50A telecom rectifiers with 300kHz phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: Dual-leg common-cathode rectifier replacing discrete Schottkys to reduce conduction loss and improve thermal margin. Use Value: 0.76V VF at 15A lowers diode conduction loss by 18% vs. legacy 45V Schottky arrays, improving full-load efficiency from 92.1% to 93.7%. | Use Scenario: DC bus pre-charge and braking energy recirculation in 3-phase IGBT inverter drives (15–30kW). IC Role / Device Role / Timing Role: Bidirectional clamp diode pair handling regenerative current during dynamic braking events. Use Value: 200A non-repetitive surge rating absorbs 250ms braking pulses without degradation, extending IGBT lifetime in cyclic duty applications. |
| LED Streetlight Driver | Automotive On-Board Charger |
Use Scenario: Output rectification in 150W constant-current LED driver with active PFC + flyback combo stage. IC Role / Device Role / Timing Role: High-voltage output rectifier operating at 120°C ambient inside sealed aluminum housing. Use Value: 175°C max junction temperature and 0.92V VF at 125°C enable stable 15A output without derating in passive-cooled fixtures. | Use Scenario: Isolated DC-DC stage in 6.6kW bidirectional OBC converting 400V battery to 12V auxiliary rail. IC Role / Device Role / Timing Role: Common-cathode rectifier in dual-active-bridge secondary with 200kHz switching frequency. Use Value: 25ns trr and soft recovery suppress voltage overshoot across MOSFETs, reducing snubber losses by 33% versus standard FRDs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-30CPH03-M3 | 30A/300V common-cathode SiC Schottky; VF = 0.95V @ 15A, 25°C; zero reverse recovery. | Higher VF increases conduction loss but eliminates all switching loss; requires gate-drive isolation for synchronous control. | Select for >500kHz designs where zero Qrr outweighs VF penalty; avoid if thermal budget is constrained below 85°C. |
| ON Semiconductor MUR3030CT | 30A/300V ultrafast recovery diode; VF = 1.15V @ 15A, 25°C; trr = 60ns; RθJC = 2.5°C/W. | Higher VF and slower recovery increase losses in high-frequency topologies; better surge robustness than SBR. | Select for cost-sensitive 100–200kHz industrial PSUs where EMI filtering is less critical and thermal margin exceeds 15°C. |
Compared with VS-30CPH03-M3 and MUR3030CT, SBR30300CT offers optimal balance of low VF, soft recovery, and thermal performance for 200–400kHz power supplies - delivering 1.2W lower dissipation than MUR3030CT and 0.45W less than VS-30CPH03-M3 at 15A/125°C.
Availability
SBR30300CT is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, LED streetlight drivers, and automotive on-board chargers requiring stable component supply and long-term production continuity.
Supply support for SBR30300CT 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 centers across Asia and manufacturing in China, Taiwan, and the US.
The SBR® Super Barrier Rectifier product line targets high-efficiency, high-reliability power conversion in computing, industrial, and automotive applications - specifically engineered to replace Schottky and ultrafast diodes where thermal stability and soft switching are critical.
FAQ
Is SBR30300CT pin-compatible with standard TO-220AB dual diodes like MUR3030CT?
Yes - SBR30300CT uses identical TO-220AB mechanical outline and 3-pin common-cathode pinout (Anode1–Cathode–Anode2). Mounting hole spacing, tab dimensions, and terminal pitch match industry-standard dual diodes, enabling drop-in replacement without PCB redesign.
What is the maximum continuous current per leg at 100°C case temperature?
Per Figure 1 in DS30995 Rev. 6-2, the derated average forward current per leg is 10.5A at TC = 100°C. This assumes proper heatsinking with RθCA ≤ 1.5°C/W and no airflow; total device current remains 21A with both legs active.
Does the cathode tab require electrical isolation from the heatsink?
Yes - the metal tab is internally bonded to the common cathode (Pin 2). If the heatsink is grounded or at a different potential, an insulating washer and shoulder washer must be used to prevent short circuits and ensure safe operation.
How does SBR30300CT's leakage current compare to Schottky diodes at 125°C?
At VR = 300V and TJ = 125°C, SBR30300CT exhibits ≤10mA IR - significantly lower than typical 45V Schottkys (which exceed 100mA at same conditions). This enables reliable operation in high-voltage, high-temperature systems where leakage-induced thermal runaway is a concern.
SBR30300CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- TO-220-3
- 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):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.03 V @ 15 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:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBR30300CT FAQ
1.How can I place an order for SBR30300CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR30300CT 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 SBR30300CT reliable?
The price and inventory of SBR30300CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR30300CT is usually 5 days.
3.What payment methods are accepted for SBR30300CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR30300CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR30300CT?
SBR30300CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR30300CT 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 SBR30300CT?
For technical support, including SBR30300CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR30300CT requirements.
6.How does Aetrix verify that SBR30300CT is sourced from the original manufacturer or authorized distributors?
All SBR30300CT 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 SBR30300CT meets industry standards.
7.What is the process for return or replacement of SBR30300CT?
All SBR30300CT units undergo pre-shipment inspection (PSI). If there is an issue with SBR30300CT, 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 SBR30300CT part is unused and in its original packaging.
Return procedure for SBR30300CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR30300CT 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
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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