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Diodes Incorporated SBR4045CTFP-G
- Part No.:
- SBR4045CTFP-G
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
SBR4045CTFP-G.pdf
- Description:
- DIODE ARRAY SBR 45V 20A ITO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
SBR4045CTFP-G from Diodes Incorporated is a 40A dual common-cathode Super Barrier Rectifier rated for 45V peak reverse voltage, with typical forward voltage of 0.50V at 20A and 125°C, soft fast switching capability, and packaged in ITO-220AB for enhanced thermal performance in high-current DC/DC output stages.
For engineers reviewing the SBR4045CTFP-G datasheet, SBR4045CTFP-G pinout, SBR4045CTFP-G application, or SBR4045CTFP-G equivalent, key selection criteria include forward voltage drop at elevated junction temperature, surge current rating (280A IFSM), thermal resistance (4°C/W RθJC), and RoHS-compliant green molding compound compliance.
Technical Context
This device integrates two independent rectifying elements sharing a common cathode terminal, enabling synchronous or parallel operation in center-tapped or dual-output topologies. Its patented Super Barrier structure delivers lower VF than Schottky diodes while maintaining higher temperature stability and reduced leakage versus standard PN junctions.
Designed for high-efficiency secondary-side rectification, it operates across –65°C to +150°C junction range and supports isolation-rated mounting via 2000VAC terminal-to-heatsink withstand voltage-specific to the ITO-220AB package variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum non-repetitive reverse voltage before breakdown; defines safe blocking margin in 36V nominal bus applications. |
| IO (per leg) | 20 A - Continuous average forward current per anode leg at TC = 75°C; enables 40A total dual-leg output capability. |
| VF @ 20A, 125°C | 0.50 V - Confirmed forward drop under worst-case thermal condition; directly reduces conduction loss in high-temp environments. |
| IFSM | 280 A - Non-repetitive surge rating for 8.3ms half-sine; supports inrush and transient overload handling without failure. |
| RθJC | 4 °C/W - Junction-to-case thermal resistance for ITO-220AB; determines heatsink sizing requirement for 150°C max TJ operation. |
| IR @ 45V, 125°C | 100 µA - Max reverse leakage at full rating and elevated temperature; critical for low-power standby efficiency. |
Pinout & Package
Package: ITO-220AB - Insulated TO-220 variant with electrically isolated tab (2000VAC isolation), matte tin-plated copper leadframe, UL 94V-0 molded plastic body, and 1.65g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode A) | First anode input | Accepts AC or switched input for first rectifier leg; electrically isolated from heatsink. |
| Pin 2 (Cathode) | Common cathode node | Shared output node for both legs; connects to positive rail or filter capacitor. |
| Pin 3 (Anode B) | Second anode input | Accepts second phase or complementary input; fully independent but thermally coupled to Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| Super Barrier technology | Combines Schottky-like low VF with PN-junction thermal stability-enables 0.50V @ 20A/125°C without runaway leakage. |
| Soft fast switching | Minimizes EMI generation during turn-off; eliminates need for snubbers in 100–500kHz SMPS designs. |
| Green molding compound | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb); meets IPC-1752A Class 3 material declaration requirements. |
| Isolated tab (ITO-220AB) | 2000VAC isolation between terminals and heatsink; allows direct mounting to grounded chassis without insulating hardware. |
Applications
| Server VRM Output Stage | Industrial 48V DC/DC Converter |
|---|---|
Use Scenario: High-current, high-efficiency 12V output stage in multi-phase server voltage regulator modules. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement-operates as passive rectifier leg in paralleled phase design. Use Value: 0.50V VF at 125°C reduces conduction loss by ~1.2W per leg versus comparable Schottky, improving full-load efficiency by 0.4%. | Use Scenario: Isolated 48V-to-12V DC/DC converter in programmable logic controller power supplies. IC Role / Device Role / Timing Role: Dual-leg output rectifier delivering 40A total with shared cathode to single output capacitor bank. Use Value: 4°C/W RθJC and 2000VAC isolation enable compact heatsink design and direct chassis mounting-reducing system footprint by 22%. |
| Telecom Rectifier Module | EV Onboard Charger Auxiliary Supply |
Use Scenario: -48V telecom rectifier module requiring high reliability and low maintenance over 10+ year field life. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 20A per leg under 60°C ambient with 150°C max junction limit. Use Value: 100µA IR at 125°C ensures <0.5mW leakage power per leg-critical for zero-power standby compliance in NEBS Level 3 deployments. | Use Scenario: 12V auxiliary supply in EV onboard chargers, operating continuously during AC charging cycles. IC Role / Device Role / Timing Role: Dual-anode rectifier feeding isolated buck converter input, leveraging common-cathode topology for simplified filtering. Use Value: Soft switching behavior suppresses 30–100MHz EMI peaks by >12dB, easing CISPR-25 Class 5 radiated emissions certification. |
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 |
|---|---|---|---|
| SBRT4045CTFP-G | Same die, identical electrical specs; differs only in marking code and internal traceability-fully interchangeable. | No functional difference; used interchangeably in same PCB footprints and thermal layouts. | Select when traceability or internal lot control requires SBRT prefix per Diodes' manufacturing revision policy. |
| MBR4045CTFP-G | Standard Schottky rectifier; higher VF (0.65V typ @ 20A/25°C) and rapid VF increase above 100°C; 200µA IR @ 125°C. | Limited to lower-ambient or short-duty-cycle use due to thermal runaway risk above 110°C junction. | Choose only if cost sensitivity outweighs thermal derating needs and leakage budget permits doubling reverse current. |
Compared with SBRT4045CTFP-G, SBR4045CTFP-G offers identical performance and fit; versus MBR4045CTFP-G, it delivers 0.15V lower VF at 125°C and half the leakage-enabling stable 150°C operation where Schottky devices fail.
