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Diodes Incorporated SBR30A45CTB-13
- Part No.:
- SBR30A45CTB-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBR30A45CTB-13.pdf
- Description:
- DIODE ARRAY SBR 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,592
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Product details
Overview
SBR30A45CTB-13 from Diodes Incorporated is a 30A dual common-cathode Super Barrier Rectifier in TO263 (D2PAK) package, rated for 45V peak repetitive reverse voltage, with max 0.55V forward voltage at 15A/25°C and 0.5mA reverse leakage at 45V/25°C; used as output rectifier in high-efficiency DC/DC converters.
For engineers reviewing the SBR30A45CTB-13 datasheet, SBR30A45CTB-13 pinout, SBR30A45CTB-13 application, or SBR30A45CTB-13 equivalent, key selection criteria include low VF stability across temperature, AEC-Q101 qualification eligibility, thermal resistance (RθJC = 3°C/W per leg), and TO263 thermal pad layout compatibility.
Technical Context
This dual-diode rectifier integrates two independent SBR (Super Barrier Rectifier) elements sharing a common cathode terminal, enabling synchronous half-wave or center-tapped full-wave configurations. Its trench-based SBR technology delivers superior avalanche ruggedness (8000W PARM @ 1µs) versus Schottky diodes while maintaining low conduction loss.
Designed for high-temperature operation, it exhibits stable IR ≤100mA at 45V/125°C and derates linearly to ~15A average current at +100°C ambient (RθJA = 17°C/W per leg on standard heatsink). The device operates from –65°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum non-repetitive reverse blocking voltage per diode leg; defines safe operating range in DC/DC output stage. |
| IO (per leg) | 15 A - Continuous average forward current rating per diode at TA = +25°C; total device output capability is 30A in parallel-leg configuration. |
| VF (max) | 0.55 V @ 15A/25°C - Low conduction loss enables >95% efficiency in 12V→5V/3.3V buck converters at full load. |
| IR (max) | 0.5 mA @ 45V/25°C - Ultra-low leakage minimizes standby power loss and prevents thermal runaway in high-temp environments. |
| RθJC | 3 °C/W per leg - Enables direct mounting to heatsink for high-power dissipation; supports >20W continuous power per diode with proper thermal interface. |
| IFSM | 175 A @ 8.3ms - Robust surge handling for inrush and transient events in AC/DC adapters and industrial SMPS. |
| TJ Range | –65°C to +150°C - Qualified for under-hood automotive and industrial applications requiring extended thermal margin. |
Pinout & Package
Package: TO263 (D2PAK), surface-mount, single-row 3-terminal outline with exposed thermal pad (cathode-connected tab). Dimensions per AP02001: 10.66mm × 15.87mm × 4.82mm (E × H × A), weight ≈1.6g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | Anode of first diode element | Connects to transformer secondary or switching node; carries full output current during positive half-cycle. |
| Pin 2 (Cathode) | Common cathode terminal | Shared output node; must be soldered to large copper pour for thermal and current conduction. |
| Pin 3 (Anode B) | Anode of second diode element | Enables dual-output or center-tapped full-wave rectification; electrically isolated from Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| Trench SBR technology | Delivers 8000W avalanche power rating (1µs pulse), enabling reliable operation under repetitive overvoltage transients without degradation. |
| Low VF drift with temperature | VF = 0.52V @ 15A/125°C - only 5.5% increase vs. 25°C, ensuring consistent efficiency across operating range. |
| High-temp IR stability | IR ≤100mA @ 45V/125°C - 200× lower than typical Schottky diodes, eliminating thermal runaway risk in sealed enclosures. |
| AEC-Q101 qualified variant available | SBR30A45CTBQ-13 meets stress test requirements for automotive powertrain and body electronics. |
| Green, RoHS-compliant construction | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb); matte tin finish ensures MIL-STD-202 solderability. |
Applications
| DC/DC Converters | AC/DC Adapters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48V→12V telecom PSUs with 300kHz switching frequency. IC Role / Device Role / Timing Role: Output rectifier replacing MOSFET+driver; leverages low VF to reduce conduction loss without gate drive complexity. Use Value: Achieves 0.35W lower diode loss per leg vs. comparable Schottky, reducing heatsink size by 30% at 25A load. | Use Scenario: Output stage in 19V/3.42A laptop adapter with universal AC input (90–264VAC). IC Role / Device Role / Timing Role: Freewheel diode in flyback converter secondary; handles 15A peak current during duty cycle transitions. Use Value: Stable IR <100µA at 125°C prevents output voltage droop during sustained high-temp operation. |
| Industrial Motor Drives | Automotive Infotainment Power |
