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Vishay General Semiconductor - Diodes Division VS-20CTQ035STRR-M3
- Part No.:
- VS-20CTQ035STRR-M3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-20CTQ035STRR-M3.pdf
- Description:
- DIODE ARR SCHOTT 35V 10A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,803
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Product details
Overview
VS-20CTQ035STRR-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 35 V reverse voltage, 2 × 10 A average forward current per leg, 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-20CTQ035STRR-M3 datasheet, VS-20CTQ035STRR-M3 pinout, VS-20CTQ035STRR-M3 application, or VS-20CTQ035STRR-M3 equivalent, key selection criteria include its 175 °C junction temperature rating, low 900 pF junction capacitance per leg, 10,000 V/μs dV/dt capability, and MSL Level 1 moisture sensitivity - all critical for automotive-grade DC/DC converters and industrial freewheeling designs.
Technical Context
This dual-die Schottky rectifier integrates two identical 35 V, 10 A legs sharing a common cathode terminal, enabling compact center-tap configurations without external interconnects. Its proprietary barrier technology minimizes reverse leakage to 15 mA at 125 °C while sustaining 175 °C TJ operation - a requirement for under-hood automotive power stages.
The device uses high-purity, high-temperature epoxy encapsulation and a guard ring structure to ensure mechanical ruggedness and long-term reliability under thermal cycling and surge stress. Thermal resistance is specified at 3.25 °C/W (junction-to-case per leg), supporting high-power density layouts when mounted on a heatsink with 0.50 °C/W case-to-sink interface resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Max DC reverse voltage) | 35 V - defines maximum continuous blocking capability per leg; sets upper limit for input voltage rails in 24 V automotive systems. |
| IF(AV) per leg | 10 A - average forward current rating per anode leg at 50 % duty cycle and TC = 145 °C; supports sustained 20 A total package output. |
| VFM @ 10 A, 125 °C | 0.57 V - low conduction loss enables >95 % efficiency in 12–24 V buck converters operating at elevated ambient temperatures. |
| IRM @ 125 °C | 15 mA - low reverse leakage preserves system standby power budget in always-on vehicle modules. |
| RthJC per leg | 3.25 °C/W - enables thermal design with ≤32.5 W dissipation per leg before reaching 175 °C junction limit at 145 °C case temperature. |
| EAS per leg | 13 mJ - avalanche energy rating supports unclamped inductive switching events in motor drive freewheel paths. |
| dV/dt rating | 10,000 V/μs - ensures robust turn-off behavior in fast-switching SiC/GaN-based topologies without spurious conduction. |
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).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode 1 | Input connection for first Schottky die; electrically isolated from Anode 2; used in center-tap transformer secondaries or dual-input rectification. |
| 2 | Common Cathode | Shared output node for both dies; must be connected to ground or low-side return path; thermally coupled to exposed copper pad for heat dissipation. |
| 3 | Anode 2 | Input connection for second Schottky die; symmetrical to Pin 1; enables balanced current sharing in push-pull or dual-phase topologies. |
Key Features
| Feature | Design Value |
|---|---|
| 175 °C maximum junction temperature | Enables operation in engine bay environments without derating; eliminates need for oversized heatsinks in space-constrained automotive ECUs. |
| Center-tap common-cathode configuration | Reduces PCB trace count and layout complexity vs. discrete dual-diode solutions; supports single-point grounding for noise-sensitive analog subsystems. |
| Guard ring ruggedization | Improves edge termination reliability under high dv/dt and thermal stress; extends lifetime in cyclic load applications like power tool battery packs. |
| MSL Level 1 (245 °C peak reflow) | Permits standard lead-free SMT assembly without baking or special handling; compatible with high-volume automotive electronics manufacturing lines. |
| JEDEC JESD47 qualification | Validates robustness against temperature cycling, humidity, and mechanical shock - required for AEC-Q101-compliant automotive power designs. |
Applications
| Automotive DC/DC Converters | Industrial Freewheeling Diodes |
|---|---|
|
Use Scenario: Step-down conversion from 24 V battery to 5 V/3.3 V for ADAS camera modules and radar processors. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck converter; handles high-frequency switching currents with minimal conduction loss. Use Value: 0.57 V VF at 125 °C reduces power loss by ~1.1 W per leg vs. comparable 45 V parts, directly improving thermal margin in sealed enclosures. |
Use Scenario: Inductive load suppression in PLC output driver stages controlling solenoids and valves. IC Role / Device Role / Timing Role: Freewheeling path for stored magnetic energy during MOSFET turn-off; clamps voltage spikes within safe limits. Use Value: 13 mJ EAS rating absorbs typical 12 V/2 A inductive transients without degradation, eliminating need for external snubbers. |
| Reverse Battery Protection | Server PSU Secondary Side Rectification |
|
Use Scenario: Preventing damage during incorrect battery installation in commercial vehicle telematics units. IC Role / Device Role / Timing Role: Low-loss series-blocking element placed between battery terminal and main power rail. Use Value: 15 mA IRM at 125 °C ensures <100 μW standby dissipation, preserving battery life over multi-year deployments. |
Use Scenario: High-efficiency 12 V output rectification in 80 PLUS Titanium server PSUs using GaN FETs. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in LLC resonant converters operating above 300 kHz. Use Value: 900 pF CT and 8.0 nH LS minimize switching losses and EMI generation, supporting >98 % full-load efficiency targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS2035CG | Same 35 V VR, 20 A total, D2PAK package; VF = 0.60 V @ 10 A, 125 °C; RthJC = 3.5 °C/W; no guard ring. | Lacks guard ring and JEDEC JESD47 qualification; not recommended for automotive under-hood use. | Lower-cost option for industrial non-automotive converters where ruggedness and 175 °C operation are not required. |
| ON Semiconductor NTS20350CTG | 35 V VR, 2 × 10 A, D2PAK; VF = 0.59 V @ 10 A, 125 °C; TJ max = 150 °C; MSL Level 3. | 150 °C max junction temperature limits use in high-ambient environments; requires baking before SMT assembly. | Suitable for cost-sensitive telecom power supplies with controlled ambient conditions and lower thermal stress profiles. |
Compared with STPS2035CG and NTS20350CTG, the VS-20CTQ035STRR-M3 delivers superior thermal resilience (175 °C TJ), enhanced ruggedness (guard ring + JESD47), and simplified manufacturing (MSL Level 1), making it the preferred choice for mission-critical automotive and industrial power stages where reliability outweighs marginal BOM cost savings.
