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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Vishay General Semiconductor - Diodes Division 201CNQ035

Name: 201CNQ035
Brand: Vishay General Semiconductor - Diodes Division
SKU: 201CNQ035
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 201CNQ035

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Diode Arrays

Package:: TO-244AB

Datasheet:: 201CNQ035.pdf

Description:: DIODE MOD SCHOT 35V 200A TO244AB

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Product details

Overview

201CNQ035 from Infineon Technologies is a center-tap Schottky rectifier module rated for 200 A average forward current, 35 V maximum DC reverse voltage, and 175 °C junction temperature operation; it features 0.58 V forward voltage at 100 A (per leg), 16,000 A non-repetitive surge current (5 µs sine), and TO-244AB package for high-current switching power supplies and welding equipment.

For engineers reviewing the 201CNQ035 datasheet, 201CNQ035 pinout, 201CNQ035 application, or 201CNQ035 equivalent, key selection criteria include thermal resistance (0.40 °C/W per leg), low reverse leakage (90 mA at 125 °C), rugged guard-ring construction, and high-frequency capability enabled by low series inductance (7.0 nH per leg) and junction capacitance (5200 pF at 5 V).

Technical Context

This device implements a dual-anode, common-cathode Schottky architecture with center-tap configuration, enabling full-wave rectification without external diode pairing. Its proprietary barrier technology suppresses reverse leakage up to 175 °C, supporting continuous operation in high-temperature industrial environments.

Thermal design is enabled by low R_thJC (0.40 °C/W per leg, 0.20 °C/W per package) and R_thCS (0.10 °C/W to greased heatsink), while dv/dt rating of 10,000 V/µs ensures robustness against fast transients in inductive switching circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
IF(AV)	200 A at 138 °C case temp, 50% duty cycle rectangular waveform - supports high-duty-cycle industrial power conversion
VRRM	35 V - defines maximum blocking voltage in reverse bias, suitable for low-voltage, high-current DC bus applications
VF @ 100A	0.58 V at TJ = 125 °C - enables low conduction loss and reduced thermal stress in high-current paths
IFSM	16,000 A peak (5 µs sine) - withstands severe inrush and short-circuit surges in welders and UPS systems
TJ Range	–55 to +175 °C - allows deployment in under-hood, welding, or enclosed industrial enclosures without derating
RthJC (per leg)	0.40 °C/W - dictates minimum heatsink requirement for 200 A DC operation at safe junction temperature
IRM @ 125°C	90 mA per leg - quantifies thermally accelerated leakage critical for reliability in high-temp free-wheeling roles

Pinout & Package

Package: TO-244AB (Modified JEDEC), metal-base insulated module with center-tap configuration. Dimensions: 92.71 × 40.26 × 23.55 mm (3.650 × 1.585 × 0.927 in), weight 79 g. Mounting via 1/4-20 slotted hex base and terminal lugs.

Pin/Terminal	Circuit Role	Design Meaning
ANODE 1	First anode of dual-Schottky die	Connects to AC input phase 1; forms one half of center-tapped full-wave rectifier path
ANODE 2	Second anode of dual-Schottky die	Connects to AC input phase 2; completes full-wave rectification with ANODE 1 and COMMON CATHODE
COMMON CATHODE	Shared cathode node	Output DC+ terminal; carries full 200 A average load current; requires low-inductance, high-current PCB trace or busbar
BASE	Electrically isolated mounting base	Thermally conductive but electrically insulated interface to heatsink; rated for 24–35 kg-cm torque

Key Features

Feature	Design Value
175 °C TJ operation	Enables uninterrupted operation in ambient >100 °C environments (e.g., welding inverters, motor drives) without thermal shutdown
Guard ring structure	Improves edge termination ruggedness, raising avalanche energy rating to 135 mJ and supporting unclamped inductive switching
High-purity epoxy encapsulation	Provides IP67-level moisture resistance and mechanical stability during thermal cycling and vibration
Low series inductance (7.0 nH)	Minimizes voltage overshoot during fast turn-off, critical for EMI control in >100 kHz SMPS designs
Center-tap module topology	Eliminates need for external diode pairing and matching, reducing layout complexity and parasitic imbalance in dual-phase inputs

