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Vishay General Semiconductor - Diodes Division VS-40L15CTSTRL-M3
- Part No.:
- VS-40L15CTSTRL-M3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-40L15CTSTRL-M3.pdf
- Description:
- DIODE ARR SCHOTT 15V 20A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,699
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Product details
Overview
VS-40L15CTSTRL-M3 from Vishay Semiconductors is a high-performance dual Schottky rectifier module in D2PAK (TO-263AB) package, configured as a center-tapped common-cathode device rated for 15 V reverse voltage and 40 A total average forward current (2 × 20 A per leg), with ultralow 0.25 V forward voltage at 19 A and 125 °C junction temperature - optimized for OR-ing in redundant power supplies.
For engineers reviewing the VS-40L15CTSTRL-M3 datasheet, VS-40L15CTSTRL-M3 pinout, VS-40L15CTSTRL-M3 application, or VS-40L15CTSTRL-M3 equivalent, key selection criteria include its 125 °C TJ rating, 0.33 V max VF at 19 A/125 °C, 600 mA IRM at 100 °C, 1.5 °C/W RthJC per leg, and MSL Level 1 qualification - all critical for high-reliability parallel power subsystems.
Technical Context
This center-tap Schottky rectifier uses proprietary barrier technology enabling stable operation up to 125 °C junction temperature while maintaining low conduction loss. Its common-cathode configuration supports bidirectional current sharing between two anodes, making it suitable for active OR-ing controllers requiring matched thermal and electrical characteristics across both legs.
The device integrates guard ring protection and high-purity epoxy encapsulation for enhanced ruggedness and moisture resistance. It meets JEDEC JESD47 qualification and MSL Level 1 (245 °C peak reflow), with typical junction capacitance of 2000 pF at 5 V and dV/dt capability of 10,000 V/μs - supporting fast-switching DC/DC converters and reverse battery protection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 15 V - maximum working peak reverse voltage; defines safe blocking capability in OR-ing and reverse polarity protection. |
| IF(AV) | 40 A total (2 × 20 A per leg) - continuous DC current handling capacity under 50 % duty cycle at TC = 85 °C. |
| VF @ 19 A, 125 °C | 0.25 V typical - enables <1 W conduction loss per leg at full load, reducing thermal stress in compact power modules. |
| IRM @ 100 °C | 600 mA - low leakage ensures minimal standby power loss in always-on redundant systems. |
| RthJC | 1.5 °C/W per leg - allows direct heatsink mounting with predictable thermal rise for thermal design margining. |
| EAS | 10 mJ per leg - avalanche energy rating supports unclamped inductive switching events without failure. |
| dV/dt | 10,000 V/μs - high rate-of-change immunity prevents false turn-on during fast transients in high-frequency converters. |
Pinout & Package
VS-40L15CTSTRL-M3 is housed in a surface-mount D2PAK (TO-263AB) package with three terminals: Pin 1 (Anode 1), Pin 2 (Common Cathode), Pin 3 (Anode 2). The thermally enhanced plastic body includes an exposed copper thermal pad on the underside for efficient heat transfer to PCB copper planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input terminal for first Schottky die; connects to primary power rail in OR-ing configuration. |
| 2 | Common Cathode | Shared output node for both dies; ties to system output bus and provides single-point thermal path to heatsink. |
| 3 | Anode 2 | Input terminal for second Schottky die; connects to secondary or backup power rail. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow VF at high temperature | 0.25 V typical at 19 A and 125 °C - reduces conduction losses by >40 % vs. standard Schottkys at elevated ambient conditions. |
| Center-tap common-cathode topology | Enables symmetrical current sharing and simplified PCB layout for dual-input OR-ing without external balancing components. |
| Guard ring ruggedization | Improves long-term reliability under repetitive surge and mechanical stress, validated per JEDEC JESD47. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 245 °C peak without preconditioning - eliminates moisture sensitivity handling overhead. |
| Halogen-free, RoHS-compliant | M3 suffix confirms lead-free terminations and halogen-free molding compound - compliant with IPC/JEDEC J-STD-609A Class 1. |
Applications
| Redundant Server Power Supplies | Industrial PLC Power Modules |
|---|---|
Use Scenario: Dual 12 V input rails feeding a shared 12 V output bus in rack-mounted servers, where seamless switchover is required during hot-swap or fault events. IC Role / Device Role / Timing Role: Passive OR-ing diode replacing MOSFET-based ideal diodes in cost-sensitive designs requiring no control circuitry. Use Value: Enables zero-control OR-ing with <0.3 V forward drop, minimizing voltage derating and improving system efficiency over discrete diode solutions. | Use Scenario: 24 V DC power distribution in programmable logic controllers with dual upstream sources for fail-safe operation. IC Role / Device Role / Timing Role: Reverse polarity and backfeed protection element placed at each input channel before DC/DC conversion stage. Use Value: Prevents cross-conduction and backfeeding between channels while sustaining 125 °C ambient operation in enclosed enclosures. |
| Automotive ADAS Domain Controllers | Telecom Base Station Backup Power |
Use Scenario: Dual-battery (main + auxiliary) OR-ing in advanced driver-assistance systems requiring uninterrupted power during engine cranking. IC Role / Device Role / Timing Role: High-current Schottky rectifier providing low-loss path selection between batteries without control latency. Use Value: Maintains system uptime during cold-cranking dips (<6 V) due to low VF and robust 700 A IFSM surge rating. | Use Scenario: 48 V telecom rectifier shelf with battery backup, where multiple rectifiers feed a common bus with automatic redundancy. IC Role / Device Role / Timing Role: Primary OR-ing device in distributed power architecture, paired with monitoring ICs for fault isolation. Use Value: Delivers 40 A total current with <1.5 °C/W thermal resistance, enabling compact heatsink design and reduced board area vs. discrete alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VS-40L15CTS-M3 | Tubed packaging (50 pcs), identical electrical specs and D2PAK footprint - same die, same thermal performance. | No reel-specific handling; suited for prototyping or low-volume production with manual placement. | Select when tape-and-reel automation is not required and tube-based assembly is preferred. |
| VS-40L15CT-1-M3 | TO-262AA package (through-hole), same 15 V/40 A rating but higher RthJA (40 °C/W) and different mounting mechanics. | Used where through-hole reliability or legacy board compatibility is prioritized over thermal density. | Choose only if existing TO-262 footprint exists or forced-air cooling compensates for lower thermal efficiency. |
Compared with VS-40L15CT-1-M3, VS-40L15CTSTRL-M3 offers superior thermal performance via D2PAK's lower RthJC (1.5 vs. ~2.2 °C/W estimated) and surface-mount scalability; versus VS-40L15CTS-M3, it provides identical performance with automated SMT compatibility and higher volume packaging.
