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Vishay General Semiconductor - Diodes Division VS-VSKCS201/045
- Part No.:
- VS-VSKCS201/045
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- ADD-A-PAK (3)
- Datasheet:
-
VS-VSKCS201/045.pdf
- Description:
- DIODE MOD SCHOT 45V 100A ADDAPAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,390
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Product details
Overview
VS-VSKCS201/045 from Vishay Semiconductors is a 45 V, 200 A average current Schottky rectifier power module in AAP Gen 7 (TO-240AA) package with common-cathode dual-diode configuration, optimized for low reverse leakage at 175 °C junction temperature and used in high-current industrial switching power supplies, UPS systems, and welding equipment.
For engineers reviewing the VS-VSKCS201/045 datasheet, VS-VSKCS201/045 pinout, VS-VSKCS201/045 application, or VS-VSKCS201/045 equivalent, key selection criteria include its 0.69 V forward voltage at 100 A and 125 °C, 0.52 °C/W thermal resistance per leg, 8600 A non-repetitive surge rating, and UL E78996 approval for industrial-level reliability.
Technical Context
This dual common-cathode Schottky rectifier employs Vishay's proprietary barrier technology to sustain reliable operation up to 175 °C junction temperature while maintaining low forward voltage (0.69 V @ 100 A, 125 °C) and low thermal resistance (0.52 °C/W per leg). Its exposed direct-bonded copper substrate enables high thermal performance and simplified heatsink mounting.
The module supports high-frequency switching applications due to low junction capacitance (5200 pF @ 5 V) and fast voltage transient immunity (10,000 V/μs dV/dt), with robust surge capability (8600 A IFSM, 5 μs sine) and reverse battery protection functionality enabled by low leakage (90 mA @ 125 °C, rated VR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 200 A average forward current per module - supports high-power DC output stages without parallel devices |
| VR | 45 V maximum DC reverse voltage - suitable for 36 V nominal bus systems with margin |
| VFM | 0.69 V @ 100 A, 125 °C - reduces conduction loss and thermal stress in continuous-duty converters |
| RthJC | 0.52 °C/W per leg - enables efficient heat transfer to heatsink under full load |
| IFSM | 8600 A non-repetitive surge current (5 μs sine) - withstands inrush and fault transients in welders and plating supplies |
| TJ Range | –55 °C to +175 °C - qualified for harsh industrial environments including enclosed UPS cabinets |
| IRM | 90 mA max reverse leakage @ 125 °C - ensures stable freewheeling behavior at elevated temperatures |
Pinout & Package
AAP Gen 7 (TO-240AA) is a thermally enhanced, insulated power module with two anode terminals (A1, A2), one common cathode terminal (K), and two isolated mounting screw holes (M1, M2) compatible with JEDEC TO-240AA footprint. The case serves as the cathode return path and provides electrical isolation up to 3600 V (1 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first high-current path; electrically isolated from A2 and K |
| A2 | Anode of Diode 2 | Input terminal for second independent high-current path; shares cathode with A1 |
| K | Common Cathode | Single low-inductance output node for both diodes; also functions as heatsink interface and isolation barrier |
| M1, M2 | Mounting Screws | Electrically isolated mechanical attachment points; torque spec: 4 Nm ±10 % with thermal compound |
Key Features
| Feature | Design Value |
|---|---|
| 175 °C TJ operation | Enables use in sealed enclosures or high-ambient industrial settings without derating |
| Low VF at high temperature | 0.69 V @ 100 A, 125 °C minimizes conduction loss where cooling is constrained |
| Exposed DBC substrate | Direct copper-to-heatsink thermal path reduces RthJC by >30 % vs. standard molded packages |
| UL E78996 certified | Validates insulation integrity and flammability compliance for safety-critical industrial systems |
| Common-cathode dual-diode | Reduces component count and layout area in dual-output or phase-leg freewheeling topologies |
Applications
| High-Current Switching Power Supplies | Uninterruptible Power Systems (UPS) |
|---|---|
Use Scenario: Secondary-side rectification in 10–20 kW telecom or server PSUs operating at 100 kHz–500 kHz. IC Role / Device Role / Timing Role: Dual common-cathode Schottky rectifier providing low-loss synchronous rectification replacement for MOSFETs or conventional diodes. Use Value: 0.69 V VF at 125 °C cuts conduction loss by ~25 % vs. legacy 60 V Schottkys, improving efficiency and reducing heatsink size. | Use Scenario: Battery-charger and inverter output stage in 3-phase online UPS units with 36 V DC bus. IC Role / Device Role / Timing Role: Freewheeling and reverse-battery protection diode in bidirectional converter legs. Use Value: 90 mA IR at 125 °C prevents thermal runaway during extended backup operation; 8600 A IFSM handles short-circuit faults. |
| Industrial Plating Power Supplies | Resistance Welding Equipment |
Use Scenario: DC output rectification in 50–100 V, 5–15 kA electroplating rectifiers with forced-air or liquid cooling. IC Role / Device Role / Timing Role: High-average-current main rectifier delivering ripple-free DC to electrolytic tanks. Use Value: 200 A IF(AV) rating eliminates need for paralleling; 0.52 °C/W RthJC sustains 175 °C TJ under 100 % duty cycle. | Use Scenario: Secondary-side rectification in medium-frequency transformer-based spot welders with 1–10 ms pulse durations. IC Role / Device Role / Timing Role: Pulse-handling rectifier converting AC secondary to DC weld current with minimal voltage overshoot. Use Value: 10,000 V/μs dV/dt rating suppresses turn-off spikes; 7.0 nH LS limits ringing in high-di/dt weld pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKY201/045 | Same AAP Gen 7 package, but single-diode configuration (no common cathode); identical VF and TJ ratings | Lacks dual-anode integration - requires two devices and extra PCB routing for dual-path designs | Select when only one high-current path is needed or when layout flexibility outweighs component count savings |
| IXYS DSSK20-045B | TO-247-3L package; higher VF (0.82 V @ 100 A, 125 °C); lower IFSM (6000 A); no UL certification | Requires larger heatsink due to higher RthJC (0.75 °C/W); not approved for safety-critical industrial deployments | Consider only for cost-sensitive, non-certified designs where space permits larger thermal solution |
Compared with VSKY201/045 and DSSK20-045B, the VS-VSKCS201/045 uniquely delivers dual-anode integration in a UL-certified, thermally optimized module - enabling compact, high-reliability rectification in multi-rail or phase-leg topologies without sacrificing surge immunity or high-temperature stability.
