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Diodes Incorporated SBR30A45CTBQ-13
- Part No.:
- SBR30A45CTBQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBR30A45CTBQ-13.pdf
- Description:
- DIODE ARRAY SBR 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:661
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Product details
Overview
SBR30A45CTBQ-13 from Diodes Incorporated is a 30A, 45V Super Barrier Rectifier (SBR®) diode in TO263AB (D2PAK) package, featuring 0.55V max forward voltage at 15A/25°C, 0.5mA max reverse leakage at 45V/25°C, and AEC-Q101 qualification for automotive use as polarity protection and recirculation diode in 12V/24V power rails.
For engineers reviewing the SBR30A45CTBQ-13 datasheet, SBR30A45CTBQ-13 pinout, SBR30A45CTBQ-13 application, or SBR30A45CTBQ-13 equivalent, key selection criteria include avalanche energy rating (135mJ), thermal resistance junction-to-case (1.5°C/W), high-temperature leakage performance (40mA @ 125°C), and RoHS-compliant green packaging with matte tin terminals.
Technical Context
This SBR device uses patented super barrier technology to achieve lower forward voltage than Schottky diodes while maintaining superior avalanche ruggedness-enabling reliable operation under repetitive surge conditions (175A IFSM) and transient overvoltage events. Its 35ns reverse recovery time supports high-frequency switching in DC-DC converters and motor control freewheeling paths.
The dual-die configuration in a common-cathode TO263AB package delivers symmetrical 30A per leg with shared thermal path to the exposed copper tab. Junction temperature range of –55°C to +150°C and 100% avalanche testing ensure robustness in under-hood automotive environments where thermal cycling and load dump transients are routine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum blocking voltage for 12V/24V automotive systems with load dump margin |
| IO (per leg) | 30 A - Continuous rectified current per anode leg, enabling high-power battery protection |
| VF max | 0.55 V @ 15A/25°C - Ultra-low conduction loss improves efficiency and reduces heatsink requirements |
| IR max | 0.5 mA @ 45V/25°C - Low leakage preserves battery standby life and prevents thermal runaway |
| EAS | 135 mJ @ 12A/10mH - Confirmed single-pulse avalanche energy withstand capability for inductive kick suppression |
| RθJC | 1.5 °C/W - Low thermal resistance enables direct mounting to PCB copper pour or heatsink for 30A operation |
| tRR | 35 ns - Fast recovery minimizes switching losses in synchronous rectification and PWM circuits |
Pinout & Package
Package: TO263AB (D2PAK), surface-mount with exposed copper thermal pad on underside and three external terminals (Anode 1, Anode 2, Cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Pin 1) | Input terminal for first rectifier leg | Accepts up to 30A continuous forward current; electrically isolated from Anode 2 |
| Anode 2 (Pin 2) | Input terminal for second rectifier leg | Independent 30A path; enables dual-input redundancy or parallel input routing |
| Cathode (Tab/Pin 3) | Common output node | Exposed metal tab serves as cathode and primary thermal interface; must be soldered to large copper area |
Key Features
| Feature | Design Value |
|---|---|
| Patented SBR technology | Combines Schottky-like VF with PN-junction avalanche ruggedness-no trade-off between efficiency and reliability |
| 100% avalanche tested | Each unit validated to 135mJ EAS ensures field failure immunity in inductive load switching |
| AEC-Q101 qualified | Validated for automotive-grade temperature cycling, humidity, and mechanical shock per IATF 16949 process controls |
| Green molding compound | UL 94V-0 rated, halogen/antimony-free (<900ppm Br+Cl, <1000ppm Sb) meets global environmental compliance mandates |
Applications
| Automotive Polarity Protection | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Reverse-battery connection protection in vehicle infotainment head units and ADAS ECUs. IC Role / Device Role / Timing Role: Common-cathode dual-anode rectifier placed between battery input and downstream regulator ICs. Use Value: Prevents catastrophic damage during service installation errors while sustaining 30A peak load currents without derating. |
Use Scenario: Secondary-side rectification in 48V–12V buck converters for body electronics power distribution. IC Role / Device Role / Timing Role: High-efficiency freewheeling diode replacing synchronous MOSFETs where gate drive complexity is prohibitive. Use Value: 0.55V VF reduces conduction loss by >30% vs. standard FRDs, lowering thermal stress on compact PCB layouts. |
| Motor Control Recirculation | Industrial Power Supply OR-ing |
Use Scenario: Flyback path for brushed DC motors in power seat and window lift modules. IC Role / Device Role / Timing Role: Dual-leg SBR clamps inductive kick from H-bridge outputs during PWM commutation. Use Value: 35ns tRR and 175A IFSM handle rapid current reversal without oscillation or voltage overshoot. |
