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Diodes Incorporated SBL1040CT
- Part No.:
- SBL1040CT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
SBL1040CT.pdf
- Description:
- DIODE ARR SCHOTT 40V 10A TO2203
- Quantity:
- Payment:
- Shipping:
Inventory:5,064
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Product details
Overview
SBL1040CT from Diodes Incorporated is a 10A dual common-cathode Schottky barrier rectifier in TO-220AB package, rated for 40V peak repetitive reverse voltage, 0.70V forward voltage drop at 5.0A and 25°C, with 175A non-repetitive surge capability - used in low-voltage DC/DC converter output stages and polarity protection circuits.
For engineers reviewing the SBL1040CT datasheet, SBL1040CT pinout, SBL1040CT application, or SBL1040CT equivalent, key selection criteria include forward voltage matching at operating current, thermal resistance (5.5°C/W junction-to-case), surge rating compatibility, and TO-220AB mechanical fit in high-current PCB layouts.
Technical Context
This dual Schottky rectifier integrates two independent anode terminals (Pins 1 and 3) sharing a common cathode (Pin 2), enabling synchronous or independent half-wave rectification paths. Its guard ring die construction enhances transient immunity without external TVS components.
Designed for operation up to +150°C junction temperature, it delivers stable forward conduction under continuous 10A average load at TC = 95°C when mounted on a heatsink - leveraging low RθJC (5.5°C/W) for efficient thermal transfer to external metalwork.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum allowable reverse voltage before breakdown; sets system-level input/output isolation margin in 24V–36V power rails. |
| IO (TC = 95°C) | 10 A - Continuous average forward current per element when case temperature is held at 95°C via heatsink mounting. |
| VFM @ 5.0A, 25°C | 0.70 V - Forward voltage drop per diode at nominal load; directly determines conduction loss (3.5W total for both elements). |
| IFSM (8.3ms) | 175 A - Peak non-repetitive surge current handling; supports inrush current limiting in motor drive freewheeling paths. |
| RθJC | 5.5 °C/W - Thermal resistance from junction to case; defines minimum heatsink requirement for thermal stability at full load. |
| Cj @ 4V, 1MHz | 450 pF - Junction capacitance per element; impacts high-frequency switching noise and EMI filter design in SMPS outputs. |
Pinout & Package
Package: TO-220AB - Molded plastic case with integral metal tab (electrically connected to Pin 2/cathode), UL 94V-0 rated, lead-free and RoHS compliant. Mounting requires insulating washer if tab is not grounded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first Schottky element; connects to positive side of AC source or switch node in bridge/freewheeling configuration. |
| Pin 2 | Common Cathode | Shared output node for both diodes; electrically tied to metal tab; must be thermally and electrically connected to heatsink ground plane. |
| Pin 3 | Anode 2 | Input terminal for second Schottky element; enables dual-path rectification or redundant polarity protection in parallel configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Provides inherent transient voltage suppression without external clamping components - reduces BOM count in automotive load-dump-prone systems. |
| Low forward voltage drop | 0.70V at 5A ensures <3.5W total conduction loss across both elements, improving efficiency in 12V/24V DC/DC output stages. |
| High surge capability | 175A IFSM withstands motor startup surges and inductive kickback in industrial actuator drives without derating. |
| TO-220AB metal tab | Integral heatsink interface enables direct mounting to chassis or aluminum extrusion - eliminates need for separate thermal pads in space-constrained enclosures. |
Applications
| DC/DC Converter Output Rectification | Polarity Protection Circuit |
|---|---|
Use Scenario: Secondary-side rectification in isolated 24V-to-5V flyback converters powering industrial I/O modules. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier replaces center-tapped transformer + single diode, reducing conduction loss and transformer complexity. Use Value: 0.70V VFM minimizes output-stage power loss, enabling >92% efficiency at 8A load while maintaining TO-220 footprint. | Use Scenario: Reverse-voltage protection for 12V battery-powered telematics units in vehicle black-box recorders. IC Role / Device Role / Timing Role: Common-cathode configuration allows dual-input redundancy - either Anode 1 or Anode 3 accepts power from primary or backup battery rail. Use Value: 40V VRRM exceeds automotive load-dump transients (ISO 7637-2 Pulse 5a), eliminating need for upstream TVS diodes. |
| Freewheeling Diode in Motor Drivers | AC/DC Adapter Output Stage |
Use Scenario: Freewheeling path for brushed DC motor H-bridge drivers in warehouse automation conveyors. IC Role / Device Role / Timing Role: Dual-anode topology permits independent freewheeling for each half-bridge leg, reducing cross-conduction risk during PWM dead-time. Use Value: 175A IFSM handles 10× rated motor stall current without thermal runaway, extending reliability in intermittent-duty cycles. | Use Scenario: Output rectification in universal-input 100–240VAC to 12V/3A offline adapters for PoE-powered access points. IC Role / Device Role / Timing Role: Replaces discrete dual-Schottky solution with single TO-220 footprint, simplifying layout and reducing creepage/clearance verification effort. Use Value: 5.5°C/W RθJC enables passive cooling at full load - eliminating fan requirement in sealed IP65 enclosures. |
