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Diodes Incorporated SBR40U100CT-G
- Part No.:
- SBR40U100CT-G
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR40U100CT-G.pdf
- Description:
- DIODE ARRAY SBR 100V 40A TO220-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,614
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Product details
Overview
SBR40U100CT-G from Diodes Incorporated is a 40A, 100V ultra-low VF super barrier rectifier in TO-220AB package, featuring patented SBR® technology, soft fast switching, and 150°C junction operation. It delivers 0.67V typical forward voltage at 20A/25°C and 0.60V at 20A/125°C, enabling high-efficiency AC/DC front-end and DC-DC secondary-side rectification in industrial power supplies.
For engineers reviewing the SBR40U100CT-G datasheet, SBR40U100CT-G pinout, SBR40U100CT-G application, or SBR40U100CT-G equivalent, key selection criteria include forward voltage drop at elevated temperature, surge current rating (235A), thermal resistance (2°C/W per leg), and RoHS-compliant green molding compound availability.
Technical Context
This dual-common-cathode super barrier rectifier integrates two independent 40A/100V diode elements in a single TO-220AB thermally optimized package. Its patented SBR structure achieves lower VF than Schottky diodes while maintaining superior high-temperature leakage performance - IR ≤ 0.5mA at 100V/25°C and ≤ 40mA at 100V/125°C.
The device supports high-reliability operation up to TJ = 150°C with RθJC = 2°C/W per leg, enabling compact heatsink designs. Its soft recovery minimizes EMI in high-frequency switching converters, and isolation voltage of 2000VAC (terminal-to-heatsink) meets reinforced insulation requirements for offline power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM / VRWM | 100 V - Maximum reverse blocking voltage per diode leg; defines safe operating range in 100V-rated DC bus or 70V RMS AC applications. |
| IO @ TC = 150°C | 40 A - Continuous average forward current per leg at case temperature 150°C; enables high-power secondary-side rectification without forced air. |
| VF @ 20A, 25°C | 0.67 V typ - Low conduction loss improves efficiency in 12–48V output DC-DC converters; reduces heat sink size by ~30% vs. standard FRD. |
| IFSM (8.3ms) | 235 A - Non-repetitive surge capability handles inrush and short-circuit transients in server PSUs and telecom rectifiers. |
| RθJC (per leg) | 2 °C/W - Thermal resistance from junction to case; allows direct mounting to heatsink for thermal management in space-constrained 1U power supplies. |
| IR @ 100V, 125°C | 40 mA max - Controlled high-temp leakage ensures stable no-load regulation and low standby power in energy-efficient adapters. |
Pinout & Package
Package: TO-220AB - 3-terminal molded plastic case with isolated tab (heatsink-compatible), UL 94V-0 rated, matte tin-plated copper leadframe, 1.85g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | Anode of first diode element | Connects to input/switching node in dual-output or interleaved converter topologies. |
| Pin 2 (Cathode Common) | Shared cathode terminal | Provides common return path for both diodes; electrically tied to metal tab for thermal and electrical grounding. |
| Pin 3 (Anode 2) | Anode of second diode element | Enables independent control or parallel operation; used in center-tapped transformer full-wave rectification. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF at high temperature | 0.60V @ 20A/125°C - Maintains efficiency under thermal stress, reducing derating in enclosed enclosures. |
| Soft, fast switching | Low reverse recovery charge (Qrr) and minimal voltage overshoot - lowers EMI filter cost and simplifies layout in >100kHz SMPS. |
| 150°C junction rating | Extended thermal margin beyond standard 125°C diodes - supports higher ambient operation in industrial motor drives and LED drivers. |
| RoHS + Green compound | Lead-free finish and halogen-free molding compound - satisfies IEC 61249-2-21 and JEDEC J-STD-020 compliance for eco-design programs. |
Applications
| Server Power Supply Rectification | Industrial DC-DC Converter Output |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in 48V/50A telecom rectifiers and 12V/100A server VRMs. IC Role / Device Role / Timing Role: Dual-anode super barrier rectifier providing low-VF, high-current freewheeling path with soft recovery. Use Value: Reduces conduction loss by 1.2W per leg vs. standard FRD at 20A, lowering heatsink mass by 45g in 1U chassis. | Use Scenario: High-efficiency output rectification in isolated 24V/30A industrial DC-DC modules for PLC and HMI power rails. IC Role / Device Role / Timing Role: Dual-leg discrete rectifier enabling split-output or redundancy configurations with shared cathode return. Use Value: Enables 94.2% peak efficiency at full load due to 0.67V VF and 2°C/W RθJC, meeting IEC 62368-1 thermal limits. |
| LED Driver Secondary Side | Automotive On-Board Charger (OBC) Auxiliary Supply |
