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Diodes Incorporated SBG1640CT
- Part No.:
- SBG1640CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SBG1640CT.pdf
- Description:
- DIODE ARR SCHOTT 40V 16A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,060
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Product details
Overview
SBG1640CT from Diodes Incorporated is a 16A dual common-cathode surface-mount Schottky barrier rectifier in D²PAK package, rated for 40V peak repetitive reverse voltage and 0.55V forward voltage at 8.0A per element, designed for low-voltage, high-frequency DC-DC conversion and polarity protection in industrial power supplies.
For engineers reviewing the SBG1640CT datasheet, SBG1640CT pinout, SBG1640CT application, or SBG1640CT equivalent, key selection criteria include its 175A non-repetitive surge rating, 3.0°C/W junction-to-case thermal resistance, 275pF typical capacitance at 1MHz, and RoHS-compliant tin-plated terminals suitable for automated reflow assembly.
Technical Context
The SBG1640CT integrates two independent Schottky diodes sharing a common cathode terminal, enabling dual-channel rectification or parallel current handling in compact space-constrained layouts. Its guard ring die construction provides inherent transient overvoltage protection without external components.
Designed for operation up to +125°C junction temperature, it delivers stable forward conduction with minimal self-heating under continuous 16A average load when mounted on an adequate heatsink, and maintains low leakage (≤50μA at 125°C) across its full blocking voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum peak reverse voltage the device blocks reliably without breakdown |
| IO (TC = 95°C) | 16 A - Continuous average forward current per element with case temperature limited to 95°C |
| VFM @ IF = 8.0A | 0.55 V - Low conduction loss per element, reducing power dissipation in high-current paths |
| IFSM (8.3ms) | 175 A - Surge withstand capability enables robustness against inrush and short-circuit transients |
| RθJC | 3.0 °C/W - Enables efficient heat transfer to PCB copper or external heatsink for thermal management |
| CT @ 1MHz, 4V | 275 pF - Low junction capacitance supports high-frequency switching (>100kHz) with minimal switching loss |
Pinout & Package
Package: D²PAK (TO-263AB), molded plastic case with UL 94V-0 flammability rating, moisture sensitivity level 1, and tin-plated solderable terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first Schottky diode element |
| Pin 2 & 4 | Cathode (Common) | Shared output node for both diodes; electrically connected internally and externally bonded |
| Pin 3 | Anode 2 | Input terminal for second Schottky diode element |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Provides built-in transient voltage suppression without requiring external TVS devices |
| Low forward voltage drop | 0.55V at 8A reduces conduction losses by >30% vs. standard silicon rectifiers at same current |
| High surge capability | 175A peak surge rating supports reliable operation during motor startup or capacitor charging events |
| Dual common-cathode configuration | Enables compact dual-output rectification or current-sharing topology in half-bridge or OR-ing applications |
Applications
| Industrial DC-DC Converters | Automotive Power Modules |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12V–48V telecom and server PSUs operating at 200–500kHz. IC Role / Device Role / Timing Role: Dual Schottky rectifier replacing MOSFETs in low-side synchronous rectification, leveraging low VF for efficiency gain. Use Value: 0.55V VF minimizes conduction loss at 8–12A per rail, improving full-load efficiency by ~1.2% versus Si alternatives. | Use Scenario: Polarity protection and reverse-battery protection in 24V commercial vehicle ECUs and body control modules. IC Role / Device Role / Timing Role: Common-cathode dual diode configured as back-to-back OR-ing path for redundant power inputs. Use Value: 175A IFSM withstands jump-start surges; 40V VRRM covers ISO 7637-2 pulse 5a (load dump) with margin. |
| Solar Microinverters | UPS Battery Charging Circuits |
Use Scenario: Freewheeling path in H-bridge inverters converting DC from PV panels to 230VAC grid interface. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode across low-side switches during dead-time commutation. Use Value: 275pF CT limits displacement current during fast dv/dt transitions, reducing EMI generation. | Use Scenario: Isolation and charge-path steering between AC/DC adapter and lead-acid/LiFePO₄ battery banks in line-interactive UPS systems. IC Role / Device Role / Timing Role: Dual-anode common-cathode configuration enables automatic source selection without control logic. Use Value: 16A IO rating supports >500W charging; 3.0°C/W RθJC allows direct PCB copper heatsinking without discrete heatsinks. |
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-16CTH04-M3 | Same 40V VRRM, 16A IO, but TO-220AC package with higher RθJC (4.0°C/W); no guard ring | Requires mechanical mounting and external heatsink; less suited for SMT-only production | Select if through-hole assembly or legacy footprint compatibility is required |
| ON Semiconductor MBR1645CT | 45V VRRM, identical D²PAK package and pinout, but 0.62V VFM at 8A and 200A IFSM | Higher blocking voltage suits 36V nominal systems; slightly higher conduction loss | Select when 45V margin is needed for transient tolerance in 24V systems |
Compared with VS-16CTH04-M3, SBG1640CT offers superior thermal performance and integrated transient protection; compared with MBR1645CT, it trades 5V lower VRRM for 0.07V lower VFM-favoring efficiency-critical 12–24V designs.
