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Vishay General Semiconductor - Diodes Division VS-20CTQ040STRR-M3
- Part No.:
- VS-20CTQ040STRR-M3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-20CTQ040STRR-M3.pdf
- Description:
- DIODE ARR SCHOTT 40V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,964
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Product details
Overview
VS-20CTQ040STRR-M3 from Vishay Semiconductors is a high-performance dual-anode Schottky rectifier in D2PAK (TO-263AB) package, configured as a center-tapped common-cathode device rated for 2 × 10 A average forward current, 40 V reverse voltage, and 0.57 V forward voltage at 10 A and 125 °C - optimized for high-frequency switching power supplies and reverse battery protection circuits.
For engineers reviewing the VS-20CTQ040STRR-M3 datasheet, VS-20CTQ040STRR-M3 pinout, VS-20CTQ040STRR-M3 application, or VS-20CTQ040STRR-M3 equivalent, key selection criteria include its 175 °C junction temperature rating, low leakage (15 mA at 125 °C), 13 mJ avalanche energy capability, and D2PAK thermal resistance of 3.25 °C/W per leg - critical for high-reliability industrial and automotive power designs.
Technical Context
This dual-die Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling center-tap transformer secondary rectification without external parallel diodes. Its proprietary barrier technology minimizes reverse leakage up to 175 °C TJ while maintaining low VF across temperature and load.
The device supports high dv/dt operation (10,000 V/μs) and exhibits 900 pF junction capacitance per leg at 5 V, with typical series inductance of 8.0 nH - characteristics essential for minimizing switching losses and EMI in synchronous buck converters and DC-DC modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 2 × 10 A - supports dual-leg continuous conduction mode in high-current SMPS outputs |
| VRRM | 40 V - suitable for 24 V nominal input systems with 50 % safety margin against transients |
| VF @ 10 A, 125 °C | 0.57 V - reduces forward conduction loss by ~30 % vs. standard silicon rectifiers at same current |
| IRM @ 125 °C | 15 mA - enables stable operation in high-temperature environments like under-hood automotive ECUs |
| EAS | 13 mJ - withstands unclamped inductive switching events in freewheeling applications without failure |
| RthJC (per leg) | 3.25 °C/W - allows >15 W dissipation per leg with 145 °C case temperature, supporting compact heatsink designs |
| dV/dt | 10,000 V/μs - prevents false turn-on during fast voltage transitions in high-speed switching topologies |
Pinout & Package
D2PAK (TO-263AB) surface-mount package with exposed thermal pad; 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2. Mounting torque: 6–12 kgf·cm (5–10 lbf·in); weight: 2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | First Schottky die anode - connects to one half of center-tapped transformer or split-rail source |
| 2 | Common Cathode | Shared cathode node for both dies - serves as output return path in full-wave rectification |
| 3 | Anode 2 | Second Schottky die anode - connects to second half of center-tapped winding or complementary rail |
Key Features
| Feature | Design Value |
|---|---|
| 175 °C maximum junction temperature | Enables operation in under-hood automotive, industrial motor drives, and sealed power enclosures without derating |
| Guard ring structure | Improves ruggedness against voltage overshoot and enhances long-term reliability in repetitive surge conditions |
| MSL Level 1 (245 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
| High-purity epoxy encapsulation | Provides superior mechanical strength and moisture resistance for harsh-environment deployments |
| JEDEC JESD47 qualified | Validated for robustness across temperature cycling, humidity, and mechanical stress per industry reliability standards |
Applications
| Switch-Mode Power Supply Output Rectification | Automotive Reverse Battery Protection |
|---|---|
Use Scenario: Secondary-side rectification in 24 V input DC-DC converters using center-tapped transformers. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier performing full-wave synchronous rectification with common cathode output. Use Value: 0.57 V VF at 125 °C reduces conduction loss by 1.4 W per leg vs. 0.75 V alternatives, improving efficiency by ≥1.2 % at 20 A load. |
Use Scenario: Preventing damage from accidental reverse polarity connection in vehicle infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Low-VF, high-TJ Schottky clamp protecting downstream 40 V-rated regulators and microcontrollers. Use Value: 15 mA IR at 125 °C ensures minimal standby current draw while surviving 175 °C under-hood ambient conditions. |
| Freewheeling Diode in Motor Drives | Industrial DC Power Distribution |
Use Scenario: Freewheeling path for brushed DC motor H-bridge outputs in factory automation controllers. IC Role / Device Role / Timing Role: Fast-recovery Schottky providing low-loss current recirculation during PWM off-time. Use Value: 10,000 V/μs dv/dt rating prevents parasitic turn-on during rapid voltage reversal, eliminating shoot-through risk. |
Use Scenario: OR-ing diode in redundant 24 V DC power feeds for programmable logic controllers and I/O modules. IC Role / Device Role / Timing Role: Dual-anode configuration allows single-device implementation of back-to-back diode redundancy. Use Value: 13 mJ EAS rating absorbs inductive kickback from solenoid loads without requiring external snubbers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS2045C | Same D2PAK package, 2 × 10 A, 45 V VRRM, but VF = 0.72 V @ 10 A/125 °C | Higher forward loss limits use in thermally constrained 24 V systems above 15 A | Select when higher reverse voltage margin is required and thermal headroom permits higher VF |
| ON Semiconductor NTS20100CT | D2PAK, 2 × 10 A, 40 V, VF = 0.61 V @ 10 A/125 °C, IR = 25 mA @ 125 °C | Higher leakage reduces suitability for high-temperature reverse-battery protection | Prefer for cost-sensitive industrial SMPS where 125 °C leakage < 20 mA is acceptable |
Compared with STPS2045C and NTS20100CT, VS-20CTQ040STRR-M3 delivers the lowest VF (0.57 V) and tightest IR (15 mA) at 125 °C among D2PAK dual Schottkys - making it optimal for thermally aggressive automotive and high-efficiency power applications where both conduction loss and leakage stability are critical.
