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Diodes Incorporated SBG1045CT-F
- Part No.:
- SBG1045CT-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBG1045CT-F.pdf
- Description:
- DIODE ARR SCHOTT 45V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,063
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Product details
Overview
SBG1045CT-F from Diodes Incorporated is a 45 V, 10 A dual common-cathode surface-mount Schottky barrier rectifier in D²PAK (TO-263) package, featuring 0.55 V forward voltage at 5.0 A per element, 125 A non-repetitive surge capability, and guard ring die construction for transient protection. It is used in low-voltage, high-frequency inverters, free-wheeling circuits, and polarity protection in DC power supplies.
For engineers reviewing the SBG1045CT-F datasheet, SBG1045CT-F pinout, SBG1045CT-F application, or SBG1045CT-F equivalent, key selection criteria include peak reverse voltage (45 V), average output current (10 A @ TC = 95°C), forward voltage drop (0.55 V @ 5 A), thermal resistance (3.0 °C/W), and D²PAK mechanical compatibility with heatsink mounting.
Technical Context
This dual Schottky rectifier integrates two independent anode terminals sharing a common cathode, enabling synchronous rectification or dual-path DC output in compact power converters. Its guard ring die structure enhances ruggedness against voltage transients without external clamping components.
The device operates across –65°C to +125°C junction temperature range, with typical total capacitance of 275 pF at 1 MHz and 4 V reverse bias, supporting high-frequency switching up to several hundred kHz in SMPS and OR-ing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse blocking voltage per element; defines safe operating limit in DC bus or flyback clamp circuits. |
| IO (per element) | 10 A @ TC = 95°C - Continuous average forward current rating when case is actively heatsinked; determines minimum heatsink size. |
| VFM | 0.55 V @ IF = 5.0 A - Low conduction loss enables >92% efficiency in 5–12 V output converters at moderate load. |
| IFSM | 125 A (8.3 ms half-sine) - Withstands inrush and short-circuit surges without bond-wire fusing; supports robust input stage design. |
| RθJC | 3.0 °C/W - Thermal resistance from junction to case; requires direct metal-to-heatsink interface for thermal management. |
| CT | 275 pF @ 1 MHz, 4 V - Low junction capacitance minimizes switching losses and EMI in high-frequency rectification. |
Pinout & Package
Package: D²PAK (TO-263), molded plastic case with UL 94V-0 flammability rating, tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first rectifying path; connects to AC node or switch node in bridge/flyback topology. |
| Pin 2 & 4 | Cathode (common) | Shared output node for both elements; must be routed with low-inductance, high-current copper for minimal voltage bounce. |
| Pin 3 | Anode 2 | Input terminal for second rectifying path; enables dual-output or interleaved converter configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves transient immunity without external TVS, reducing BOM count in automotive and industrial DC inputs. |
| Low forward voltage (0.55 V) | Reduces conduction loss by ~35% vs. comparable Si diodes, lowering thermal stress in sealed enclosures. |
| Dual common-cathode configuration | Enables space-efficient dual-path rectification in half-bridge LLC or dual-output forward converters. |
| 125 A surge rating | Supports cold-start and capacitor-charging events in 24 V/48 V battery systems without derating. |
Applications
| DC-DC Power Supply Rectification | OR-ing Circuit for Redundant Power |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12 V/24 V output DC-DC converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Dual Schottky rectifier replacing synchronous MOSFETs or single diodes to reduce conduction loss and simplify gate drive. Use Value: 0.55 V VF enables >93% efficiency at 5–10 A loads while eliminating control complexity of active rectification. | Use Scenario: Back-to-back redundancy in telecom shelf power modules where two 48 V inputs feed one output bus. IC Role / Device Role / Timing Role: Common-cathode dual diode providing automatic current steering and reverse isolation between parallel power sources. Use Value: Low VF and matched characteristics minimize voltage drop imbalance, improving load-sharing accuracy vs. discrete diodes. |
| Free-Wheeling Diode in Motor Drives | Polarity Protection in Industrial Sensors |
