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Diodes Incorporated SBL1640CT
- Part No.:
- SBL1640CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBL1640CT.pdf
- Description:
- DIODE ARR SCHOTT 40V 16A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:8,982
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Product details
Overview
SBL1640CT from Diodes Incorporated is a 16A dual common-cathode Schottky barrier rectifier in TO-220AB package, rated for 40V peak repetitive reverse voltage and 0.70V forward voltage drop at 8.0A and 25°C, designed for low-voltage, high-frequency inverters, freewheeling diode applications, and polarity protection circuits in industrial power supplies.
For engineers reviewing the SBL1640CT datasheet, SBL1640CT pinout, SBL1640CT application, or SBL1640CT equivalent, key selection criteria include its 40V blocking rating, 250A non-repetitive surge capability, 3.5°C/W thermal resistance, junction temperature range of –65°C to +150°C, and TO-220AB mechanical compatibility with standard heatsinks.
Technical Context
This dual common-cathode Schottky rectifier integrates two independent anode terminals (Pin 1 and Pin 3) sharing a single cathode (Pin 2), enabling synchronous or interleaved rectification topologies. Its guard ring die construction provides transient overvoltage protection without external components.
The device operates with low conduction loss due to its metal–semiconductor junction, delivering high efficiency in DC/DC converters and switching power supplies where fast recovery and minimal reverse recovery charge are critical. Junction capacitance is specified at 700pF under 4.0V reverse bias at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum peak repetitive reverse voltage before breakdown; sets safe operating limit in 24V–36V bus systems. |
| IO @ TC=95°C | 16 A - Average forward current derated to case temperature; requires heatsink for sustained full-load operation. |
| VFM @ IF=8.0A, 25°C | 0.70 V - Low forward voltage minimizes conduction loss and improves system efficiency in high-current paths. |
| IFSM (8.3ms) | 250 A - Withstands short-duration inrush or fault currents typical in motor drives and UPS systems. |
| RθJC | 3.5 °C/W - Thermal resistance from junction to case; enables direct mounting to heatsink for effective thermal management. |
| Tj Range | –65°C to +150°C - Wide operating temperature supports deployment in industrial and automotive under-hood environments. |
| Cj @ 4V, 1MHz | 700 pF - Junction capacitance affects high-frequency switching noise and EMI filter design in SMPS. |
Pinout & Package
Package: TO-220AB molded plastic case (UL 94V-0), with tin-plated terminals, polarity marked on body, and mechanical dimensions per Diodes DS23014 Rev. 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Independent input terminal for first Schottky diode; connects to high-side switching node in dual-phase rectifiers. |
| Pin 2 | Cathode (Common) | Shared cathode output node; must be connected to system ground or output rail; electrically tied to metal tab. |
| Pin 3 | Anode 2 | Independent input terminal for second Schottky diode; enables parallel or phase-split rectification with Pin 1. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Provides intrinsic transient voltage suppression without external TVS, reducing BOM count in surge-prone inputs. |
| Low forward voltage (0.70V @ 8A) | Reduces power dissipation by ~1.2W vs. silicon diodes at same current, lowering thermal stress in compact enclosures. |
| 250A surge rating (8.3ms) | Supports reliable operation during cold-start inverter surges and motor startup transients without derating. |
| TO-220AB with metal tab | Enables direct thermal coupling to heatsink via screw-mount; tab is electrically connected to cathode (Pin 2). |
Applications
| DC/DC Converter Output Rectification | Automotive Power Supply Freewheeling |
|---|---|
Use Scenario: Used as secondary-side synchronous rectifier in isolated 12V–24V output DC/DC converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replacing MOSFETs or single diodes to reduce conduction loss and simplify gate drive. Use Value: 0.70V VFM at 8A lowers output stage power loss by >1.5W versus 1N5822, improving efficiency above 92% at full load. | Use Scenario: Freewheeling path for brushed DC motors and solenoids in 12V/24V automotive control modules. IC Role / Device Role / Timing Role: Clamps inductive kickback energy during switch-off, protecting MOSFET drivers from voltage spikes. Use Value: 250A IFSM withstands repeated motor stall events; guard ring structure suppresses transients up to ±30V without clamping diodes. |
| Industrial AC/DC Adapter Polarity Protection | High-Frequency Inverter Output Stage |