Availability
SBR4045CTFP-G is available at Aetrix Electronics and suitable for server VRM output stages, industrial 48V DC/DC converters, and telecom rectifier modules requiring stable component supply, long-lifecycle support, and RoHS/Green compliance.
Supply support for SBR4045CTFP-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, manufacturing, and sales operations across Asia, Europe, and North America.
SBR4045CTFP-G belongs to the SBR® Super Barrier Rectifier product line, engineered specifically for high-efficiency, high-temperature secondary-side rectification in enterprise power supplies and industrial DC/DC systems.
FAQ
What is the maximum junction temperature rating for SBR4045CTFP-G?
The absolute maximum junction temperature is +150°C, validated across the full operating range per DS30977 Rev. 6–2. Derating curves confirm 20A per leg is sustainable up to 75°C case temperature; above that, linear derating applies per Figure 1. Thermal design must maintain TJ ≤ 150°C under worst-case load and ambient conditions.
Does SBR4045CTFP-G require a thermal pad or insulator when mounted to a heatsink?
No insulator is required-the ITO-220AB package provides 2000VAC isolation between terminals and the metal tab, allowing direct mounting to a grounded heatsink. The tab is electrically isolated and thermally conductive, eliminating need for mica pads or silicone films while preserving thermal performance (RθJC = 4°C/W).
How does the soft switching characteristic reduce EMI in SMPS designs?
Soft switching minimizes reverse recovery dv/dt and eliminates current tailing, suppressing high-frequency ringing (30–100MHz) caused by parasitic LC resonance. Measured data shows >12dB reduction in radiated emissions peaks versus standard Schottky rectifiers-directly easing CISPR-25 and FCC Part 15 compliance without added snubbers or shielding.
Is SBR4045CTFP-G suitable for automotive under-hood applications?
No-it is not AEC-Q101 qualified and lacks automotive-specific qualification testing (e.g., HTOL, TCT, ESD). While its -65°C to +150°C rating overlaps automotive ambient ranges, Diodes Incorporated does not warrant or characterize this part for automotive safety-critical or under-hood use per their Life Support Notice and product documentation.
SBR4045CTFP-G 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):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 20 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
SBR4045CTFP-G FAQ
1.How can I place an order for SBR4045CTFP-G through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR4045CTFP-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 SBR4045CTFP-G reliable?
The price and inventory of SBR4045CTFP-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR4045CTFP-G is usually 5 days.
3.What payment methods are accepted for SBR4045CTFP-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR4045CTFP-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR4045CTFP-G?
SBR4045CTFP-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR4045CTFP-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 SBR4045CTFP-G?
For technical support, including SBR4045CTFP-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR4045CTFP-G requirements.
6.How does Aetrix verify that SBR4045CTFP-G is sourced from the original manufacturer or authorized distributors?
All SBR4045CTFP-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 SBR4045CTFP-G meets industry standards.
7.What is the process for return or replacement of SBR4045CTFP-G?
All SBR4045CTFP-G units undergo pre-shipment inspection (PSI). If there is an issue with SBR4045CTFP-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 SBR4045CTFP-G part is unused and in its original packaging.
Return procedure for SBR4045CTFP-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR4045CTFP-G 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
-
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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