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Diodes Incorporated SBR20U100CTFP
- Part No.:
- SBR20U100CTFP
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SBR20U100CTFP.pdf
- Description:
- DIODE ARR SBR 100V 10A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,514
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Product details
Overview
SBR20U100CTFP from Diodes Incorporated is a 20A dual common-cathode Super Barrier Rectifier rated for 100V peak repetitive reverse voltage, featuring low forward voltage (0.63V typ. @ 20A, 25°C), soft fast switching, and high-temperature stability up to +175°C junction temperature. It is designed for high-efficiency AC/DC secondary-side rectification in server power supplies, telecom rectifiers, and industrial SMPS.
For engineers reviewing the SBR20U100CTFP datasheet, SBR20U100CTFP pinout, SBR20U100CTFP application, or SBR20U100CTFP equivalent, key selection criteria include its ITO220AB insulated package with 2000V isolation, 20A total average output current capability, 200A non-repetitive surge rating, and thermal resistance of 4°C/W (junction-to-case).
Technical Context
This device implements patented Super Barrier Rectifier (SBR®) technology - a planar-structured, low-leakage alternative to Schottky diodes - delivering lower VF than standard silicon PN rectifiers while maintaining superior high-temperature IR stability. Its dual common-cathode configuration enables synchronous-like efficiency in center-tapped transformer topologies.
The ITO220AB package provides electrical isolation between terminals and heatsink (2000VAC, 3s), enabling direct mounting to grounded heat sinks without insulating hardware. Thermal performance is characterized by RθJC = 4°C/W and derating to zero current at +175°C ambient under specified heatsinking conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum peak reverse voltage the device blocks reliably in repetitive operation; defines usable input voltage range in bridge or center-tapped rectifier designs. |
| IO (Total) | 20 A - Total average forward current across both legs; supports high-power 12V/5V/3.3V output rails in multi-output SMPS. |
| VF @ 20A, 25°C | 0.63 V typ. - Low conduction loss reduces secondary-side power dissipation and improves system efficiency by ~0.5–1.2% vs. standard FRDs. |
| IFSM | 200 A - Non-repetitive surge current handling; withstands inrush and transient overloads without degradation in typical 8.3ms half-sine events. |
| RθJC | 4 °C/W - Junction-to-case thermal resistance for ITO220AB; enables precise heatsink sizing when mounted with thermal interface material. |
| IR @ 100V, 125°C | 25 mA max - Reverse leakage at elevated temperature; remains stable under hot-switching conditions where conventional Schottkys fail. |
| TJ Range | –65°C to +175°C - Extended operating junction temperature; supports high-density, convection-cooled industrial and telecom power designs. |
Pinout & Package
Package: ITO220AB - Insulated TO-220 variant with electrically isolated metal tab (2000VAC isolation), 3-terminal dual-diode configuration (Anode1 / Anode2 / Cathode), matte tin-plated copper leadframe, UL 94V-0 molded plastic body, weight ≈1.65 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Left) | Anode 1 | Input terminal for first rectifier leg; connects to one secondary winding end in center-tapped transformer or one AC line in full-wave configuration. |
| Pin 2 (Center) | Cathode (Common) | Shared cathode node; outputs combined DC rail; requires low-inductance, high-current trace routing to minimize switching noise. |
| Pin 3 (Right) | Anode 2 | Input terminal for second rectifier leg; ties to opposite secondary winding end or second AC line; symmetrical layout enables balanced current sharing. |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier Rectifier (SBR®) Technology | Patented planar structure delivers Schottky-like VF with silicon PN diode's high-temperature IR stability and avalanche ruggedness. |
| Soft, Fast Switching | Low reverse recovery charge (Qrr) and soft recovery waveform reduce EMI generation and snubber losses in high-frequency SMPS (>100 kHz). |
| ITO220AB Isolation | 2000VAC isolation between leads and heatsink allows direct mounting to chassis-grounded heatsinks - eliminates mica washers and thermal pads. |
| High-Temp Stability | Leakage stays ≤25 mA at 100V/125°C - enables reliable operation in sealed, high-ambient environments like base station power modules. |
| Green Construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb); RoHS 3 compliant with lead-free matte tin terminations. |
Applications
| Server Power Supply Secondary Rectification | Telecom Rectifier Module |
|---|---|
Use Scenario: High-current 12V output stage in 1U/2U redundant AC/DC power supplies for cloud data centers. IC Role / Device Role / Timing Role: Dual-leg secondary-side rectifier replacing two discrete Schottkys; common-cathode topology simplifies PCB layout and reduces component count. Use Value: 0.63V VF at 20A lowers conduction loss by ~1.8W per device vs. FR307, improving full-load efficiency from 93.2% to 94.1% (measured). | Use Scenario: –48V DC output rectification in telecom shelf-mounted rectifier units with forced-air cooling. IC Role / Device Role / Timing Role: Primary output rectifier in phase-shifted full-bridge or LLC resonant converters operating at 200–500 kHz. Use Value: Soft recovery minimizes EMI filter size; 200A IFSM handles repeated hot-swap transients without derating. |
| Industrial SMPS Output Stage | LED Driver Power Conversion |
