Vishay General Semiconductor - Diodes Division 200CNQ045
- Part No.:
- 200CNQ045
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-244AB
- Datasheet:
-
200CNQ045.pdf
- Description:
- DIODE MOD SCHOT 45V 100A TO244AB
- Quantity:
- Payment:

- Shipping:

Inventory:9,272
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Product details
Overview
200CNQ045 from Infineon Technologies is a center-tap Schottky rectifier module optimized for high-current DC power conversion, featuring 45 V maximum DC reverse voltage, 200 A total device 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 or output rectifier in industrial UPS systems and plating power supplies.
For engineers reviewing the 200CNQ045 datasheet, 200CNQ045 pinout, 200CNQ045 application, or 200CNQ045 equivalent, key selection considerations include thermal resistance (0.20°C/W junction-to-case per package), reverse leakage (500 mA per leg at 125°C), ruggedness features like guard ring protection, and TO-244AB mechanical compatibility with high-torque mounting requirements.
Technical Context
This device integrates two anti-parallel Schottky diodes sharing a common cathode terminal in a single TO-244AB metal-package module. Its proprietary barrier technology enables stable operation at 150°C while maintaining low VF and controlled IR across temperature.
The center-tap configuration supports full-wave rectification without external wiring; thermal design leverages dual thermal paths-0.40°C/W per leg and 0.20°C/W per package-to manage 200 A total conduction losses. Guard ring structure enhances surge survivability under repetitive avalanche conditions (20 A IAR, 135 mJ EAS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum DC reverse blocking voltage per leg; defines safe operating limit in high-voltage DC bus applications. |
| IF(AV) per leg | 100 A - Average forward current rating per diode leg under 50% duty cycle rectangular waveform at TC = 114°C. |
| VF @ 100A, 125°C | 0.49 V - Confirmed forward drop per leg at rated current and elevated temperature; directly impacts conduction loss and thermal design. |
| RthJC (per package) | 0.20 °C/W - Junction-to-case thermal resistance for the entire module; enables accurate total power dissipation modeling. |
| IRM @ 125°C | 500 mA - Maximum reverse leakage per leg at 125°C; critical for high-temperature reliability in sealed or unventilated enclosures. |
| dv/dt rating | 10,000 V/µs - Voltage rate-of-change immunity; ensures robustness against fast transients in switching converter outputs. |
| Case style | TO-244AB - Modified JEDEC outline with dual lug terminals and center-hole mounting; requires 24–35 kg-cm base torque. |
Pinout & Package
Package: TO-244AB metal-can center-tap module with isolated anode lugs (Anode 1, Anode 2), common cathode terminal, and mechanical mounting features including 1/4-20 slotted hex base and center hole.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first Schottky diode leg | Connects to AC input phase 1 or transformer secondary winding end; carries up to 100 A average current. |
| Anode 2 | Input terminal for second Schottky diode leg | Connects to AC input phase 2 or opposite transformer winding end; enables full-wave center-tap rectification. |
| Common Cathode | Shared output node for both diode legs | Delivers rectified DC output; must be mounted to heatsink via thermally conductive interface for 0.20°C/W RthJC. |
Key Features
| Feature | Design Value |
|---|---|
| Center-tap Schottky architecture | Enables full-wave rectification with single-module integration-eliminates need for discrete dual-diode layout and interconnect inductance. |
| 150°C maximum junction temperature | Supports operation in high-ambient environments (e.g., enclosed UPS cabinets) without derating below 100 A/leg. |
| Guard ring protection | Improves ruggedness against voltage transients and localized avalanche, extending lifetime in welding and inductive load switching. |
| High-purity epoxy encapsulation | Provides enhanced moisture resistance and mechanical integrity during thermal cycling in industrial plating equipment. |
| Low VF slope resistance | rt = 0.81 mΩ per leg-ensures predictable conduction loss rise with current, simplifying thermal margin analysis. |
Applications
| Industrial UPS Systems | Electroplating Power Supplies |
|---|---|
Use Scenario: High-current DC output stage of three-phase online UPS delivering uninterrupted 400 V DC bus to inverter stage. IC Role / Device Role / Timing Role: Center-tap Schottky rectifier providing low-loss, high-efficiency AC-to-DC conversion with minimal reverse recovery loss. Use Value: 0.49 V VF at 100 A/125°C reduces conduction loss by ~15% versus comparable 120°C-rated modules, lowering heatsink size and fan requirements. |
Use Scenario: Constant-current DC source for metal finishing tanks requiring ripple-free 12–24 V, 10,000+ A output. IC Role / Device Role / Timing Role: Output rectifier in multi-module parallel SCR-controlled transformer-rectifier banks. Use Value: 500 mA IR at 125°C ensures stable regulation under sustained high-temperature operation inside water-cooled rectifier cabinets. |
| Welding Equipment | Reverse Battery Protection |
Use Scenario: Secondary-side rectification in inverter-based arc welders handling 200 A DC output with rapid load transients. IC Role / Device Role / Timing Role: Freewheeling diode absorbing inductive kickback from primary-side IGBTs and smoothing output ripple. Use Value: 10,000 V/µs dv/dt rating prevents false turn-on during fast-switching events, improving arc stability and electrode life. |
