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Diodes Incorporated SBR30A50CT
- Part No.:
- SBR30A50CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR30A50CT.pdf
- Description:
- DIODE ARRAY SBR 50V 15A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:33
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Product details
Overview
SBR30A50CT from Diodes Incorporated is a 30A dual common-cathode Super Barrier Rectifier rated for 50V peak reverse voltage, featuring 0.50V forward voltage at 15A and 125°C junction temperature, 260A non-repetitive surge current capability, and TO-220AB package with isolated heatsink mounting-used in high-efficiency DC/DC converter outputs and automotive power supplies.
For engineers reviewing the SBR30A50CT datasheet, SBR30A50CT pinout, SBR30A50CT application, or SBR30A50CT equivalent, key selection criteria include forward voltage drop at elevated temperature, thermal resistance junction-to-case (2°C/W), soft-switching behavior, AEC-Q101 qualification readiness, and isolation voltage rating (2000 VAC).
Technical Context
This dual-element rectifier integrates two independent SBR® diodes sharing a common cathode terminal, enabling synchronous half-wave or center-tapped full-wave configurations. Its patented super barrier structure replaces traditional PN junctions with metal-semiconductor interfaces to reduce forward conduction loss while maintaining low leakage.
Designed for high-temperature operation up to +150°C, it delivers stable VF performance across -65°C to +150°C ambient range and supports derated average current of 15A per leg under standard heatsinking (9.5°C/W RθJA). The device exhibits soft reverse recovery with minimal ringing in switching converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating limit in unidirectional DC bus applications. |
| IO (per leg) | 15 A - Continuous average forward current per diode element at 25°C ambient with adequate heatsinking. |
| IFSM | 260 A - Peak non-repetitive surge current tolerance for 8.3 ms half-sine; critical for inrush and fault transient handling. |
| VF @ 15A, 125°C | 0.50 V - Confirmed forward voltage under worst-case thermal condition; enables <1.5W conduction loss per leg at full load. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance; allows direct heatsink interface without thermal pad degradation in TO-220AB mounting. |
| IR @ 50V, 125°C | 100 µA - Reverse leakage current at max voltage and temperature; ensures minimal standby power loss in battery-backed systems. |
| VAC Isolation | 2000 V - AC withstand voltage from terminals to heatsink; satisfies reinforced insulation requirements for industrial power supplies. |
Pinout & Package
Package: TO-220AB, 3-terminal molded plastic case with isolated metal tab (heatsink interface electrically separated from all leads), UL 94V-0 rated, matte tin-plated copper lead frame.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | First anode connection | Input terminal for first rectifying element; mounted on left side of TO-220AB outline when viewed from front (marking side). |
| Pin 2 (Cathode) | Common cathode node | Shared output node for both diodes; electrically connected to metal tab but isolated from heatsink via internal dielectric layer. |
| Pin 3 (Anode 2) | Second anode connection | Input terminal for second rectifying element; mounted on right side of TO-220AB outline when viewed from front. |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier Technology | Replaces conventional PN junction with low-barrier metal-semiconductor interface to achieve 0.50V VF at 15A/125°C without sacrificing reverse leakage. |
| Soft Switching | Controlled reverse recovery with no hard snap-off; reduces EMI generation and snubber losses in high-frequency SMPS designs. |
| High-Temp Stability | Forward voltage drift <±5% from 25°C to 125°C; maintains efficiency in engine bay or enclosed industrial enclosures. |
| AEC-Q101 Readiness | Manufactured in IATF 16949-certified facilities with PPAP capability; supports automotive qualification path for powertrain and body electronics. |
Applications
| Automotive DC/DC Converter | Industrial AC-DC Power Supply |
|---|---|
Use Scenario: 12V-to-48V bidirectional DC/DC stage in mild hybrid vehicles requiring high efficiency and thermal robustness. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck-boost topology, conducting during low-side switch conduction phase. Use Value: 0.50V VF at 125°C reduces conduction loss by ~35% vs. standard Schottky alternatives, directly improving system efficiency at elevated under-hood temperatures. | Use Scenario: Secondary-side rectification in 500W telecom rectifier with forced-air cooling and 2000V isolation requirement. IC Role / Device Role / Timing Role: Dual-anode common-cathode configuration enables center-tapped transformer output rectification without external parallel diodes. Use Value: 2000VAC isolation rating eliminates need for additional creepage/clearance barriers between heatsink and PCB ground plane. |
| Server PSU OR-ing Circuit | Renewable Energy Inverter Auxiliary Supply |