Applications

Welding Inverter Power Stage	Industrial UPS Rectifier Bank
Use Scenario: High-current DC bus generation in IGBT-based welding inverters with 50–100 kHz switching and repetitive 10–20 ms arc pulses. IC Role / Device Role / Timing Role: Center-tap Schottky rectifier delivering 200 A DC output; replaces discrete diode pairs with matched VF and thermal coupling. Use Value: 0.58 V VF at 100 A reduces conduction loss by ~15% vs. comparable 45 V parts, lowering heatsink mass by 22% in space-constrained cabinets.	Use Scenario: Bi-directional AC/DC conversion in modular 3-phase UPS systems requiring parallelable, field-replaceable rectifier modules. IC Role / Device Role / Timing Role: Primary rectification element in each 3-phase leg; leverages 175 °C rating to sustain 100% load during extended battery backup with elevated ambient. Use Value: 16,000 A IFSM handles generator sync transients without fusing; TO-244AB mechanical footprint enables standardized heatsink mounting across voltage variants.
Solar Array Combiner Box Protection	EV Onboard Charger Input Stage
Use Scenario: Reverse polarity and overvoltage protection in multi-string PV combiner boxes exposed to desert ambient (>70 °C) and lightning-induced surges. IC Role / Device Role / Timing Role: Reverse-battery protection diode with clamping function; operates continuously at 85 °C ambient with 150 A sustained current. Use Value: 90 mA IRM at 125 °C ensures <1 W leakage dissipation even at max TJ, avoiding thermal runaway in sealed enclosures.	Use Scenario: AC-DC front-end rectification in 11 kW OBCs using interleaved PFC with 65–100 kHz carrier frequency. IC Role / Device Role / Timing Role: High-frequency, low-loss rectifier in Vienna or boost PFC stage; benefits from 5200 pF CT and 7.0 nH LS for stable snubberless operation. Use Value: Low CT minimizes displacement current into gate drivers; combined with 10,000 V/µs dv/dt rating, eliminates need for RC snubbers in 650 V-class designs.

Welding Inverter Power Stage

Industrial UPS Rectifier Bank

Use Scenario: High-current DC bus generation in IGBT-based welding inverters with 50–100 kHz switching and repetitive 10–20 ms arc pulses.

IC Role / Device Role / Timing Role: Center-tap Schottky rectifier delivering 200 A DC output; replaces discrete diode pairs with matched VF and thermal coupling.

Use Value: 0.58 V VF at 100 A reduces conduction loss by ~15% vs. comparable 45 V parts, lowering heatsink mass by 22% in space-constrained cabinets.

Use Scenario: Bi-directional AC/DC conversion in modular 3-phase UPS systems requiring parallelable, field-replaceable rectifier modules.

IC Role / Device Role / Timing Role: Primary rectification element in each 3-phase leg; leverages 175 °C rating to sustain 100% load during extended battery backup with elevated ambient.

Use Value: 16,000 A IFSM handles generator sync transients without fusing; TO-244AB mechanical footprint enables standardized heatsink mounting across voltage variants.

Solar Array Combiner Box Protection

EV Onboard Charger Input Stage

Use Scenario: Reverse polarity and overvoltage protection in multi-string PV combiner boxes exposed to desert ambient (>70 °C) and lightning-induced surges.

IC Role / Device Role / Timing Role: Reverse-battery protection diode with clamping function; operates continuously at 85 °C ambient with 150 A sustained current.

Use Value: 90 mA IRM at 125 °C ensures <1 W leakage dissipation even at max TJ, avoiding thermal runaway in sealed enclosures.

Use Scenario: AC-DC front-end rectification in 11 kW OBCs using interleaved PFC with 65–100 kHz carrier frequency.

IC Role / Device Role / Timing Role: High-frequency, low-loss rectifier in Vienna or boost PFC stage; benefits from 5200 pF CT and 7.0 nH LS for stable snubberless operation.

Use Value: Low CT minimizes displacement current into gate drivers; combined with 10,000 V/µs dv/dt rating, eliminates need for RC snubbers in 650 V-class designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier module applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
VSKT200-04	40 V VRRM, 0.62 V VF @ 100 A, RthJC = 0.35 °C/W per leg, same TO-244AB package	Better suited for 48 V DC bus systems where higher VR margin is required; slightly higher VF increases conduction loss	Select when system VR exceeds 35 V or when tighter thermal budget demands lower RthJC
IXYS DSEC2x101-04A	400 A total (2×100 A legs), 40 V VRRM, 0.72 V VF @ 100 A, TO-247-3L dual-diode package	Higher current capacity but discrete dual-die layout; lacks integrated center tap and common cathode terminal	Choose for scalable parallel designs or when board-level flexibility outweighs module integration benefits

Compared with VSKT200-04 and DSEC2x101-04A, the 201CNQ035 offers optimal balance of low VF (0.58 V), 35 V VR headroom for 24–36 V systems, and true center-tap integration-reducing component count and improving thermal symmetry in compact, high-reliability rectifier banks.

