Vishay General Semiconductor - Diodes Division 200CNQ035
- Part No.:
- 200CNQ035
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-244AB
- Datasheet:
-
200CNQ035.pdf
- Description:
- DIODE MOD SCHOT 35V 100A TO244AB
- Quantity:
- Payment:

- Shipping:

Inventory:4,978
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Product details
Overview
200CNQ035 from Infineon Technologies is a center-tap Schottky rectifier module optimized for high-current DC-DC conversion, featuring 35 V maximum reverse voltage, 200 A total average forward current (100 A per leg), 0.49 V forward voltage at 100 A/125°C, and operation up to 150°C junction temperature. It serves as a low-loss freewheeling diode in industrial UPS systems and plating power supplies.
For engineers reviewing the 200CNQ035 datasheet, 200CNQ035 pinout, 200CNQ035 application, or 200CNQ035 equivalent, key selection criteria include thermal resistance (0.20°C/W per package), reverse leakage (500 mA at 125°C), ruggedness-enhancing guard ring, TO-244AB mechanical outline, and center-tap configuration for dual-leg synchronous rectification.
Technical Context
The 200CNQ035 integrates two parallel-connected Schottky diodes sharing a common cathode terminal and separate anode terminals (Anode 1, Anode 2), forming a center-tap topology ideal for full-wave rectification without transformer center-tap winding. Its proprietary barrier technology enables stable 150°C operation with low IRM drift.
Thermal design is enabled by low RthJC (0.20°C/W per package) and RthCS (0.10°C/W to greased heatsink), while its 7.0 nH series inductance and 5200 pF junction capacitance per leg support high-frequency switching up to frequencies limited by VA = 1.5 × VR (52.5 V typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 35 V - Maximum DC reverse blocking voltage per leg; defines safe operating limit in rectifier and freewheeling applications. |
| IF(AV) per leg | 100 A - Average forward current rating per diode leg under 50% duty cycle, rectangular waveform, TC = 114°C. |
| VF @ 100A/125°C | 0.49 V - Confirmed forward drop per leg at rated current and elevated temperature; directly determines conduction loss. |
| RthJC (per package) | 0.20 °C/W - Junction-to-case thermal resistance for the entire module; critical for heatsink sizing in high-power designs. |
| IRM @ 125°C | 500 mA - Maximum reverse leakage per leg at 125°C; impacts standby loss and thermal runaway risk in parallel configurations. |
| TJ range | −55 to +150°C - Validated operating junction temperature range; supports industrial and plating environments without derating. |
| dv/dt rating | 10,000 V/µs - Voltage rate-of-change immunity; ensures robustness against fast transients in inductive switching circuits. |
Pinout & Package
Package: TO-244AB (Modified JEDEC), metal-base insulated module with isolated mounting surface, center-hole 1/4-20 slotted hex terminal, and two anode lugs (Anode 1, Anode 2) plus one common cathode lug.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input anode of first Schottky diode leg | Connects to AC input or switching node side 1; carries up to 100 A average forward current. |
| Anode 2 | Input anode of second Schottky diode leg | Connects to AC input or switching node side 2; electrically symmetrical to Anode 1. |
| Common Cathode | Shared cathode output node | Delivers full-wave rectified DC output; serves as reference point for both legs and thermal path to case. |
Key Features
| Feature | Design Value |
|---|---|
| Center-tap Schottky topology | Enables full-wave rectification with single-output DC bus and simplified transformer secondary design. |
| High-temperature epoxy encapsulation | Provides mechanical integrity and moisture resistance at sustained 150°C operation, eliminating delamination risk. |
| Guard ring structure | Prevents edge breakdown under high dv/dt and high-temperature reverse bias, extending lifetime in harsh conditions. |
| Low RthJC (0.20°C/W per package) | Allows direct mounting to heatsink with minimal thermal interface resistance, supporting compact thermal solutions. |
| Low VF slope resistance (0.81 mΩ) | Ensures predictable linear conduction loss increase with current-critical for accurate power loss modeling. |
Applications
| Industrial UPS Systems | Electroplating Power Supplies |
|---|---|
Use Scenario: High-current DC bus rectification in three-phase IGBT-based UPS inverters during battery charging and line-interactive mode. IC Role / Device Role / Timing Role: Center-tap Schottky rectifier module providing low-loss, high-reliability AC-to-DC conversion on the charger input stage. Use Value: 0.49 V VF at 100 A/125°C reduces conduction loss by ~35% vs. comparable Si diodes, lowering thermal load and fan requirements. |
Use Scenario: Constant-current DC output generation for metal finishing tanks requiring ripple-free 10–20 kA at 6–24 V. IC Role / Device Role / Timing Role: Primary freewheeling and rectification element in phase-controlled SCR or IGBT converter front-ends. Use Value: 150°C TJ rating and 500 mA IRM at 125°C ensure stable performance despite ambient temperatures exceeding 70°C near plating baths. |
| Welding Equipment | Reverse Battery Protection |
Use Scenario: Output rectification in inverter-based arc welding machines with pulsed DC output and high peak currents. IC Role / Device Role / Timing Role: Dual-leg Schottky module handling bidirectional energy recovery and high-duty-cycle forward conduction. Use Value: 26,000 A IFSM surge rating withstands repetitive short-circuit events during arc striking without degradation. |
