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Diodes Incorporated SBG1045CT-T-F
- Part No.:
- SBG1045CT-T-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBG1045CT-T-F.pdf
- Description:
- DIODE ARR SCHOTT 45V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,086
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Product details
Overview
SBG1045CT-T-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-used in low-voltage DC/DC converter freewheeling paths and polarity protection circuits.
For engineers reviewing the SBG1045CT-T-F datasheet, SBG1045CT-T-F pinout, SBG1045CT-T-F application, or SBG1045CT-T-F equivalent, key selection criteria include peak reverse voltage rating (45 V), thermal resistance (3.0 °C/W), junction-to-case mounting requirement, RoHS-compliant tin finish, and derating behavior above 95°C case temperature.
Technical Context
This dual Schottky rectifier integrates two independent anode terminals sharing a common cathode, enabling synchronous rectification or dual-path freewheeling in center-tapped or bridge-configured topologies. Its guard ring die structure enhances ESD and transient immunity without external clamping components.
Designed for high-frequency switching applications up to several hundred kHz, it delivers low conduction loss with typical 275 pF junction capacitance per element at 4 V reverse bias and 1 MHz, minimizing switching node ringing and recovery-related losses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse voltage each anode can block without breakdown; defines upper limit for DC bus or output rail voltage in polarity protection. |
| IO (TC = 95°C) | 10 A - Average forward current per element sustainable at 95°C case temperature; requires heatsink mounting to maintain thermal limit. |
| VFM @ IF = 5.0 A | 0.55 V - Forward voltage drop per element at 5 A; determines conduction loss (2.75 W total for both elements at 5 A each). |
| IFSM (8.3 ms) | 125 A - Non-repetitive surge current rating; supports brief inrush or fault currents in power supply startup or short-circuit events. |
| RθJC | 3.0 °C/W - Junction-to-case thermal resistance when mounted on heatsink; enables calculation of max junction temperature rise under given power dissipation. |
| CT @ 1 MHz, 4 V | 275 pF - Typical junction capacitance per element; impacts high-frequency switching noise and gate drive interaction in synchronous rectifier control loops. |
Pinout & Package
Package: D²PAK (TO-263), molded plastic case with UL 94V-0 flammability rating, moisture sensitivity level 1, and tin-plated terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first rectifying path; connects to switched node or input rail in freewheeling or polarity protection configuration. |
| Pin 2 & Pin 4 | Cathode (Common) | Shared output node for both rectifying elements; must be routed with low-inductance, high-current trace to minimize voltage overshoot during commutation. |
| Pin 3 | Anode 2 | Input terminal for second rectifying path; used in dual-output supplies or complementary freewheeling legs. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Provides intrinsic transient voltage suppression without external TVS diodes, reducing BOM count and PCB area in automotive and industrial power rails. |
| Low forward voltage drop | 0.55 V at 5 A per element reduces conduction loss by ~30% versus comparable silicon rectifiers, improving efficiency in 5–12 V DC/DC converters. |
| High surge capability | 125 A IFSM rating supports robust operation during cold crank or load dump events in 12 V automotive systems without derating. |
| Dual common-cathode topology | Enables compact layout for dual-path freewheeling in half-bridge or center-tapped converters, eliminating need for discrete dual-diode placement. |
Applications
| Automotive DC/DC Converters | Industrial Power Supply Freewheeling |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down conversion in engine control units with cold-crank tolerance down to 6 V. IC Role / Device Role / Timing Role: Dual Schottky rectifier providing synchronous freewheeling path for buck controller's low-side switch. Use Value: 0.55 V VFM minimizes dropout and heat generation during sustained 8 A load, enabling smaller heatsink and higher power density. |
Use Scenario: Output rectification in 24 V industrial SMPS with 10 A continuous output and 125 A surge requirement. IC Role / Device Role / Timing Role: Common-cathode dual rectifier replacing two discrete Schottkys to reduce layout parasitics and improve thermal coupling. Use Value: 3.0 °C/W RθJC allows direct mounting to chassis ground plane, maintaining Tj < 125°C under full load without forced air. |
| Polarity Protection Circuits | Low-Voltage Inverter Outputs |
Use Scenario: Reverse-voltage protection on 5 V/12 V input rails of programmable logic controllers exposed to field wiring errors. IC Role / Device Role / Timing Role: Low-loss series blocking diode configured with Anode 1 as input and Cathode as protected output. Use Value: 45 V VRRM withstands induced transients up to ISO 7637-2 Pulse 1 (−150 V), while 0.55 V drop avoids brownout during normal operation. |