Availability
VS-VSKCS201/045 is available at Aetrix Electronics and suitable for high-current switching power supplies, uninterruptible power systems (UPS), and industrial plating power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for VS-VSKCS201/045 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 power modules engineered for industrial, automotive, and computing applications.
The VS-VSKCS201/045 belongs to Vishay's AAP Gen 7 ADD-A-PAK Schottky rectifier family, designed specifically for high-efficiency, high-temperature industrial power conversion where thermal performance, surge robustness, and safety certification are critical.
FAQ
What is the maximum junction temperature rating for VS-VSKCS201/045?
The VS-VSKCS201/045 is rated for continuous operation up to +175 °C junction temperature, validated through Vishay's industrial qualification standards. This rating is enabled by proprietary barrier technology and the exposed direct-bonded copper substrate in the AAP Gen 7 package. Operation at this temperature requires adherence to the derating curves in Figure 5 of the datasheet (Document Number 93233), particularly regarding case temperature limits versus average forward current.
Does VS-VSKCS201/045 support reverse battery protection applications?
Yes, the VS-VSKCS201/045 is explicitly cited in its datasheet for reverse battery protection. Its low reverse leakage (90 mA max at 125 °C and rated VR) and high surge capability (8600 A IFSM) make it suitable for blocking reverse polarity in 36 V vehicle or industrial battery systems. The common-cathode configuration allows both battery inputs to share a single protected output rail without additional diodes.
What is the thermal resistance from junction to case per leg for VS-VSKCS201/045?
The VS-VSKCS201/045 has a maximum thermal resistance of 0.52 °C/W per leg (RthJC) under DC operation, measured from junction to the case surface at the cathode terminal. This value is confirmed in the Thermal-Mechanical Specifications table (Document Number 93233, page 2) and reflects the performance of the exposed DBC substrate. Effective heatsinking requires proper mounting torque (4 Nm ±10 %) and thermal interface material.
Is VS-VSKCS201/045 UL certified?
Yes, the VS-VSKCS201/045 is UL approved under file E78996, as stated in the Features section of its datasheet. This certification covers insulation integrity, flammability (UL 94 V-0), and dielectric withstand (3600 V for 1 s), confirming suitability for safety-critical industrial equipment such as UPS systems and plating rectifiers where regulatory compliance is mandatory.
What is the typical series inductance of VS-VSKCS201/045?
The typical series inductance (LS) of the VS-VSKCS201/045 is 7.0 nH, measured lead-to-lead at 5 mm from the package body, as specified in the Electrical Specifications table (Document Number 93233, page 2). This low inductance supports high di/dt applications like resistance welding, minimizing voltage overshoot during fast turn-off and reducing snubber requirements in high-frequency converters.
VS-VSKCS201/045 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- ADD-A-PAK (3)
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 100A
- Voltage - Forward (Vf) (Max) @ If:
- 720 mV @ 100 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 mA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- ADD-A-PAK®
VS-VSKCS201/045 FAQ
1.How can I place an order for VS-VSKCS201/045 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-VSKCS201/045 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-VSKCS201/045 reliable?
The price and inventory of VS-VSKCS201/045 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-VSKCS201/045 is usually 5 days.
3.What payment methods are accepted for VS-VSKCS201/045?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-VSKCS201/045 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-VSKCS201/045?
VS-VSKCS201/045 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-VSKCS201/045 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-VSKCS201/045?
For technical support, including VS-VSKCS201/045 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-VSKCS201/045 requirements.
6.How does Aetrix verify that VS-VSKCS201/045 is sourced from the original manufacturer or authorized distributors?
All VS-VSKCS201/045 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-VSKCS201/045 meets industry standards.
7.What is the process for return or replacement of VS-VSKCS201/045?
All VS-VSKCS201/045 units undergo pre-shipment inspection (PSI). If there is an issue with VS-VSKCS201/045, 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-VSKCS201/045 part is unused and in its original packaging.
Return procedure for VS-VSKCS201/045:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-VSKCS201/045 Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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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
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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