Availability

201CNQ035 is available at Aetrix Electronics and suitable for welding inverters, industrial UPS systems, solar combiner protection, and EV onboard charger designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 201CNQ035 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 renewable energy markets.

The 201CNQ... series was developed for high-current, high-temperature rectification in industrial power conversion-emphasizing ruggedness, low VF, and reliable 175 °C operation in harsh environments.

FAQ

What is the maximum allowable case temperature for continuous 200 A operation of the 201CNQ035?

The 201CNQ035 supports 200 A average forward current at a case temperature (T_C) of 138 °C under 50% duty cycle rectangular waveform conditions, as specified in Fig. 5 of the datasheet. Exceeding this temperature requires derating per the thermal impedance curve (Z_thJC) to maintain junction temperature ≤175 °C. The 201CNQ035's 0.40 °C/W R_thJC per leg defines the thermal path limit for heatsink design.

Does the 201CNQ035 have a center-tap configuration, and how is it implemented physically?

Yes, the 201CNQ035 is a center-tap Schottky rectifier module with two anodes (ANODE 1 and ANODE 2) and one shared COMMON CATHODE terminal. This configuration is built into the TO-244AB package as a monolithic dual-die structure on a common base, eliminating external wiring between anodes and enabling true full-wave rectification. The 201CNQ035's pinout reflects this internal topology directly.

What is the reverse leakage current specification for the 201CNQ035 at elevated temperatures?

The 201CNQ035 specifies 90 mA maximum reverse leakage current (I_RM) per leg at T_J = 125 °C and rated V_RRM, per the Electrical Specifications table. At 25 °C, leakage is limited to 10 mA per leg. This controlled leakage-enabled by proprietary barrier technology-is critical for maintaining efficiency and reliability in high-temperature free-wheeling and reverse-battery protection applications using the 201CNQ035.

Can the 201CNQ035 be used in parallel with other units for higher current handling?

Yes, the 201CNQ035 supports parallel operation due to its positive temperature coefficient of forward voltage, which promotes current sharing. However, layout symmetry (matched trace inductance/resistance), individual thermal management, and external balancing resistors (if required by design margin) must be implemented. The 201CNQ035's low R_thJC (0.40 °C/W per leg) and uniform die construction aid stable parallel operation in high-current rectifier banks.

What is the significance of the guard ring feature in the 201CNQ035?

The guard ring in the 201CNQ035 enhances edge termination ruggedness, increasing avalanche energy rating to 135 mJ per leg and enabling reliable unclamped inductive switching-critical in freewheeling and welding applications. It also improves long-term reliability under repetitive surge stress (e.g., 16,000 A IFSM) and prevents premature edge breakdown during high dv/dt events. This structural feature is integral to the 201CNQ035's qualification for industrial-level use.

201CNQ035 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):: 200A

Voltage - Forward (Vf) (Max) @ If:: 810 mV @ 200 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

201CNQ035 FAQ

1.How can I place an order for 201CNQ035 through Aetrix?

Please submit a Request for Quotation (RFQ) for 201CNQ035 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 201CNQ035 reliable?

The price and inventory of 201CNQ035 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 201CNQ035 is usually 5 days.

3.What payment methods are accepted for 201CNQ035?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 201CNQ035 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 201CNQ035?

201CNQ035 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 201CNQ035 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 201CNQ035?

For technical support, including 201CNQ035 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 201CNQ035 requirements.

6.How does Aetrix verify that 201CNQ035 is sourced from the original manufacturer or authorized distributors?

All 201CNQ035 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 201CNQ035 meets industry standards.

7.What is the process for return or replacement of 201CNQ035?

All 201CNQ035 units undergo pre-shipment inspection (PSI). If there is an issue with 201CNQ035, 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 201CNQ035 part is unused and in its original packaging.

Return procedure for 201CNQ035:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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