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Diodes Incorporated SBR2045CT-G
- Part No.:
- SBR2045CT-G
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBR2045CT-G.pdf
- Description:
- DIODE ARRAY SBR 45V 10A TO-220-3
- Quantity:
- Payment:
- Shipping:
Inventory:50
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Product details
Overview
SBR2045CT-G from Diodes Incorporated is a 20A dual common-cathode super barrier rectifier in TO220AB package, rated for 45V peak reverse voltage and featuring 0.43V forward voltage at 10A/25°C, soft fast switching capability, and operation up to +150°C junction temperature - used in high-efficiency AC/DC secondary-side rectification for telecom power supplies and industrial SMPS.
For engineers reviewing the SBR2045CT-G datasheet, SBR2045CT-G pinout, SBR2045CT-G application, or SBR2045CT-G equivalent, key selection criteria include forward voltage drop at high temperature, thermal resistance (2°C/W junction-to-case), surge current rating (120A IFSM), and RoHS-compliant green packaging with halogen/antimony-free molding compound.
Technical Context
This dual-element rectifier integrates two independent SBR® diodes sharing a common cathode terminal, enabling synchronous half-wave or center-tapped full-wave configurations. Its patented super barrier architecture replaces traditional PN junctions with low-barrier metal-semiconductor interfaces, reducing forward conduction loss while maintaining low leakage.
Thermal performance is defined by a 2°C/W junction-to-case resistance (TO220AB, with 50×50×23 mm heatsink), and electrical stability is confirmed across -65°C to +150°C operating range. Reverse leakage remains ≤0.3 mA at 45V/25°C and ≤50 mA at 45V/125°C, supporting reliable operation in thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 45 V - defines maximum allowable blocking voltage before avalanche breakdown in DC or AC line applications |
| Avg. Forward Current (Total) | 20 A - total device current handling capacity with both legs conducting simultaneously under heatsink-cooled conditions |
| Forward Voltage @ 10A/25°C | 0.43 V - directly reduces conduction loss and improves system efficiency vs. standard Schottky or fast recovery diodes |
| Junction-to-Case Thermal Resistance | 2 °C/W - enables predictable thermal design when mounted on standard aluminum heatsinks |
| Non-Repetitive Surge Current | 120 A - withstands inrush and transient overloads typical during power-up or fault events in SMPS outputs |
| Operating Temperature Range | -65°C to +150°C - supports deployment in extended-temperature industrial and telecom equipment |
Pinout & Package
Package: TO220AB - molded plastic case (UL 94V-0), matte tin-plated copper leadframe, 1.85 g weight, with isolated mounting tab electrically connected to cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | Anode of first rectifier element | Accepts positive input from transformer secondary winding leg 1; must be routed with low-inductance layout for EMI control |
| Pin 2 (Cathode) | Common cathode node | Shared output node for both elements; connects directly to output capacitor and load return path |
| Pin 3 (Anode 2) | Anode of second rectifier element | Accepts positive input from transformer secondary winding leg 2; symmetrical routing required for balanced current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Patented SBR® Technology | Enables lower VF than conventional Schottky diodes while retaining higher temperature stability and reduced leakage |
| Soft, Fast Switching | Minimizes reverse recovery ringing and EMI generation in high-frequency SMPS designs (>100 kHz) |
| Halogen & Antimony-Free "Green" Packaging | Meets stringent environmental compliance (Br+Cl <1500 ppm, Sb <1000 ppm) without sacrificing thermal or electrical performance |
| Lead-Free, RoHS-Compliant Finish | Matte tin plating over copper leadframe ensures solderability per MIL-STD-202 Method 208 and eliminates Pb-related reliability concerns |
Applications
| Telecom Power Rectification | Industrial SMPS Output Stage |
|---|---|
Use Scenario: Secondary-side rectification in 48V-output telecom brick power supplies operating at 200–500 kHz switching frequency. IC Role / Device Role / Timing Role: Dual common-cathode rectifier replacing discrete Schottky pairs to reduce component count and conduction loss. Use Value: 0.43V VF at 10A/25°C lowers power dissipation by ~1.2W per leg versus comparable 0.55V Schottky, improving overall efficiency by 0.8–1.1%. | Use Scenario: Output rectification in 24V/30A industrial switch-mode power supplies with forced-air cooling. IC Role / Device Role / Timing Role: High-current, high-temperature rectifier handling continuous 20A load with minimal derating up to 100°C ambient. Use Value: 2°C/W RθJC and 150°C max TJ allow stable operation without oversized heatsinks, reducing mechanical footprint by ~25% vs. legacy alternatives. |
| Server PSU DC-DC Modules | LED Driver Secondary Side |