Use Scenario: Polarity protection in 24 V vehicle-mounted electronics (e.g., telematics, ADAS ECUs) exposed to jump-start transients. IC Role / Device Role / Timing Role: Low-VF series-blocking rectifier placed between battery and load to prevent reverse-current damage. Use Value: 0.32 V VF(TO) threshold and 0.81 mΩ rt minimize voltage drop and self-heating during normal 100 A operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKT200/035 | Same 35 V VRRM and TO-244AB package, but higher VF (0.58 V @ 100 A/125°C) and lower IRM (300 mA @ 125°C). | Better suited for low-leakage-sensitive applications; less optimal where conduction loss dominates thermal budget. | Select VSKT200/035 when reverse leakage must be minimized below 300 mA at 125°C, accepting higher forward loss. |
| IXYS DSSK100-03A | 30 V VRRM, TO-247AC package, 100 A per leg, VF = 0.52 V @ 100 A/125°C, no center-tap configuration. | Requires external center-tap wiring; lacks integrated dual-anode/common-cathode mechanical layout. | Choose DSSK100-03A only if board layout allows discrete dual-diode placement and 30 V rating suffices. |
Compared with VSKT200/035 and DSSK100-03A, the 200CNQ035 delivers the lowest VF at high temperature among center-tap modules in its voltage class, enabling higher efficiency in thermally constrained industrial converters without sacrificing surge robustness or mechanical integration.
Availability
200CNQ035 is available at Aetrix Electronics and suitable for industrial UPS systems, electroplating power supplies, and welding equipment requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 200CNQ035 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
Infineon Technologies is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy applications.
The 200CNQ... series was developed specifically for high-current, high-temperature rectification in industrial power conversion-emphasizing low VF, ruggedness, and reliability over 150°C junction operation.
FAQ
What is the maximum junction temperature rating for the 200CNQ035?
The 200CNQ035 is rated for continuous operation from −55°C to +150°C junction temperature. This 150°C maximum is validated across all electrical parameters including VF, IRM, and dv/dt capability, and is enabled by high-purity epoxy encapsulation and proprietary Schottky barrier design. The 200CNQ035 maintains specified performance up to this limit without derating.
Does the 200CNQ035 have a center-tap configuration, and how is it implemented?
Yes, the 200CNQ035 features a true center-tap configuration with two independent anode terminals (Anode 1 and Anode 2) and one shared common cathode terminal. This mechanical layout enables full-wave rectification using a single transformer secondary winding with no internal connection between anodes-confirmed by the TO-244AB outline and terminal labeling in the official datasheet.
What is the thermal resistance from junction to case for the 200CNQ035, and is it per leg or per package?
The 200CNQ035 has RthJC = 0.20°C/W per package (not per leg), meaning this value applies to the entire module's thermal path from either diode junction to the metal baseplate. A separate RthJC = 0.40°C/W is specified per leg, confirming the 0.20°C/W reflects parallel thermal conduction through the shared case-critical for accurate system-level thermal modeling.
How does the 200CNQ035 handle reverse leakage at elevated temperature?
At 125°C junction temperature, the 200CNQ035 exhibits a maximum reverse leakage current (IRM) of 500 mA per leg at rated VRRM. This value is measured and guaranteed-not typical-and reflects optimization for high-temperature stability via proprietary barrier technology. Leakage remains within specification up to 150°C, supporting reliable operation in sealed or high-ambient enclosures.
Is the 200CNQ035 suitable for reverse battery protection in 24 V automotive systems?
Yes, the 200CNQ035 is used for reverse battery protection in 24 V industrial vehicles due to its low 0.32 V VF(TO) threshold, 0.81 mΩ dynamic resistance, and ability to sustain 100 A continuous forward current. Its 35 V VRRM provides 11 V margin above 24 V nominal, and its 10,000 V/µs dv/dt rating withstands jump-start transients without failure.
200CNQ035 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-244AB
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 35 V
- Current - Average Rectified (Io) (per Diode):
- 100A
- Voltage - Forward (Vf) (Max) @ If:
- 540 mV @ 100 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 mA @ 35 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- TO-244AB
200CNQ035 FAQ
1.How can I place an order for 200CNQ035 through Aetrix?
Please submit a Request for Quotation (RFQ) for 200CNQ035 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 200CNQ035 reliable?
The price and inventory of 200CNQ035 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 200CNQ035 is usually 5 days.
3.What payment methods are accepted for 200CNQ035?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 200CNQ035 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 200CNQ035?
200CNQ035 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 200CNQ035 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 200CNQ035?
For technical support, including 200CNQ035 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 200CNQ035 requirements.
6.How does Aetrix verify that 200CNQ035 is sourced from the original manufacturer or authorized distributors?
All 200CNQ035 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 200CNQ035 meets industry standards.
7.What is the process for return or replacement of 200CNQ035?
All 200CNQ035 units undergo pre-shipment inspection (PSI). If there is an issue with 200CNQ035, 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 200CNQ035 part is unused and in its original packaging.
Return procedure for 200CNQ035:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
200CNQ035 Tags

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