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Diodes Incorporated SBR40100CT
- Part No.:
- SBR40100CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR40100CT.pdf
- Description:
- DIODE ARRAY SBR 100V 20A TO220-3
- Quantity:
- Payment:
- Shipping:
Inventory:50
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Product details
Overview
SBR40100CT from Diodes Incorporated is a 40A dual common-cathode Super Barrier Rectifier rated for 100V peak reverse voltage, with typical forward voltage of 0.68V at 20A and 125°C, soft switching behavior, and TO-220AB package. It serves as a high-efficiency output rectifier in AC/DC power supplies and DC/DC converters for telecom and industrial equipment.
For engineers reviewing the SBR40100CT datasheet, SBR40100CT pinout, SBR40100CT application, or SBR40100CT equivalent, key selection criteria include forward voltage drop at elevated temperature, surge current capability (280A IFSM), thermal resistance (2°C/W junction-to-case), and RoHS-compliant green packaging options.
Technical Context
This device integrates two independent 20A rectifying elements in a single TO-220AB package with common cathode configuration, enabling synchronous or interleaved output stage designs. Its patented Super Barrier structure replaces traditional PN junctions with low-barrier metal-semiconductor interfaces to reduce VF while maintaining low leakage.
It operates across –65°C to +175°C junction temperature range and exhibits stable IR ≤10µA at 100V and 125°C. The soft recovery characteristic minimizes EMI in high-frequency switching topologies without requiring snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage per leg; defines safe operating limit in bridge or flyback secondary circuits. |
| IO (per leg) | 20 A - Continuous average forward current per diode element; total device rating is 40A with shared cathode thermal path. |
| VF @ 20A, 125°C | 0.68 V - Confirmed forward drop under real-world hot operating conditions; enables <1.4W conduction loss per leg at full load. |
| IFSM | 280 A - Non-repetitive surge current handling for 8.3ms half-sine; supports inrush tolerance in offline SMPS inputs. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance (TO-220AB); allows direct heatsink mounting for high-power density layouts. |
| IR @ 100V, 125°C | 10 µA - Reverse leakage at max rated voltage and high temperature; ensures minimal standby power loss in energy-sensitive systems. |
Pinout & Package
Package: TO-220AB - Insulated plastic case with copper leadframe, UL 94V-0 rated, matte tin-plated terminals solderable per MIL-STD-202. Mounting tab is electrically connected to cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Left) | Anode 1 | Input terminal for first rectifying element; isolated from other pins except via external PCB trace. |
| Pin 2 (Center) | Cathode (Common) | Shared cathode node for both diodes; electrically tied to metal tab; requires isolation from heatsink unless system ground referenced. |
| Pin 3 (Right) | Anode 2 | Input terminal for second rectifying element; fully independent from Anode 1 except through common cathode path. |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier Technology | Replaces conventional PN junction with engineered metal-semiconductor interface to achieve lower VF than Schottky and better high-temp stability than standard fast recovery diodes. |
| Soft Switching | Gradual reverse recovery reduces dV/dt-induced ringing and EMI, eliminating need for RC snubbers in 100–500kHz SMPS designs. |
| High-Temp Leakage Control | IR ≤10µA at 125°C/100V ensures <1mW standby dissipation per leg in always-on auxiliary supplies. |
| Green Packaging | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets IPC-1752 and EU Directive 2011/65/EU requirements. |
Applications
| Server Power Supply | Industrial Motor Drive |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48V input, 12V/20A output LLC resonant converter. IC Role / Device Role / Timing Role: Dual-anode rectifier delivering combined 40A output with shared cathode return path to minimize PCB copper loss. Use Value: 0.68V VF at 125°C reduces conduction loss by ~35% versus comparable 100V fast recovery diodes, improving full-load efficiency to >94%. | Use Scenario: DC bus freewheeling path in 3-phase IGBT inverter driving 7.5kW induction motor. IC Role / Device Role / Timing Role: Common-cathode clamp diode pair absorbing regenerative energy during IGBT turn-off transitions. Use Value: Soft recovery limits voltage overshoot to <120V during 200A/µs commutation, preventing IGBT overvoltage failure without snubber networks. |
| Telecom Rectifier Module | Renewable Energy Inverter |