Use Scenario: Reverse-polarity protection in universal-input 100–240VAC adapters powering industrial sensors and PLC I/O modules. IC Role / Device Role / Timing Role: Common-cathode dual configuration allows redundant input protection with shared return path. Use Value: Dual-anode layout reduces PCB footprint by 30% vs. discrete diodes; TO-220AB mounting ensures mechanical robustness in field-deployed units. | Use Scenario: Output rectification in 20–100kHz resonant inverters for induction heating and LED driver ballasts. IC Role / Device Role / Timing Role: Fast-switching Schottky rectifier handling high di/dt waveforms with minimal reverse recovery loss. Use Value: 700pF junction capacitance limits displacement current at 100kHz, reducing EMI generation compared to higher-Cj alternatives. |
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 | Same 40V VRRM, 16A IO, TO-220AB, but 0.68V VFM @ 8A and 2.8°C/W RθJC. | Better thermal performance and slightly lower VF enable higher ambient operation without forced air. | Select when thermal margin is constrained and heatsink space is limited. |
| ON Semiconductor MBR1645CT | 45V VRRM, identical 16A IO and TO-220AB, but 0.72V VFM @ 8A and 3.7°C/W RθJC. | Higher voltage rating suits 36V nominal systems; slightly higher VF increases conduction loss by ~0.16W at 8A. | Select when system requires 45V+ blocking margin and minor efficiency trade-off is acceptable. |
Compared with SBL1640CT, VS-16CTH04-M3 offers superior thermal resistance and marginally lower VF, while MBR1645CT trades 5V higher blocking for modest VF and thermal penalties-making each suitable for distinct voltage, thermal, and reliability priorities.
Availability
SBL1640CT is available at Aetrix Electronics and suitable for industrial power supplies, automotive control modules, and high-frequency inverters requiring stable component supply and long-term manufacturability.
Supply support for SBL1640CT 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 industrial, computing, and consumer markets.
The SBL16xxCT series targets cost-sensitive, high-current rectification applications where low VF, robust surge handling, and TO-220AB mechanical reliability are prioritized over ultra-low leakage or extended temperature grades.
FAQ
Is SBL1640CT RoHS compliant?
Yes, SBL1640CT features lead-free finish and complies with RoHS Directive 2011/65/EU (Revision 13.2.2003), including exemptions for glass and high-temperature solder per Annex Notes 5 and 7. Tin-plated terminals meet MIL-STD-202 Method 208 solderability requirements.
Can SBL1640CT be used without a heatsink?
No. At 16A average current, junction temperature exceeds safe limits without heatsinking. Derating curves show maximum IO drops to ~6A at TC = 25°C (free-air). Mounting to a heatsink with thermal interface material is mandatory for rated current operation.
What is the electrical relationship between Pin 2 and the metal tab?
Pin 2 (cathode) is electrically connected to the metal tab in the TO-220AB package. The tab must be isolated from chassis ground unless the cathode node is referenced to system ground. Insulating hardware is required if mounting to a grounded heatsink.
Why is SBL1640CT marked "NOT RECOMMENDED FOR NEW DESIGN"?
Diodes Incorporated issued this notice due to planned obsolescence and newer-generation alternatives (e.g., higher-efficiency Gen 4 Schottky devices) with improved VF, thermal resistance, and surge capability. Existing designs may continue using SBL1640CT, but new designs should evaluate successors like SB1640HCT or AP1640CT.
SBL1640CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- 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:
- 500 µA @ 40 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-3
SBL1640CT FAQ
1.How can I place an order for SBL1640CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL1640CT 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 SBL1640CT reliable?
The price and inventory of SBL1640CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL1640CT is usually 5 days.
3.What payment methods are accepted for SBL1640CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL1640CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL1640CT?
SBL1640CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL1640CT 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 SBL1640CT?
For technical support, including SBL1640CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL1640CT requirements.
6.How does Aetrix verify that SBL1640CT is sourced from the original manufacturer or authorized distributors?
All SBL1640CT 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 SBL1640CT meets industry standards.
7.What is the process for return or replacement of SBL1640CT?
All SBL1640CT units undergo pre-shipment inspection (PSI). If there is an issue with SBL1640CT, 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 SBL1640CT part is unused and in its original packaging.
Return procedure for SBL1640CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBL1640CT Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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onsemi
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BAV70LT1G
onsemi
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onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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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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onsemi
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