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Diodes Incorporated SBR30U30CT
- Part No.:
- SBR30U30CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR30U30CT.pdf
- Description:
- DIODE ARRAY SBR 30V 15A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:37
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Product details
Overview
SBR30U30CT from Diodes Incorporated is a 30A dual common-cathode Super Barrier Rectifier in TO-220AB package, rated for 30V peak reverse voltage and optimized for high-efficiency DC/DC conversion in industrial power supplies. It delivers ultra-low forward voltage (0.41V typ @ 15A, 25°C), superior avalanche energy rating (800 mJ), and operates up to 150°C junction temperature.
For engineers reviewing the SBR30U30CT datasheet, SBR30U30CT pinout, SBR30U30CT application, or SBR30U30CT equivalent, key selection criteria include forward voltage at high current/temperature, avalanche ruggedness under transient overload, thermal resistance (RθJC = 2°C/W), and TO-220AB mechanical compatibility with heatsink mounting.
Technical Context
This dual-diode rectifier integrates two independent SBR elements sharing a common cathode terminal (Pin 2), enabling synchronous half-wave or center-tap configurations. Its patented super barrier structure replaces traditional PN junctions with low-barrier metal-semiconductor interfaces, reducing conduction loss while maintaining fast soft recovery (no significant reverse recovery charge).
The device is characterized for 60Hz resistive/inductive loads with 20% derating for capacitive loads, and its avalanche capability is validated per IAS = 20A, L = 8.5 mH, TJ = 25°C - supporting robust operation in flyback snubber and inductive switching circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage per diode element; defines safe operating limit in DC bus clamping or output rectification. |
| IO @ TC=140°C | 30 A - Average forward current rating when case temperature is held at 140°C; requires heatsink design targeting ≤2°C/W thermal path. |
| VF @ 30A, 25°C | 0.50 V max - Forward drop per diode at full rated current; directly reduces conduction loss in high-current 12V/24V output stages. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance; enables precise heatsink sizing using measured case temperature instead of ambient assumptions. |
| EAS | 800 mJ - Non-repetitive avalanche energy per element; supports reliable operation during inductive turn-off transients without external snubbers. |
| TJ max | +150 °C - Maximum junction temperature; allows sustained operation in enclosed industrial enclosures without forced air cooling. |
Pinout & Package
Package: TO-220AB, plastic molded, UL 94V-0 rated, lead-free and RoHS compliant. Mounting tab (Pin 2) is common cathode; Pins 1 and 3 are anodes of the two independent diode elements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode Element 1 | Input terminal for first rectifying path; electrically isolated from Pin 3; connects to AC or switched node. |
| Pin 2 | Common Cathode (Mounting Tab) | Shared output terminal for both diodes; thermally and electrically connected to heatsink; must be insulated if heatsink is grounded. |
| Pin 3 | Anode of Diode Element 2 | Input terminal for second rectifying path; electrically isolated from Pin 1; enables dual-input or center-tap configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at high current | 0.41 V typ @ 15A, 25°C - cuts conduction loss by ~30% vs. standard Schottky diodes at same rating, improving efficiency in 12V–48V SMPS. |
| Soft, fast switching | No measurable Qrr or hard reverse recovery - eliminates EMI spikes and gate drive stress in synchronous rectifier layouts. |
| 150°C continuous operation | Rated for full 30A output at TJ = 150°C - enables compact designs in sealed industrial enclosures without derating. |
| 800 mJ avalanche energy | Validated per JEDEC JESD24-11 - sustains repetitive inductive turn-off events in motor drive freewheeling paths without degradation. |
Applications
| Industrial Switch-Mode Power Supply | Server VRM Output Rectification |
|---|---|
Use Scenario: Secondary-side rectification in 48V input, 12V/30A output DC/DC converters for PLC controllers. IC Role / Device Role / Timing Role: Dual-anode common-cathode rectifier providing parallel current paths with shared thermal interface to heatsink. Use Value: 0.41V forward drop at 15A reduces total conduction loss to <1.2W per diode, lowering heatsink requirements by 40% vs. legacy Schottky solutions. | Use Scenario: High-density 12V output stage in telecom server VRMs where space and thermal management are critical. IC Role / Device Role / Timing Role: Common-cathode dual rectifier replacing two discrete devices, simplifying layout and reducing PCB footprint. Use Value: RθJC = 2°C/W enables direct mounting to cold plate, achieving 150°C junction temp at full load without airflow - verified per JEDEC JESD51-2. |
| Motor Drive Freewheeling Path | LED Driver Output Stage |
Use Scenario: Bidirectional freewheeling path in 24V brushed DC motor H-bridge drivers handling 30A peak current. IC Role / Device Role / Timing Role: Avalanche-rugged rectifier absorbing inductive kickback energy during PWM turn-off transitions. Use Value: 800 mJ single-pulse avalanche energy rating ensures >10⁵ cycles of 20A/8.5mH inductive switching without parameter drift or failure. | Use Scenario: Constant-current output rectification in outdoor LED streetlight drivers exposed to ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: High-temperature-stable rectifier maintaining low VF drift across -40°C to +85°C ambient. Use Value: VF increases only 0.11V from 25°C to 125°C (at 15A), ensuring stable current regulation and minimal thermal runaway risk. |