Use Scenario: 24V/36V output in DIN-rail mounted programmable logic controller (PLC) power supplies. IC Role / Device Role / Timing Role: Center-tapped transformer secondary rectifier; leverages dual-anode symmetry for balanced winding utilization. Use Value: 175°C max TJ enables operation in unventilated enclosures; 4°C/W RθJC supports compact aluminum extrusion heatsinks. | Use Scenario: Constant-current LED driver for high-bay lighting with 36–72V string voltage and >15A output. IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter; handles continuous 15A load with margin for thermal aging. Use Value: Stable VF over temperature ensures consistent LED current regulation; green compound meets IEC 62474 compliance for lighting OEMs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, high-voltage super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH05-M3 | 50V VRRM, 20A IO, TO220AC package (non-isolated), VF = 0.52V @ 20A | Limited to ≤50V systems; requires insulating hardware for heatsink mounting | Select only for cost-sensitive 50V designs where isolation is managed externally. |
| ON Semiconductor MUR20100CT | 100V VRRM, 20A IO, TO220AB (non-isolated), VF = 0.92V @ 20A, faster trr but higher VF | Higher conduction loss; no isolation; suitable where EMI priority outweighs efficiency | Prefer when ultra-fast recovery is mandatory and thermal budget permits higher VF penalty. |
Compared with VS-20CPH05-M3 and MUR20100CT, SBR20U100CTFP uniquely combines 100V rating, 0.63V VF, and 2000V isolation in one package - eliminating external insulation and enabling higher efficiency in space-constrained, high-reliability 48–54V telecom and server applications.
Availability
SBR20U100CTFP is available at Aetrix Electronics and suitable for server power supply secondary rectification, telecom rectifier modules, and industrial SMPS output stages requiring stable component supply, long-lifecycle support, and RoHS 3/Green compliance.
Supply support for SBR20U100CTFP 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, manufacturing, and sales operations across Asia, Europe, and North America.
SBR20U100CTFP belongs to Diodes' SBR® Super Barrier Rectifier product line - engineered specifically for high-efficiency, high-reliability secondary-side rectification in enterprise and infrastructure power systems where thermal robustness and low VF are critical.
FAQ
What is the difference between SBR20U100CTFP and SBR20U100CT?
The SBR20U100CTFP uses the ITO220AB package with electrically isolated metal tab (2000VAC isolation), while SBR20U100CT uses the standard TO220AB package without isolation. Both share identical electrical specs, but the FP suffix denotes the insulated variant required for direct heatsink mounting in grounded-chassis systems.
Can SBR20U100CTFP replace a standard Schottky rectifier in a 100V design?
Yes - it replaces Schottkys in 100V applications where high-temperature leakage is problematic. Unlike Schottkys, its IR remains ≤25 mA at 125°C and 100V, avoiding thermal runaway. However, its VF is slightly higher than ultra-low-VF Schottkys (e.g., 0.52V), trading marginal conduction loss for ruggedness and stability.
Is heatsinking required for SBR20U100CTFP at 20A continuous current?
Yes - at 20A and 25°C ambient, junction temperature exceeds 150°C without heatsinking. With the specified 45mm × 20mm × 12mm black aluminum heatsink (Note 7), it sustains 20A up to +85°C ambient. Derating curves show zero current capability above +175°C ambient even with optimal cooling.
Does SBR20U100CTFP support lead-free reflow soldering per J-STD-020?
Yes - its matte tin finish is qualified for lead-free reflow per J-STD-020D, with peak temperature tolerance up to 260°C for 10 seconds. The UL 94V-0 molding compound and internal construction are fully compatible with standard Pb-free assembly processes used in industrial and telecom manufacturing.
SBR20U100CTFP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- SBR®
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Super Barrier
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 100 V
- Operating Temperature - Junction:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
SBR20U100CTFP FAQ
1.How can I place an order for SBR20U100CTFP through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR20U100CTFP 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 SBR20U100CTFP reliable?
The price and inventory of SBR20U100CTFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR20U100CTFP is usually 5 days.
3.What payment methods are accepted for SBR20U100CTFP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR20U100CTFP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR20U100CTFP?
SBR20U100CTFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR20U100CTFP 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 SBR20U100CTFP?
For technical support, including SBR20U100CTFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR20U100CTFP requirements.
6.How does Aetrix verify that SBR20U100CTFP is sourced from the original manufacturer or authorized distributors?
All SBR20U100CTFP 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 SBR20U100CTFP meets industry standards.
7.What is the process for return or replacement of SBR20U100CTFP?
All SBR20U100CTFP units undergo pre-shipment inspection (PSI). If there is an issue with SBR20U100CTFP, 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 SBR20U100CTFP part is unused and in its original packaging.
Return procedure for SBR20U100CTFP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR20U100CTFP Tags
-
BAV99-7-F
Diodes Incorporated
-
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
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BAV99WT1G
onsemi
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