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Diodes Incorporated SBL2040PT
- Part No.:
- SBL2040PT
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-3P-3, SC-65-3
- Datasheet:
-
SBL2040PT.pdf
- Description:
- DIODE ARRAY SCHOTT 40V 20A TO-3P
- Quantity:
- Payment:
- Shipping:
Inventory:6,092
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SBL2040PT from Diodes Incorporated is a 20A, 40V Schottky barrier rectifier in TO-3P package, featuring low forward voltage drop (0.55V @ 10A, 25°C), high surge capability (250A @ 8.3ms), and thermal resistance of 2.5°C/W - used for polarity protection and free-wheeling in DC-DC converters and industrial power supplies.
For engineers reviewing the SBL2040PT datasheet, SBL2040PT pinout, SBL2040PT application, or SBL2040PT equivalent, key selection criteria include peak reverse voltage rating, forward voltage at operating current, thermal resistance under heatsink mounting, and surge current handling in motor drive flyback paths.
Technical Context
This device uses guard ring die construction to enhance transient protection and reliability under repetitive surge stress. Its Schottky barrier architecture enables fast switching with negligible reverse recovery time, making it suitable for high-frequency rectification up to several hundred kHz.
The TO-3P package provides robust thermal dissipation via case-mount heatsinking, supporting continuous 20A average output current only when case temperature is maintained ≤100°C per derating curve. Junction-to-case thermal resistance is fixed at 2.5°C/W under specified mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum non-repetitive reverse voltage the device blocks without breakdown. |
| IO @ TC=100°C | 20 A - Continuous average forward current sustainable with case temperature held at 100°C using heatsink. |
| VFM @ IF=10A, 25°C | 0.55 V - Forward voltage drop determining conduction loss in high-current paths. |
| IFSM | 250 A - Peak non-repetitive surge current tolerance for 8.3ms half-sine waveform. |
| RθJC | 2.5 °C/W - Thermal resistance from junction to case, defining heatsink sizing requirement. |
| IRM @ 25°C | 1.0 mA - Reverse leakage at rated blocking voltage, affecting standby power loss. |
| CT @ 1MHz, 4V | 1100 pF - Junction capacitance influencing high-frequency switching noise and EMI. |
Pinout & Package
TO-3P package: insulated plastic case with three leads - anode, cathode, and metal tab (cathode-connected). Mounting requires electrically isolated heatsink due to cathode tie to tab.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input terminal for forward conduction | Connected to source-side of rectification path; polarity-sensitive for correct current flow. |
| Cathode (Lead 2) | Output terminal for forward conduction | Electrically tied to metal tab; must be isolated from chassis unless circuit ground reference permits. |
| Metal Tab | Cathode connection and thermal path | Primary heat transfer surface; requires thermal interface material and electrical isolation when mounted. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ruggedness against voltage transients and localized avalanche during overvoltage events. |
| Low VFM (0.55V @ 10A) | Reduces conduction losses by ~30% vs. comparable silicon diodes, improving system efficiency in 12–48V rails. |
| 250A IFSM rating | Supports reliable operation in motor drive freewheeling where inductive kick exceeds steady-state current. |
| TO-3P mechanical robustness | Enables secure mounting in industrial environments with vibration and thermal cycling up to 150°C junction. |
Applications
| DC-DC Converter Output Rectification | Industrial Motor Drive Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in 24V/48V isolated DC-DC modules. IC Role / Device Role / Timing Role: Unidirectional power path clamp preventing reverse current flow during PWM dead-time. Use Value: 0.55V forward drop minimizes conduction loss at 10–20A loads, directly improving conversion efficiency by 1.2–1.8%. | Use Scenario: Flyback path across brushed DC motor windings during PWM turn-off. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode clamping inductive energy into supply rail. Use Value: 250A surge rating handles repeated 150A motor stall transients without degradation. |
| Automotive Battery Polarity Protection | Telecom Power Supply Input Stage |
Use Scenario: Series-connected reverse-polarity guard ahead of 12V vehicle electronics. IC Role / Device Role / Timing Role: High-current blocking element activated only during incorrect battery connection. Use Value: 40V VRRM safely withstands load-dump spikes up to 35V while sustaining 20A fault current. | Use Scenario: Input rectification stage in -48V telecom shelf power systems. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element handling continuous 20A input current. Use Value: 2.5°C/W RθJC enables stable operation at full load with passive heatsinking in confined chassis space. |
Availability
SBL2040PT is available at Aetrix Electronics and suitable for DC-DC converter output rectification, industrial motor drive freewheeling, and automotive battery polarity protection requiring stable component supply and long-term industrial availability.
Supply support for SBL2040PT 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 US.
The SBL2040PT belongs to Diodes' Schottky rectifier product line, engineered for high-efficiency, high-current power conversion in industrial, computing, and telecom infrastructure applications.
FAQ
Is SBL2040PT RoHS compliant?
Yes, SBL2040PT features lead-free finish and complies with RoHS Directive 2011/65/EU (Revision 13.2.2003), including exemptions for glass and high-temperature solder as defined in Annexes 5 and 7 of the EU Directive.
What is the maximum junction temperature for SBL2040PT?
The absolute maximum junction temperature is +150°C, with storage temperature range matching at –65°C to +150°C. Operation above 150°C risks permanent parametric shift or catastrophic failure.
Can SBL2040PT replace a standard PN-junction rectifier in existing designs?
Yes, but only if reverse voltage requirements are ≤40V and layout accommodates lower forward voltage (0.55V vs. ~0.9V for silicon), which may require recalculation of thermal margins and snubber networks due to faster switching and higher dI/dt.
Does SBL2040PT have a specified reverse recovery time (trr)?
No - as a Schottky barrier rectifier, SBL2040PT has no minority-carrier storage mechanism; its reverse recovery is effectively zero, eliminating switching losses associated with trr in PN diodes.
SBL2040PT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-3P-3, SC-65-3
- 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):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 40 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-3P
SBL2040PT FAQ
1.How can I place an order for SBL2040PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SBL2040PT 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 SBL2040PT reliable?
The price and inventory of SBL2040PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SBL2040PT is usually 5 days.
3.What payment methods are accepted for SBL2040PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SBL2040PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SBL2040PT?
SBL2040PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SBL2040PT 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 SBL2040PT?
For technical support, including SBL2040PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SBL2040PT requirements.
6.How does Aetrix verify that SBL2040PT is sourced from the original manufacturer or authorized distributors?
All SBL2040PT 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 SBL2040PT meets industry standards.
7.What is the process for return or replacement of SBL2040PT?
All SBL2040PT units undergo pre-shipment inspection (PSI). If there is an issue with SBL2040PT, 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 SBL2040PT part is unused and in its original packaging.
Return procedure for SBL2040PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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