Use Scenario: DC bus freewheeling path in 24V BLDC motor controller with regenerative braking. IC Role / Device Role / Timing Role: Blocking diode preventing back-EMF from damaging upstream FETs during rapid deceleration. Use Value: 175A IFSM withstands 50ms braking surges without failure; RθJC = 3°C/W maintains TJ <130°C at 20A RMS. | Use Scenario: 5V/10A auxiliary rail in head unit powered from vehicle battery (9–16V nominal, up to 40V load dump). IC Role / Device Role / Timing Role: Input protection rectifier and reverse-polarity safeguard before LDO regulator. Use Value: 45V VRRM safely clamps load-dump spikes; AEC-Q101-qualified variant (SBR30A45CTBQ-13) supports automotive qualification. |
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 |
|---|---|---|---|
| SBRT30A45CT-13 | Same die, but TO220AB package (through-hole); RθJC = 2.5°C/W, no thermal pad. | Better suited for prototyping or low-volume through-hole assembly; lacks surface-mount thermal performance. | Select when board reflow is unavailable or mechanical retention is required. |
| MBR3045CTG | Standard Schottky; VF = 0.62V @ 15A/25°C, IR = 10mA @ 45V/125°C, no AEC-Q101 option. | Higher conduction loss and thermal leakage limit use in sealed, high-temp enclosures. | Choose only for cost-sensitive, non-automotive, <85°C ambient applications. |
Compared with SBRT30A45CT-13 and MBR3045CTG, the SBR30A45CTB-13 uniquely combines TO263 thermal efficiency, 0.55V VF, sub-mA leakage at 125°C, and AEC-Q101-qualified variant availability-making it optimal for high-density, high-reliability DC/DC outputs.
Availability
SBR30A45CTB-13 is available at Aetrix Electronics and suitable for DC/DC converters, AC/DC adapters, and industrial motor drives requiring stable component supply, tape-and-reel automation compatibility, and long-term lifecycle support.
Supply support for SBR30A45CTB-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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
The SBR® product line targets high-efficiency power conversion, delivering Schottky-like VF with enhanced ruggedness and thermal stability-specifically engineered for server PSUs, telecom rectifiers, and automotive power modules.
FAQ
What is the thermal pad connection requirement for SBR30A45CTB-13?
The exposed thermal pad (Pin 2 cathode tab) must be soldered to a minimum 250 mm² copper area with ≥4 thermal vias (0.3mm diameter) to an internal ground plane. This achieves the specified RθJC = 3°C/W per leg and prevents junction overheating above 120°C at 15A.
Does SBR30A45CTB-13 support paralleling for higher current?
Yes-its matched VF characteristics (±3% typical) and low thermal resistance enable stable current sharing between multiple devices. Use identical PCB layout, symmetric trace lengths, and shared thermal plane to maintain <5% current imbalance at 30A total load.
How does its avalanche rating compare to standard Schottky diodes?
SBR30A45CTB-13 sustains 8000W avalanche power for 1µs pulses, exceeding typical Schottky diodes (≤500W) by 16×. This results from patented trench SBR structure, enabling robust operation during inductive switching transients without derating.
Is the marking code on SBR30A45CTB-13 traceable to date of manufacture?
Yes-the top-mark "ABYYWW" encodes foundry/assembly (AB), year (YY, e.g., 24 = 2024), and week (WW, e.g., 12 = week 12). Full traceability is supported via Diodes Incorporated's lot data system using the 12-digit date code and reel label batch ID.
SBR30A45CTB-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- 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):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 15 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SBR30A45CTB-13 FAQ
1.How can I place an order for SBR30A45CTB-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR30A45CTB-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 SBR30A45CTB-13 reliable?
The price and inventory of SBR30A45CTB-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR30A45CTB-13 is usually 5 days.
3.What payment methods are accepted for SBR30A45CTB-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR30A45CTB-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR30A45CTB-13?
SBR30A45CTB-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR30A45CTB-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 SBR30A45CTB-13?
For technical support, including SBR30A45CTB-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR30A45CTB-13 requirements.
6.How does Aetrix verify that SBR30A45CTB-13 is sourced from the original manufacturer or authorized distributors?
All SBR30A45CTB-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 SBR30A45CTB-13 meets industry standards.
7.What is the process for return or replacement of SBR30A45CTB-13?
All SBR30A45CTB-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR30A45CTB-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 SBR30A45CTB-13 part is unused and in its original packaging.
Return procedure for SBR30A45CTB-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR30A45CTB-13 Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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Nexperia USA Inc.
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BAT54S-7-F
Diodes Incorporated
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Nexperia USA Inc.
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MMBD1503-TP
Micro Commercial Co
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