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-30CPQ030 | 30V, 30A, common-cathode Schottky; VF = 0.52V max @ 30A, 25°C; no specified avalanche rating. | Lacks avalanche ruggedness; unsuitable for inductive freewheeling without external clamping. | Prefer when cost sensitivity outweighs need for transient robustness and thermal margin. |
| ON Semiconductor MUR3030CT | 30V, 30A, common-cathode ultrafast recovery rectifier; VF = 1.15V typ @ 30A; trr = 35ns. | Higher conduction loss and reverse recovery noise; requires snubber network in high-frequency designs. | Select only when higher reverse voltage margin (>30V) or lower leakage (<1µA) is required at expense of efficiency. |
Compared with VS-30CPQ030 and MUR3030CT, the SBR30U30CT uniquely combines ultra-low VF, soft switching, and certified avalanche energy - making it optimal for thermally constrained, inductively loaded, high-efficiency 30V systems where reliability under transient stress is non-negotiable.
Availability
SBR30U30CT is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, server VRM output stages, and motor drive freewheeling circuits requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for SBR30U30CT 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 US.
The SBR® Super Barrier Rectifier product line targets high-efficiency, high-reliability power conversion in industrial, computing, and automotive applications where low VF, high-temperature stability, and avalanche ruggedness are critical system requirements.
FAQ
What is the thermal resistance from junction to case (RθJC) for SBR30U30CT?
The junction-to-case thermal resistance is 2°C/W per diode element, measured with the device mounted on a black aluminum heatsink (45mm × 20mm × 12mm). This value is critical for calculating maximum allowable case temperature when operating at 30A average current, and confirms direct heatsink mounting is necessary to maintain TJ ≤ 150°C.
Does SBR30U30CT have a specified reverse recovery time (trr)?
No - the SBR30U30CT does not specify reverse recovery time because its patented super barrier structure eliminates conventional PN-junction reverse recovery. Instead, it exhibits soft, fast switching with negligible stored charge (Qrr ≈ 0), confirmed by absence of trr in all electrical characteristics tables and waveform validation in Diodes' application notes.
Can SBR30U30CT be used in place of a standard Schottky rectifier like SB3030CT?
Yes, but with important distinctions: SBR30U30CT offers lower VF and superior avalanche capability versus SB3030CT, yet shares identical TO-220AB pinout and common-cathode configuration. However, its higher leakage at 125°C (100mA max vs. ~50mA for SB3030CT) requires verification in high-temp, low-power standby circuits.
Is the mounting tab (Pin 2) electrically isolated from the heatsink?
No - the mounting tab is the common cathode terminal (Pin 2) and is electrically conductive. When mounted to a heatsink, electrical isolation (e.g., mica washer or sil-pad) is mandatory unless the heatsink is floating or intentionally tied to the cathode net. Failure to insulate risks short-circuiting the output rail to chassis ground.
SBR30U30CT 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):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 540 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1.5 mA @ 30 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBR30U30CT FAQ
1.How can I place an order for SBR30U30CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR30U30CT 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 SBR30U30CT reliable?
The price and inventory of SBR30U30CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR30U30CT is usually 5 days.
3.What payment methods are accepted for SBR30U30CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR30U30CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR30U30CT?
SBR30U30CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR30U30CT 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 SBR30U30CT?
For technical support, including SBR30U30CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR30U30CT requirements.
6.How does Aetrix verify that SBR30U30CT is sourced from the original manufacturer or authorized distributors?
All SBR30U30CT 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 SBR30U30CT meets industry standards.
7.What is the process for return or replacement of SBR30U30CT?
All SBR30U30CT units undergo pre-shipment inspection (PSI). If there is an issue with SBR30U30CT, 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 SBR30U30CT part is unused and in its original packaging.
Return procedure for SBR30U30CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR30U30CT Tags
-
BAV99-7-F
Diodes Incorporated
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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
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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
-
BAV99WT1G
onsemi
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