Use Scenario: Redundant 24V input OR-ing in programmable logic controllers with dual power supplies. IC Role / Device Role / Timing Role: Common-cathode configuration allows independent anode inputs feeding shared 24V rail. Use Value: Low IR (0.5mA @ 25°C) prevents backfeed leakage between supplies, preserving system-level fault isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBRT30A45CTBQ-13 | Same die, identical electrical specs, but with enhanced moisture sensitivity level (MSL 2a vs. MSL 1) | Requires baking before reflow if stored >1 year; unsuitable for long-term warehouse stock without dry pack | Select only when MSL 2a handling infrastructure is available; otherwise prefer SBR30A45CTBQ-13 for simplified assembly. |
| MBR3045CTG | Schottky rectifier with higher VF (0.75V typ), no avalanche rating, and lower IFSM (120A) | Lacks AEC-Q101 qualification and fails under repetitive avalanche stress in motor control | Acceptable only in non-automotive, low-temp, non-inductive applications where cost outweighs ruggedness. |
Compared with SBRT30A45CTBQ-13 and MBR3045CTG, the SBR30A45CTBQ-13 uniquely balances ultra-low VF, certified avalanche energy, and MSL 1 handling-making it the sole choice for AEC-Q101-compliant automotive power stages requiring zero bake-time logistics and field-proven surge resilience.
Availability
SBR30A45CTBQ-13 is available at Aetrix Electronics and suitable for automotive battery protection, motor recirculation, DC-DC converter rectification, and industrial OR-ing applications requiring stable component supply across extended product lifecycles.
Supply support for SBR30A45CTBQ-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, specializing in high-reliability power management and signal integrity solutions for automotive, industrial, and computing markets.
The SBR® product line was developed specifically to replace Schottky and fast recovery diodes in automotive power systems where simultaneous low VF, high surge tolerance, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum junction temperature for continuous operation?
The SBR30A45CTBQ-13 has a rated operating junction temperature range of –55°C to +150°C. For continuous 30A operation, thermal design must maintain TJ ≤ 150°C using the specified RθJC = 1.5°C/W and appropriate PCB copper area or heatsink. Derating curves in Figure 4 confirm 25A max at 100°C ambient with no heatsink.
Is this part suitable for synchronous rectification replacement?
Yes-the 0.55V VF max and 35ns tRR make it viable for replacing synchronous MOSFETs in medium-frequency (≤200kHz) DC-DC converters where gate drive complexity or cost is prohibitive. However, its fixed VF lacks the dynamic scaling of MOSFETs, so efficiency gains diminish above 10A load current.
Does the TO263AB package require thermal vias under the tab?
Yes-Diodes recommends ≥9 thermal vias (0.3mm diameter, 0.65mm pitch) connecting the exposed cathode tab to inner-layer ground or power planes. This achieves the stated RθJA = 16°C/W; omitting vias increases thermal resistance by up to 40%, risking premature thermal shutdown at full rated current.
How does the SBR technology differ from standard Schottky diodes?
SBR uses a modified epitaxial structure that introduces controlled minority carrier injection, yielding Schottky-like forward conduction but with PN-junction avalanche breakdown characteristics. This provides 135mJ EAS-over 3× higher than comparable Schottkys-and eliminates thermal runaway risk at high temperatures where Schottky leakage escalates exponentially.
SBR30A45CTBQ-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:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SBR30A45CTBQ-13 FAQ
1.How can I place an order for SBR30A45CTBQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR30A45CTBQ-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 SBR30A45CTBQ-13 reliable?
The price and inventory of SBR30A45CTBQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR30A45CTBQ-13 is usually 5 days.
3.What payment methods are accepted for SBR30A45CTBQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR30A45CTBQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR30A45CTBQ-13?
SBR30A45CTBQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR30A45CTBQ-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 SBR30A45CTBQ-13?
For technical support, including SBR30A45CTBQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR30A45CTBQ-13 requirements.
6.How does Aetrix verify that SBR30A45CTBQ-13 is sourced from the original manufacturer or authorized distributors?
All SBR30A45CTBQ-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 SBR30A45CTBQ-13 meets industry standards.
7.What is the process for return or replacement of SBR30A45CTBQ-13?
All SBR30A45CTBQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with SBR30A45CTBQ-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 SBR30A45CTBQ-13 part is unused and in its original packaging.
Return procedure for SBR30A45CTBQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR30A45CTBQ-13 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
onsemi
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