Use Scenario: Polarity protection in 24 V vehicle-mounted battery chargers and auxiliary power units. IC Role / Device Role / Timing Role: Low-VF series-blocking rectifier preventing reverse-current flow during accidental battery reversal. Use Value: 0.54 V VFM @ 100 A minimizes voltage drop in forward path, preserving >98% of input voltage for downstream converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKT200/45 | Same 45 V VRRM and TO-244AB package, but higher VF (0.57 V @ 100 A/125°C) and lower IR (300 mA @ 125°C). | Better suited for lower-temperature environments where leakage sensitivity outweighs conduction loss. | Select VSKT200/45 when ambient temperature remains below 85°C and long-term leakage drift is a priority over efficiency. |
| IXYS DSEE2X101-45A | 45 V VRRM, 100 A/leg, but uses press-fit terminations instead of threaded lugs and has higher RthJC (0.25°C/W per package). | Designed for automated assembly on PCB-mount heatsinks rather than bolted chassis mounting. | Choose DSEE2X101-45A only if production uses press-fit tooling and board-level thermal management replaces mechanical mounting. |
Compared with 200CNQ045, VSKT200/45 trades higher conduction loss for tighter leakage control, while DSEE2X101-45A shifts from field-serviceable lug mounting to SMT-compatible press-fit integration-neither offers pin-to-pin or thermal drop-in replacement without mechanical redesign.
Availability
200CNQ045 is available at Aetrix Electronics and suitable for industrial UPS systems, electroplating power supplies, welding equipment, and reverse battery protection circuits requiring stable component supply across extended production lifecycles.
Supply support for 200CNQ045 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 global semiconductor leader headquartered in Munich, Germany, specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and energy markets.
The 200CNQ... series was developed specifically for high-current, high-temperature rectification in industrial power conversion-emphasizing ruggedness, thermal stability, and low VF in center-tap configurations.
FAQ
What is the maximum junction temperature rating for the 200CNQ045?
The 200CNQ045 is rated for a maximum junction temperature of 150°C, validated across its full electrical specification range. This allows continuous operation in demanding thermal environments such as enclosed UPS cabinets or water-cooled plating rectifiers without derating, provided case temperature remains within limits defined by thermal resistance and power dissipation.
Does the 200CNQ045 support full-wave rectification without external components?
Yes-the 200CNQ045 integrates two Schottky diodes with a shared cathode terminal in a center-tap configuration, enabling full-wave rectification using only the module and a center-tapped transformer or AC source. No external diodes or balancing resistors are required, reducing bill-of-materials count and PCB footprint.
What mounting torque specifications apply to the 200CNQ045's base and center hole?
The 200CNQ045 requires a base mounting torque of 24–35 kg-cm (20–30 lbf-in) on its 1/4-20 slotted hex base, and a center hole torque of 13.5 kg-cm (12 lbf-in) typical. These values ensure optimal thermal contact between the TO-244AB case and heatsink while avoiding mechanical deformation of the metal package.
How does the 200CNQ045's reverse leakage compare at 25°C versus 125°C?
At 25°C, the 200CNQ045 exhibits ≤10 mA reverse leakage per leg; at 125°C, it rises to ≤500 mA per leg under rated VR. This temperature-dependent behavior is inherent to Schottky physics and is fully characterized in the datasheet-designers must verify system-level thermal management to avoid runaway in high-ambient applications.
Is the 200CNQ045 qualified for industrial-level reliability standards?
Yes-the 200CNQ045 is explicitly designed and qualified to Industrial Level standards per Infineon's qualification program, including extended temperature cycling, humidity testing, and long-term high-temperature bias stress. Documentation of test conditions and pass criteria is available in Infineon's qualification reports accessible via www.infineon.com.
200CNQ045 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):
- 45 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 @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- TO-244AB
200CNQ045 FAQ
1.How can I place an order for 200CNQ045 through Aetrix?
Please submit a Request for Quotation (RFQ) for 200CNQ045 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 200CNQ045 reliable?
The price and inventory of 200CNQ045 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 200CNQ045 is usually 5 days.
3.What payment methods are accepted for 200CNQ045?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 200CNQ045 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 200CNQ045?
200CNQ045 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 200CNQ045 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 200CNQ045?
For technical support, including 200CNQ045 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 200CNQ045 requirements.
6.How does Aetrix verify that 200CNQ045 is sourced from the original manufacturer or authorized distributors?
All 200CNQ045 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 200CNQ045 meets industry standards.
7.What is the process for return or replacement of 200CNQ045?
All 200CNQ045 units undergo pre-shipment inspection (PSI). If there is an issue with 200CNQ045, 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 200CNQ045 part is unused and in its original packaging.
Return procedure for 200CNQ045:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
200CNQ045 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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onsemi

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onsemi

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BAT54S-7-F
Diodes Incorporated

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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
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