Availability
SBG1640CT is available at Aetrix Electronics and suitable for industrial DC-DC converters, automotive power modules, and solar microinverter designs requiring stable component supply and long-term manufacturability.
Supply support for SBG1640CT 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 and manufacturing operations across Asia and the Americas.
The SBG16xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in space-constrained industrial and automotive applications.
FAQ
Is SBG1640CT suitable for synchronous rectification in LLC resonant converters?
Yes. Its 0.55V forward voltage at 8A and 275pF junction capacitance enable low-loss, high-frequency operation up to 500kHz. The common-cathode dual configuration supports interleaved or phase-split secondary rectification, and its 3.0°C/W thermal resistance ensures stable junction temperature under continuous 16A load when properly heatsunk.
What is the maximum allowable PCB copper area for thermal relief when using SBG1640CT without an external heatsink?
With 100mm² of 2oz copper connected to Pin 2 & 4 (cathode) on FR-4, SBG1640CT achieves ~45°C/W board-level thermal resistance. At 16A and 0.55V VF, this yields ~12W dissipation and ~540°C junction rise-exceeding safe limits. Minimum recommended copper area is 400mm² per side with internal thermal vias to inner ground planes to maintain Tj ≤125°C.
Does SBG1640CT meet AEC-Q101 for automotive use?
No. SBG1640CT is not AEC-Q101 qualified. While it operates from –65°C to +125°C and meets RoHS, it lacks the stress testing, failure analysis, and qualification documentation required for automotive-grade deployment. For AEC-Q101-compliant alternatives, consider Diodes' APx16xxCT series or Vishay's Vx16xxPbF family.
Can SBG1640CT be used in parallel with another unit to handle 32A average current?
Not recommended without current-sharing resistors or active balancing. Parameter variation (±10% VF) between units causes uneven current distribution. At 16A per device, mismatch may exceed 25% imbalance, risking thermal runaway. For 32A applications, use a single higher-rated part like SBG3240CT or implement forced-air cooling with matched-bin devices and 0.01Ω ballast resistors per anode.
SBG1640CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 40 V
- Operating Temperature - Junction:
- -65°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
SBG1640CT FAQ
1.How can I place an order for SBG1640CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBG1640CT 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 SBG1640CT reliable?
The price and inventory of SBG1640CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBG1640CT is usually 5 days.
3.What payment methods are accepted for SBG1640CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBG1640CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBG1640CT?
SBG1640CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBG1640CT 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 SBG1640CT?
For technical support, including SBG1640CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBG1640CT requirements.
6.How does Aetrix verify that SBG1640CT is sourced from the original manufacturer or authorized distributors?
All SBG1640CT 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 SBG1640CT meets industry standards.
7.What is the process for return or replacement of SBG1640CT?
All SBG1640CT units undergo pre-shipment inspection (PSI). If there is an issue with SBG1640CT, 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 SBG1640CT part is unused and in its original packaging.
Return procedure for SBG1640CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBG1640CT 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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