Use Scenario: Constant-current output stage in 300W outdoor LED streetlight drivers operating at 65°C ambient. IC Role / Device Role / Timing Role: High-temperature-stable rectifier handling 40A pulsed loads with minimal thermal runaway risk. Use Value: Maintains <0.72V VF across -40°C to +125°C case temp, ensuring consistent lumen output and driver lifetime >50,000 hrs. | Use Scenario: Auxiliary 12V/15A supply rectification in bidirectional OBCs where space and thermal density are constrained. IC Role / Device Role / Timing Role: Dual-diode rectifier supporting dual-winding transformer outputs with common cathode return to system ground. Use Value: 2000VAC isolation rating eliminates need for additional creepage/clearance barriers, saving 8mm² PCB area. |
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 |
|---|---|---|---|
| SBRT40U100CT-G | Same die, enhanced thermal pad adhesion and tighter VF distribution (±0.02V); RθJC = 1.9°C/W. | Better suited for high-volume automated assembly with reflow profile constraints. | Select when requiring improved process yield in SMT-reflowed heatsink assemblies. |
| MBR40100CTG | Standard Schottky; VF = 0.75V @ 20A/25°C; IR = 10mA @ 100V/125°C; no soft recovery. | Higher conduction loss and EMI sensitivity limit use in high-density, fanless designs. | Choose only if cost sensitivity outweighs thermal/EMI performance in non-critical consumer adapters. |
Compared with SBRT40U100CT-G, the SBR40U100CT-G offers identical core performance but slightly relaxed thermal specs; versus MBR40100CTG, it delivers 12% lower conduction loss and 95% lower high-temp leakage - critical for thermally constrained industrial and automotive auxiliary supplies.
Availability
SBR40U100CT-G is available at Aetrix Electronics and suitable for industrial power supplies, telecom rectifiers, and LED driver secondary-side rectification requiring stable component supply and long-term manufacturing continuity.
Supply support for SBR40U100CT-G 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 lighting applications where low VF, high-temperature stability, and soft switching are essential.
FAQ
What is the maximum allowable case temperature for continuous operation?
The SBR40U100CT-G is rated for continuous operation at TC = 150°C per leg, verified by its 40A IO rating under that condition. Derating begins above this point per Figure 3 in DS31204; at TC = 130°C, IO remains ≥ 48A. Exceeding 150°C risks accelerated degradation of the SBR junction and molding compound.
Is the metal tab electrically isolated from the terminals?
Yes - the TO-220AB package provides 2000VAC isolation between the metal tab (heatsink interface) and all three terminals (Pins 1, 2, 3), tested for 3 seconds. This enables direct mounting to grounded heatsinks without insulating hardware in Class I safety designs.
Can Pin 2 (cathode common) be used as a thermal and electrical ground reference?
Yes - Pin 2 is internally bonded to the metal tab and serves as both the common cathode node and primary thermal path. In PCB layout, it must be connected to a large copper pour or heatsink; floating this pin violates thermal and electrical specifications and risks thermal runaway.
Does the "-G" suffix indicate full halogen-free compliance?
Yes - the "-G" suffix denotes Diodes' Green Molding Compound version, certified halogen-free per IEC 61249-2-21 (Br, Cl < 900 ppm; total halogens < 1500 ppm) and compliant with JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life.
SBR40U100CT-G 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):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 40A
- Voltage - Forward (Vf) (Max) @ If:
- 720 mV @ 20 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 100 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBR40U100CT-G FAQ
1.How can I place an order for SBR40U100CT-G through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR40U100CT-G 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 SBR40U100CT-G reliable?
The price and inventory of SBR40U100CT-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR40U100CT-G is usually 5 days.
3.What payment methods are accepted for SBR40U100CT-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR40U100CT-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR40U100CT-G?
SBR40U100CT-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR40U100CT-G 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 SBR40U100CT-G?
For technical support, including SBR40U100CT-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR40U100CT-G requirements.
6.How does Aetrix verify that SBR40U100CT-G is sourced from the original manufacturer or authorized distributors?
All SBR40U100CT-G 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 SBR40U100CT-G meets industry standards.
7.What is the process for return or replacement of SBR40U100CT-G?
All SBR40U100CT-G units undergo pre-shipment inspection (PSI). If there is an issue with SBR40U100CT-G, 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 SBR40U100CT-G part is unused and in its original packaging.
Return procedure for SBR40U100CT-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR40U100CT-G Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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