Availability
VS-40L15CTSTRL-M3 is available at Aetrix Electronics and suitable for redundant server power supplies, industrial PLC power modules, automotive ADAS domain controllers, and telecom base station backup power systems requiring stable component supply and long-term lifecycle support.
Supply support for VS-40L15CTSTRL-M3 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for industrial, automotive, and computing markets.
The VS-40L15CTSTRL-M3 belongs to Vishay's "L-series" Schottky rectifier family, engineered specifically for ultralow VF OR-ing applications in high-density, high-temperature power systems.
FAQ
What is the maximum junction temperature rating for VS-40L15CTSTRL-M3?
The VS-40L15CTSTRL-M3 is rated for a maximum junction temperature (TJ) of +125 °C, verified under VR < 5 V conditions. This rating enables reliable operation in high-ambient environments such as enclosed server chassis or industrial control cabinets. The device maintains specified VF and IRM performance up to this limit, with thermal design guidance provided in Figure 4 of the datasheet (RthJC = 1.5 °C/W per leg).
Does VS-40L15CTSTRL-M3 support automated SMT assembly?
Yes, VS-40L15CTSTRL-M3 is supplied in 13" plastic tape-and-reel format (800 units per reel) and qualified to MSL Level 1 per J-STD-020, allowing standard SMT reflow up to 245 °C peak without baking. Its D2PAK (TO-263AB) outline conforms to JEDEC standards, ensuring compatibility with industry-standard pick-and-place and reflow equipment.
How does the center-tap configuration of VS-40L15CTSTRL-M3 benefit OR-ing designs?
The center-tap common-cathode configuration of VS-40L15CTSTRL-M3 simplifies OR-ing implementation by providing matched electrical and thermal characteristics across both legs - eliminating need for external balancing resistors or separate thermal pads. This symmetry ensures equal current sharing and consistent VF drift with temperature, critical for stable parallel power rail operation in VS-40L15CTSTRL-M3-based systems.
What is the avalanche energy rating of VS-40L15CTSTRL-M3?
The VS-40L15CTSTRL-M3 has a non-repetitive avalanche energy rating (EAS) of 10 mJ per leg, measured at TJ = 25 °C with IAS = 2 A and L = 6 mH. This rating supports robustness against unclamped inductive switching events in DC/DC converter outputs or motor drive freewheeling paths, as validated in the unclamped inductive test circuit (Figure 8) of the datasheet.
Is VS-40L15CTSTRL-M3 halogen-free and RoHS-compliant?
Yes, the "-M3" suffix on VS-40L15CTSTRL-M3 certifies compliance with RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21. The device uses lead-free terminations and halogen-free epoxy encapsulation, meeting IPC/JEDEC J-STD-609A Class 1 definitions - confirmed in Vishay's material categorization documentation (www.vishay.com/doc?99912).
VS-40L15CTSTRL-M3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 15 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 410 mV @ 19 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 mA @ 15 V
- Operating Temperature - Junction:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-40L15CTSTRL-M3 FAQ
1.How can I place an order for VS-40L15CTSTRL-M3 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-40L15CTSTRL-M3 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 VS-40L15CTSTRL-M3 reliable?
The price and inventory of VS-40L15CTSTRL-M3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-40L15CTSTRL-M3 is usually 5 days.
3.What payment methods are accepted for VS-40L15CTSTRL-M3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-40L15CTSTRL-M3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-40L15CTSTRL-M3?
VS-40L15CTSTRL-M3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-40L15CTSTRL-M3 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 VS-40L15CTSTRL-M3?
For technical support, including VS-40L15CTSTRL-M3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-40L15CTSTRL-M3 requirements.
6.How does Aetrix verify that VS-40L15CTSTRL-M3 is sourced from the original manufacturer or authorized distributors?
All VS-40L15CTSTRL-M3 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 VS-40L15CTSTRL-M3 meets industry standards.
7.What is the process for return or replacement of VS-40L15CTSTRL-M3?
All VS-40L15CTSTRL-M3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-40L15CTSTRL-M3, 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 VS-40L15CTSTRL-M3 part is unused and in its original packaging.
Return procedure for VS-40L15CTSTRL-M3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-40L15CTSTRL-M3 Tags
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BAV99,215
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BAV99LT1G
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