Use Scenario: Point-of-load rectification in 12V intermediate bus converters inside datacenter server PSUs. IC Role / Device Role / Timing Role: Low-VF, fast-recovery rectifier minimizing voltage droop and thermal stress during dynamic load transients. Use Value: Soft switching behavior suppresses high-frequency noise coupling into sensitive digital logic rails, reducing need for additional filtering components. | Use Scenario: Constant-current output rectification in outdoor-rated LED drivers exposed to ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: High-reliability rectifier maintaining low leakage (<50 mA at 125°C) to prevent output drift under thermal stress. Use Value: Stable IR performance across temperature ensures consistent LED current regulation without feedback loop compensation adjustments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super barrier rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-20CPH04-M3 | 40V VRRM, 0.47V VF @ 10A/25°C, TO220AC package (single anode), higher RθJC (3°C/W) | Limited to ≤40V systems; unsuitable for 45V margin-critical designs; requires separate cathode routing | Select only if 40V rating suffices and dual-anode layout is not required |
| ON Semiconductor MUR2040CTG | 400V VRRM, 1.1V VF @ 10A/25°C, ultrafast recovery but higher conduction loss | Designed for high-voltage PFC front-end, not low-VF secondary-side use; 2.5× higher conduction loss | Not recommended for efficiency-sensitive secondary rectification; consider only for HV transient protection roles |
Compared with VS-20CPH04-M3 and MUR2040CTG, SBR2045CT-G delivers optimal balance of low VF, precise 45V rating, dual-anode convenience, and thermal performance - making it the preferred choice for high-efficiency, space-constrained 48V telecom and industrial SMPS outputs.
Availability
SBR2045CT-G is available at Aetrix Electronics and suitable for telecom power supplies, industrial SMPS, server DC-DC modules, and LED driver secondary-side rectification requiring stable component supply and long-term lifecycle support.
Supply support for SBR2045CT-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.
The SBR® super barrier rectifier product line targets high-efficiency power conversion systems where low forward voltage, high-temperature stability, and soft switching are critical - especially in telecom, computing, and industrial power supplies.
FAQ
What is the thermal resistance of SBR2045CT-G and how is it measured?
The junction-to-case thermal resistance (RθJC) is 2°C/W for the TO220AB package, measured using a 50×50×23 mm aluminum heatsink under standardized test conditions per JEDEC JESD51-2. This value assumes direct mounting with thermal interface material and proper torque on the mounting screw.
Is SBR2045CT-G suitable for surface-mount assembly?
No - SBR2045CT-G uses the through-hole TO220AB package with a metal tab designed for mechanical mounting and heatsinking. It is not compatible with reflow or wave soldering processes intended for SMT packages like DPAK or SO-8.
How does SBR2045CT-G differ from standard Schottky rectifiers?
SBR2045CT-G uses Diodes Incorporated's patented Super Barrier Rectifier (SBR®) structure, which achieves lower forward voltage than conventional Schottkys at high temperature while maintaining significantly lower reverse leakage - especially above 100°C - due to its optimized metal-semiconductor barrier design.
Can SBR2045CT-G replace a single 20A Schottky diode in a center-tapped transformer design?
Yes - its dual common-cathode configuration is specifically intended for center-tapped full-wave rectification. Pins 1 and 3 serve as independent anodes, and Pin 2 is the shared cathode output, eliminating the need for two discrete diodes and simplifying PCB layout and thermal management.
SBR2045CT-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):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 540 mV @ 10 A
- Speed:
- Fast 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:
- TO-220-3
SBR2045CT-G FAQ
1.How can I place an order for SBR2045CT-G through Aetrix?
Please submit a Request for Quotation (RFQ) for SBR2045CT-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 SBR2045CT-G reliable?
The price and inventory of SBR2045CT-G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBR2045CT-G is usually 5 days.
3.What payment methods are accepted for SBR2045CT-G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBR2045CT-G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBR2045CT-G?
SBR2045CT-G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBR2045CT-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 SBR2045CT-G?
For technical support, including SBR2045CT-G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBR2045CT-G requirements.
6.How does Aetrix verify that SBR2045CT-G is sourced from the original manufacturer or authorized distributors?
All SBR2045CT-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 SBR2045CT-G meets industry standards.
7.What is the process for return or replacement of SBR2045CT-G?
All SBR2045CT-G units undergo pre-shipment inspection (PSI). If there is an issue with SBR2045CT-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 SBR2045CT-G part is unused and in its original packaging.
Return procedure for SBR2045CT-G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBR2045CT-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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