Availability
VS-20CTQ040STRR-M3 is available at Aetrix Electronics and suitable for switching power supplies, automotive reverse battery protection, freewheeling diode circuits, and industrial DC power distribution requiring stable component supply and long-term manufacturing continuity.
Supply support for VS-20CTQ040STRR-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 automotive, industrial, and computing markets.
The VS-20CTQ...S-M3 series was developed specifically for high-temperature, high-efficiency power conversion - targeting next-generation 24 V and 48 V automotive subsystems and ruggedized industrial SMPS where thermal resilience and low conduction loss are non-negotiable.
FAQ
What is the maximum junction temperature rating for VS-20CTQ040STRR-M3?
The VS-20CTQ040STRR-M3 is rated for a maximum junction temperature of 175 °C, validated per JEDEC JESD47 qualification. This enables reliable operation in under-hood automotive environments and sealed industrial enclosures where ambient temperatures exceed 105 °C - a key differentiator versus standard 150 °C Schottky rectifiers. The 175 °C rating is sustained across its full voltage and current operating range.
Does VS-20CTQ040STRR-M3 support lead-free reflow soldering?
Yes, VS-20CTQ040STRR-M3 meets MSL Level 1 per J-STD-020 and is qualified for peak reflow temperatures up to 245 °C, fully compatible with standard lead-free soldering processes. Its high-purity epoxy encapsulation eliminates moisture sensitivity concerns, so no pre-baking is required before assembly - simplifying manufacturing flow and reducing process risk.
How does the center-tap configuration of VS-20CTQ040STRR-M3 benefit power supply design?
The center-tap configuration of VS-20CTQ040STRR-M3 integrates two Schottky dies with a shared cathode terminal (Pins 1 and 3 = anodes, Pin 2 = common cathode), enabling full-wave rectification from a center-tapped transformer secondary using a single device. This eliminates layout complexity and parasitic inductance associated with discrete dual-diode solutions, while ensuring matched thermal and electrical characteristics between legs - critical for balanced current sharing and reduced EMI.
What is the avalanche energy rating of VS-20CTQ040STRR-M3, and why does it matter?
VS-20CTQ040STRR-M3 has a non-repetitive avalanche energy rating (EAS) of 13 mJ per leg at TJ = 25 °C. This specification quantifies its ability to absorb inductive energy during unclamped switching events - such as freewheeling in motor drivers or transient recovery in DC-DC converters. A 13 mJ rating allows safe operation without external snubbers in typical 24 V systems with ≤6.5 mH inductance and 2 A current, enhancing system robustness and reducing BOM count.
Is VS-20CTQ040STRR-M3 pin-compatible with other Vishay D2PAK Schottky rectifiers?
VS-20CTQ040STRR-M3 uses the standard D2PAK (TO-263AB) outline with identical mechanical dimensions and 3-pin terminal layout (Anode–Cathode–Anode) as other Vishay D2PAK Schottky rectifiers like VS-20CTQ035S-M3 and VS-20CTQ045S-M3. However, voltage rating and thermal performance differ - so while PCB footprint is identical, designers must verify VR, VF, and RthJC alignment with system requirements before substitution.
VS-20CTQ040STRR-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):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 640 mV @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 mA @ 40 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-20CTQ040STRR-M3 FAQ
1.How can I place an order for VS-20CTQ040STRR-M3 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-20CTQ040STRR-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-20CTQ040STRR-M3 reliable?
The price and inventory of VS-20CTQ040STRR-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-20CTQ040STRR-M3 is usually 5 days.
3.What payment methods are accepted for VS-20CTQ040STRR-M3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-20CTQ040STRR-M3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-20CTQ040STRR-M3?
VS-20CTQ040STRR-M3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-20CTQ040STRR-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-20CTQ040STRR-M3?
For technical support, including VS-20CTQ040STRR-M3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-20CTQ040STRR-M3 requirements.
6.How does Aetrix verify that VS-20CTQ040STRR-M3 is sourced from the original manufacturer or authorized distributors?
All VS-20CTQ040STRR-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-20CTQ040STRR-M3 meets industry standards.
7.What is the process for return or replacement of VS-20CTQ040STRR-M3?
All VS-20CTQ040STRR-M3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-20CTQ040STRR-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-20CTQ040STRR-M3 part is unused and in its original packaging.
Return procedure for VS-20CTQ040STRR-M3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-20CTQ040STRR-M3 Tags
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Diodes Incorporated
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BAT54C-7-F
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
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BAV70LT1G
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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onsemi
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MMBD1503-TP
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BAV99WT1G
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