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-10BQ040 | Same 40V VRRM, 10A IO, but TO-220AC package (isolated tab); 0.65V VFM at 5A; RθJC = 6.0°C/W. | Tab isolation eliminates need for insulating hardware; slightly lower VFM improves light-load efficiency. | Select when electrical isolation between cathode and heatsink is required, or when sub-0.65V conduction loss is critical. |
| ON Semiconductor MBR1040CT | Identical TO-220AB pinout and ratings; 0.72V VFM at 5A; RθJC = 5.0°C/W; RoHS-compliant but legacy Pb-free finish. | Direct footprint replacement; marginally higher conduction loss but better thermal resistance. | Choose for drop-in replacement where existing thermal design uses minimal heatsink area and 0.02V VFM tolerance is acceptable. |
Compared with VS-10BQ040 and MBR1040CT, the SBL1040CT offers optimal balance of low thermal resistance (5.5°C/W), robust surge rating (175A), and cost-effective TO-220AB implementation - making it preferred for heatsink-mounted, high-reliability industrial power supplies where tab grounding is acceptable.
Availability
SBL1040CT is available at Aetrix Electronics and suitable for DC/DC converter output rectification, polarity protection circuits, freewheeling diode applications, and AC/DC adapter output stages requiring stable component supply and long-term manufacturability.
Supply support for SBL1040CT 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 automotive markets.
The SBL10xxCT series belongs to Diodes' high-current Schottky rectifier product line, engineered specifically for low-loss, high-reliability power conversion in space-constrained, thermally demanding environments.
FAQ
What is the maximum junction temperature for continuous operation of the SBL1040CT?
The SBL1040CT has an operating junction temperature range of –65°C to +150°C. For continuous 10A operation, the case temperature must be maintained at ≤95°C using a heatsink - corresponding to a maximum junction temperature of 150°C when RθJC = 5.5°C/W and power dissipation is ~3.5W.
Is the metal tab of the TO-220AB package electrically connected to any pin?
Yes, the metal tab is internally connected to Pin 2 (common cathode). This connection is confirmed in the mechanical drawing and pin diagram - meaning the tab must be treated as an active circuit node and electrically insulated from other potentials unless intentionally grounded via the cathode path.
Can the SBL1040CT replace a single 10A Schottky diode in a full-wave bridge configuration?
No - the SBL1040CT contains two anodes and one shared cathode, making it suitable for dual half-wave or independent freewheeling paths, but not as a direct substitute for a four-terminal bridge rectifier. A full-wave bridge would require two SBL1040CT devices plus external wiring to replicate functionality.
Does the SBL1040CT meet automotive AEC-Q101 qualification requirements?
No - the SBL1040CT is not AEC-Q101 qualified. While its operating temperature range (–65°C to +150°C) overlaps with automotive requirements, Diodes Incorporated does not list this part in its AEC-Q101 qualified portfolio, and the datasheet contains no stress-test data or qualification report referencing AEC standards.
SBL1040CT 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):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 5 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
SBL1040CT FAQ
1.How can I place an order for SBL1040CT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL1040CT 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 SBL1040CT reliable?
The price and inventory of SBL1040CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL1040CT is usually 5 days.
3.What payment methods are accepted for SBL1040CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL1040CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL1040CT?
SBL1040CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL1040CT 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 SBL1040CT?
For technical support, including SBL1040CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL1040CT requirements.
6.How does Aetrix verify that SBL1040CT is sourced from the original manufacturer or authorized distributors?
All SBL1040CT 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 SBL1040CT meets industry standards.
7.What is the process for return or replacement of SBL1040CT?
All SBL1040CT units undergo pre-shipment inspection (PSI). If there is an issue with SBL1040CT, 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 SBL1040CT part is unused and in its original packaging.
Return procedure for SBL1040CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SBL1040CT 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
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BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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