Use Scenario: Freewheeling path for brushed DC motor H-bridge drivers operating at 20–100 kHz PWM frequency. IC Role / Device Role / Timing Role: Fast-recovery Schottky element absorbing inductive kickback during MOSFET turn-off. Use Value: 275 pF capacitance and zero recovery charge prevent voltage overshoot spikes exceeding 45 V rating during commutation. | Use Scenario: Reverse-polarity protection on 24 V supply inputs of field-mounted IO-Link sensors and PLC analog modules. IC Role / Device Role / Timing Role: Low-loss series diode placed before LDO or DC-DC regulator to block reverse connection. Use Value: 0.55 V drop ensures >23.4 V remains at regulator input under full 10 A load, preserving headroom for brownout margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-16CTH04-M3/45 | 45 V VRRM, 16 A IO, TO-220AC package, higher VF (0.62 V @ 8 A) | Through-hole mounting; better natural convection cooling but larger footprint | Select when board space allows through-hole and higher continuous current is needed without forced airflow. |
| ON Semiconductor MBR1045CT | 45 V VRRM, 10 A IO, same D²PAK package, VF = 0.70 V @ 5 A, higher IR (5 mA @ 45 V) | Higher conduction loss and leakage; less suitable for low-power standby modes | Acceptable for cost-sensitive designs where 0.15 V higher VF is tolerable and leakage is not critical. |
Compared with VS-16CTH04-M3/45 and MBR1045CT, SBG1045CT-F offers the lowest forward voltage in D²PAK form factor, enabling higher efficiency in thermally constrained SMT layouts-critical for dense power modules and fanless industrial controllers.
Availability
SBG1045CT-F is available at Aetrix Electronics and suitable for DC-DC power supplies, redundant OR-ing circuits, motor drive freewheeling paths, and industrial polarity protection requiring stable component supply and long-term manufacturability.
Supply support for SBG1045CT-F 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, specializing in high-efficiency power management and signal integrity solutions for industrial, computing, and consumer markets.
The SBG10xxCT series targets high-current, low-VF Schottky rectification in surface-mount power supplies, emphasizing thermal performance, surge robustness, and RoHS-compliant packaging for automated assembly.
FAQ
Is SBG1045CT-F suitable for automotive applications?
No-SBG1045CT-F is not AEC-Q101 qualified and carries a "NOT RECOMMENDED FOR NEW DESIGN" notice. While it meets industrial temperature range (–65°C to +125°C), it lacks automotive-grade qualification, PPAP documentation, and guaranteed lot traceability required for vehicle ECUs or ADAS power stages.
What is the recommended PCB pad layout for thermal performance?
Use ≥400 mm² exposed copper area connected to Pin 2 & 4 (cathode) via ≥4 thermal vias (0.3 mm diameter, filled or plated) to an internal ground or dedicated thermal plane. Maintain ≥1.5 mm clearance from adjacent traces to avoid solder wicking and ensure reliable reflow joint formation in D²PAK footprint.
Can SBG1045CT-F replace SBG1040CT in existing designs?
Yes-SBG1045CT-F shares identical D²PAK package, pinout, and thermal characteristics with SBG1040CT, differing only in VRRM (45 V vs. 40 V) and VRWM (45 V vs. 40 V). The higher voltage rating provides additional margin against line transients without altering layout or thermal design.
Does SBG1045CT-F require derating for capacitive loads?
Yes-the datasheet specifies that average forward current must be derated by 20% when used with capacitive loads due to higher peak currents during charging cycles. At TC = 95°C, rated IO drops from 10 A to 8 A to maintain junction temperature within –65°C to +125°C limits.
SBG1045CT-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 45 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SBG1045CT-F FAQ
1.How can I place an order for SBG1045CT-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SBG1045CT-F 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 SBG1045CT-F reliable?
The price and inventory of SBG1045CT-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBG1045CT-F is usually 5 days.
3.What payment methods are accepted for SBG1045CT-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBG1045CT-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBG1045CT-F?
SBG1045CT-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBG1045CT-F 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 SBG1045CT-F?
For technical support, including SBG1045CT-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBG1045CT-F requirements.
6.How does Aetrix verify that SBG1045CT-F is sourced from the original manufacturer or authorized distributors?
All SBG1045CT-F 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 SBG1045CT-F meets industry standards.
7.What is the process for return or replacement of SBG1045CT-F?
All SBG1045CT-F units undergo pre-shipment inspection (PSI). If there is an issue with SBG1045CT-F, 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 SBG1045CT-F part is unused and in its original packaging.
Return procedure for SBG1045CT-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBG1045CT-F 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
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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