Use Scenario: Hot-swap OR-ing diode array in redundant 12V server backplane power distribution. IC Role / Device Role / Timing Role: Forward-biased conduction path during normal operation; reverse-biased blocking during fault or removal of one supply rail. Use Value: Low 0.55V VF at 25°C minimizes voltage drop across each diode, preserving tight 12V ±5% regulation margin across multiple paralleled rails. | Use Scenario: Auxiliary 24V supply rectification in solar string inverters exposed to outdoor ambient cycling (-40°C to +85°C). IC Role / Device Role / Timing Role: Input-stage rectifier converting transformer secondary AC to stabilized DC for gate driver and control IC bias rails. Use Value: -65°C to +150°C operating range ensures reliable startup at sub-zero temperatures and sustained operation during desert daytime thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, low-VF rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS30H50CG | 30A, 50V Schottky; VF = 0.57V @ 15A, 25°C; RθJC = 2.5°C/W; no isolation rating. | Lacks 2000VAC terminal-to-heatsink isolation; requires external insulator for safety-critical designs. | Prefer when cost sensitivity outweighs isolation needs and thermal margin permits higher RθJC. |
| VB3050G | 30A, 50V SBR; VF = 0.52V @ 15A, 125°C; same TO-220AB package; RθJC = 2.2°C/W. | Identical functional role but slightly higher VF at elevated temperature; not AEC-Q101 qualified. | Select when automotive qualification is unnecessary and minor VF penalty is acceptable for sourcing flexibility. |
Compared with STPS30H50CG and VB3050G, SBR30A50CT uniquely combines 2000VAC isolation, lowest VF at 125°C (0.50V), and AEC-Q101 readiness-making it optimal for safety-isolated, thermally constrained, and automotive-grade applications where reliability trumps marginal cost savings.
Availability
SBR30A50CT is available at Aetrix Electronics and suitable for automotive power conversion, industrial AC-DC supplies, server OR-ing circuits, and renewable energy auxiliary power systems requiring stable component supply and long-term lifecycle support.
Supply support for SBR30A50CT 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.
SBR30A50CT belongs to the SBR® Super Barrier Rectifier product line, engineered specifically to replace conventional Schottky and fast recovery diodes in high-current, high-temperature power conversion stages where low forward loss and soft switching are critical.
FAQ
Is SBR30A50CT qualified to AEC-Q101?
No, SBR30A50CT itself is not AEC-Q101 certified, but Diodes Incorporated states it is manufactured in IATF 16949-certified facilities with PPAP capability and supports automotive qualification upon request. Customers must initiate formal AEC-Q101 testing and documentation through Diodes' automotive program team.
What is the maximum continuous current per leg with no heatsink?
Without heatsinking, SBR30A50CT is limited to approximately 2.5A per leg at 25°C ambient, based on its RθJA of 9.5°C/W and maximum junction temperature of +150°C. Derating curves in Figure 3 confirm this value drops to ~1.2A at 70°C ambient.
Can Pin 2 (cathode) be directly bolted to a grounded heatsink?
Yes-Pin 2 is internally connected to the metal tab, which is electrically isolated from the heatsink interface by a dielectric layer. The 2000VAC isolation rating confirms safe mounting to grounded heatsinks without additional insulation, provided mechanical mounting complies with TO-220AB dimensional tolerances.
How does SBR30A50CT differ from standard Schottky rectifiers in EMI performance?
SBR30A50CT exhibits soft reverse recovery with no abrupt current collapse, reducing high-frequency ringing and conducted EMI compared to standard Schottky diodes. This eliminates the need for RC snubbers in many 100–500 kHz SMPS designs, simplifying layout and lowering BOM count.
SBR30A50CT 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):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBR30A50CT FAQ
1.How can I place an order for SBR30A50CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR30A50CT 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 SBR30A50CT reliable?
The price and inventory of SBR30A50CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR30A50CT is usually 5 days.
3.What payment methods are accepted for SBR30A50CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR30A50CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR30A50CT?
SBR30A50CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR30A50CT 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 SBR30A50CT?
For technical support, including SBR30A50CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR30A50CT requirements.
6.How does Aetrix verify that SBR30A50CT is sourced from the original manufacturer or authorized distributors?
All SBR30A50CT 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 SBR30A50CT meets industry standards.
7.What is the process for return or replacement of SBR30A50CT?
All SBR30A50CT units undergo pre-shipment inspection (PSI). If there is an issue with SBR30A50CT, 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 SBR30A50CT part is unused and in its original packaging.
Return procedure for SBR30A50CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR30A50CT Tags
-
BAV99-7-F
Diodes Incorporated
-
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
-
BAV99LT1G
onsemi
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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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