Use Scenario: Input rectification stage in -48V telecom power system with N+1 redundancy architecture. IC Role / Device Role / Timing Role: High-current AC-to-DC conversion element handling 20A per leg with parallel thermal management via heatsink-mounted tab. Use Value: 2°C/W RθJC enables operation at 100% load up to 85°C ambient without derating, supporting compact 1U chassis designs. | Use Scenario: MPPT charge controller output stage converting variable PV array voltage (25–60V) to stable 48V battery bank. IC Role / Device Role / Timing Role: Bidirectional-capable rectifier used in synchronous buck topology with gate-driven MOSFETs. Use Value: Low 0.82V VF at 25°C and 20A ensures >98.5% conversion efficiency at light loads, critical for daily energy yield optimization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, medium-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS40H100CG | Same 100V VRRM and 40A total rating, but uses Schottky architecture with higher VF (0.85V @ 20A, 125°C) and no soft recovery. | Higher conduction loss and EMI sensitivity require additional filtering; unsuitable for un-snubbed high-dV/dt environments. | Select when lowest cost is priority and thermal margin exists for higher VF. |
| MBR40100CT | Legacy Schottky version with identical pinout and package, but VF = 0.92V @ 20A/125°C and IR = 100µA @ 125°C - 10× higher leakage. | Increased standby power and reduced high-temp reliability limit use in sealed or high-ambient enclosures. | Select only for legacy redesigns where SBR40100CT is unavailable and thermal design accommodates higher losses. |
Compared with STPS40H100CG and MBR40100CT, the SBR40100CT delivers superior thermal efficiency at elevated temperatures and inherent EMI reduction via soft switching - making it optimal for space-constrained, high-reliability telecom and industrial power systems where long-term stability matters.
Availability
SBR40100CT is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, telecom rectifier modules, and renewable energy inverters requiring stable component supply and long-lifecycle support.
Supply support for SBR40100CT 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, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The SBR® Super Barrier Rectifier product line targets high-efficiency power conversion applications where Schottky limitations (leakage, temperature instability) and fast recovery diode losses (switching, VF) must be simultaneously overcome.
FAQ
Is SBR40100CT pin-compatible with MBR40100CT?
Yes - both devices use identical TO-220AB package and common-cathode pinout (Anode1–Cathode–Anode2). However, SBR40100CT offers lower VF and softer recovery, so direct replacement improves efficiency and EMI performance without layout changes.
What is the maximum continuous junction temperature for SBR40100CT?
The absolute maximum junction temperature is +175°C, verified per datasheet Section 3 (Thermal Characteristics). Derating curves confirm 20A per leg remains valid up to 125°C case temperature when mounted on a heatsink with ≤2°C/W thermal resistance.
Does SBR40100CT require a heatsink in all applications?
A heatsink is required for operation above ~8A per leg at room ambient. With RθJC = 2°C/W and RθCA ≈ 20°C/W (no heatsink), junction rise exceeds safe limits at full 20A/leg. For 40A total output, a minimum 1.5K/W heatsink is recommended to maintain TJ < 125°C.
Can SBR40100CT be used in reverse polarity protection circuits?
No - its common-cathode configuration and lack of integrated control logic make it unsuitable for active reverse polarity protection. It functions only as a bidirectional-conducting rectifier; dedicated ideal diode controllers or P-channel MOSFET solutions are required for that function.
SBR40100CT 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):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 820 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 100 V
- Operating Temperature - Junction:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBR40100CT FAQ
1.How can I place an order for SBR40100CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR40100CT 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 SBR40100CT reliable?
The price and inventory of SBR40100CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR40100CT is usually 5 days.
3.What payment methods are accepted for SBR40100CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR40100CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR40100CT?
SBR40100CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR40100CT 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 SBR40100CT?
For technical support, including SBR40100CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR40100CT requirements.
6.How does Aetrix verify that SBR40100CT is sourced from the original manufacturer or authorized distributors?
All SBR40100CT 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 SBR40100CT meets industry standards.
7.What is the process for return or replacement of SBR40100CT?
All SBR40100CT units undergo pre-shipment inspection (PSI). If there is an issue with SBR40100CT, 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 SBR40100CT part is unused and in its original packaging.
Return procedure for SBR40100CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR40100CT 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.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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