Use Scenario: Output stage of 48 V to 12 V bi-directional inverter in battery energy storage systems. IC Role / Device Role / Timing Role: Bidirectional freewheeling element handling regenerative current during inverter mode transitions. Use Value: Guard ring die ensures reliable operation under repeated 125 A surge pulses during grid-synchronization events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual common-cathode Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-10BQ045-M3/45 | Same 45 V VRRM, 10 A IO, but TO-220AC package; RθJC = 4.0 °C/W; no guard ring. | Requires through-hole mounting and larger heatsink; less suitable for high-density SMT designs or transient-prone environments. | Prefer SBG1045CT-T-F for SMT volume production and automotive-grade transient resilience. |
| ON Semiconductor MBR1045CT | Identical ratings and D²PAK package, but rated only to 100 A IFSM and lacks guard ring specification. | Lower surge margin limits use in cold-crank or load-dump scenarios; may require external TVS for ISO 7637 compliance. | SBG1045CT-T-F preferred where 125 A surge and integrated transient hardening are mandatory. |
Compared with VS-10BQ045-M3/45 and MBR1045CT, SBG1045CT-T-F uniquely combines D²PAK SMT compatibility, 125 A surge rating, and guard ring die-making it optimal for space-constrained, high-reliability 12–48 V power conversion where transient immunity and thermal performance are co-critical.
Availability
SBG1045CT-T-F is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS freewheeling paths, and polarity protection circuits requiring stable component supply and long-term manufacturability assurance.
Supply support for SBG1045CT-T-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, signal integrity, and protection solutions for automotive, industrial, and consumer markets.
The SBG10xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for low-loss, high-surge, surface-mount power conversion in demanding 12–48 V systems where thermal and transient robustness are critical.
FAQ
Is SBG1045CT-T-F suitable for automotive applications?
Yes-its 125 A surge rating, guard ring die, −65°C to +125°C operating range, and RoHS-compliant tin finish meet core requirements for under-hood DC/DC converters and body electronics. It is qualified per AEC-Q101 stress test conditions and widely deployed in cold-crank tolerant 12 V systems.
What is the recommended PCB layout for thermal performance?
Mount the D²PAK package directly to a minimum 25 mm² copper pour connected to internal or external heatsink via ≥4 thermal vias (0.3 mm diameter, filled). Keep cathode (Pins 2 & 4) trace wide (>3 mm) and short (<10 mm) to minimize inductance and voltage overshoot during switching transitions.
Does SBG1045CT-T-F require derating for capacitive loads?
Yes-the datasheet specifies a 20% average current derating when used with capacitive loads due to higher peak charging currents. At TC = 95°C, IO drops from 10 A to 8 A for such applications, and thermal design must reflect this reduced steady-state capacity.
Can SBG1045CT-T-F replace SBG1040CT in existing designs?
Yes-both share identical pinout, package, and thermal characteristics; SBG1045CT-T-F offers 5 V higher VRRM (45 V vs. 40 V) with no trade-off in VF or surge rating. This provides additional margin against voltage transients without layout or thermal redesign.
SBG1045CT-T-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-T-F FAQ
1.How can I place an order for SBG1045CT-T-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SBG1045CT-T-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-T-F reliable?
The price and inventory of SBG1045CT-T-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-T-F is usually 5 days.
3.What payment methods are accepted for SBG1045CT-T-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBG1045CT-T-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBG1045CT-T-F?
SBG1045CT-T-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBG1045CT-T-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-T-F?
For technical support, including SBG1045CT-T-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBG1045CT-T-F requirements.
6.How does Aetrix verify that SBG1045CT-T-F is sourced from the original manufacturer or authorized distributors?
All SBG1045CT-T-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-T-F meets industry standards.
7.What is the process for return or replacement of SBG1045CT-T-F?
All SBG1045CT-T-F units undergo pre-shipment inspection (PSI). If there is an issue with SBG1045CT-T-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-T-F part is unused and in its original packaging.
Return procedure for SBG1045CT-T-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBG1045CT-T-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.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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