Availability
VS-20CTQ035STRR-M3 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial PLC output stages, reverse battery protection circuits, and server PSU secondary-side rectification requiring stable component supply across extended production lifecycles.
Supply support for VS-20CTQ035STRR-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with leadership in power rectification, precision resistors, and optoelectronics.
The VS-20CTQ...S-M3 series belongs to Vishay's high-reliability Schottky rectifier product line, engineered specifically for demanding automotive and industrial power conversion applications where high temperature operation, low leakage, and robust surge handling are mandatory.
FAQ
What is the maximum junction temperature rating for the VS-20CTQ035STRR-M3?
The VS-20CTQ035STRR-M3 has a maximum junction temperature (TJ) rating of +175 °C, verified per JEDEC JESD47 qualification. This allows uninterrupted operation in under-hood automotive environments and high-ambient industrial settings where conventional Schottky diodes would require significant derating. The VS-20CTQ035STRR-M3 maintains stable electrical performance up to this limit due to its proprietary barrier technology and high-temperature epoxy encapsulation.
Is the VS-20CTQ035STRR-M3 suitable for reverse battery protection in automotive applications?
Yes, the VS-20CTQ035STRR-M3 is widely deployed for reverse battery protection in automotive ECUs and telematics units. Its 35 V VR rating covers 24 V nominal systems with headroom for load dump transients, while its 15 mA IRM at 125 °C ensures minimal standby power loss. The VS-20CTQ035STRR-M3 also meets MSL Level 1 and JEDEC JESD47 requirements - essential for AEC-Q101-aligned designs.
What is the thermal resistance from junction to case for the VS-20CTQ035STRR-M3?
The VS-20CTQ035STRR-M3 specifies a maximum thermal resistance of 3.25 °C/W from junction to case per leg under DC operation. This value is measured with the device mounted on a standard heatsink using greased interface; actual thermal performance depends on PCB copper area, heatsink size, and airflow. The VS-20CTQ035STRR-M3's exposed thermal pad must be soldered to a minimum 11 mm × 9.65 mm copper pour for optimal heat transfer.
Does the VS-20CTQ035STRR-M3 have a guard ring structure?
Yes, the VS-20CTQ035STRR-M3 incorporates a guard ring for enhanced edge termination ruggedness and long-term reliability under high dv/dt and thermal cycling stress. This feature is explicitly documented in the Vishay datasheet (Document Number: 94932) and contributes to its qualification per JEDEC JESD47 - distinguishing it from many competing Schottky rectifiers that omit this structural reinforcement.
What packaging format does the VS-20CTQ035STRR-M3 ship in?
The VS-20CTQ035STRR-M3 ships in 13-inch plastic tape-and-reel format with 800 units per reel (TRR = right-oriented reel for D2PAK). This packaging is optimized for automated SMT placement and complies with ESD-safe handling standards. The "-M3" suffix confirms halogen-free, RoHS-compliant, and lead (Pb)-free termination - fully aligned with modern environmental compliance requirements.
VS-20CTQ035STRR-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):
- 35 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 @ 35 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-20CTQ035STRR-M3 FAQ
1.How can I place an order for VS-20CTQ035STRR-M3 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-20CTQ035STRR-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-20CTQ035STRR-M3 reliable?
The price and inventory of VS-20CTQ035STRR-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-20CTQ035STRR-M3 is usually 5 days.
3.What payment methods are accepted for VS-20CTQ035STRR-M3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-20CTQ035STRR-M3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-20CTQ035STRR-M3?
VS-20CTQ035STRR-M3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-20CTQ035STRR-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-20CTQ035STRR-M3?
For technical support, including VS-20CTQ035STRR-M3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-20CTQ035STRR-M3 requirements.
6.How does Aetrix verify that VS-20CTQ035STRR-M3 is sourced from the original manufacturer or authorized distributors?
All VS-20CTQ035STRR-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-20CTQ035STRR-M3 meets industry standards.
7.What is the process for return or replacement of VS-20CTQ035STRR-M3?
All VS-20CTQ035STRR-M3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-20CTQ035STRR-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-20CTQ035STRR-M3 part is unused and in its original packaging.
Return procedure for VS-20CTQ035STRR-M3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-20CTQ035STRR-M3 Tags
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