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Vishay General Semiconductor - Diodes Division 201CNQ050
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- Part No.:
- 201CNQ050
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-244AB
- Datasheet:
-
201CNQ050.pdf
- Description:
- DIODE MOD SCHOT 50V 200A TO244AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
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Product details
Overview
201CNQ050 from Infineon Technologies is a center-tap Schottky rectifier module optimized for high-current, high-temperature operation in power conversion systems. It delivers 200 A average forward current (rectangular waveform, 50% duty cycle at TC = 138 °C), 16,000 A non-repetitive surge current (5 µs sine), and 0.58 V forward voltage drop per leg at 100 A and TJ = 125 °C - enabling efficient freewheeling and reverse battery protection in industrial welders and DC-DC converters.
For engineers reviewing the 201CNQ050 datasheet, 201CNQ050 pinout, 201CNQ050 application, or 201CNQ050 equivalent, key selection criteria include its TO-244AB package thermal resistance (0.20 °C/W junction-to-case per package), 175 °C maximum junction temperature, and low reverse leakage (90 mA per leg at TJ = 125 °C) under sustained high-temperature bias.
Technical Context
This device is a dual-anode, common-cathode Schottky rectifier configured as a center-tap module - not a discrete diode pair. Its proprietary barrier technology enables stable operation up to 175 °C junction temperature while maintaining low VF and controlled IRM across temperature extremes.
The TO-244AB package integrates two symmetrical Schottky legs sharing a single cathode terminal, with thermal performance defined by both per-leg (RthJC = 0.40 °C/W) and per-package (RthJC = 0.20 °C/W) metrics. dv/dt rating of 10,000 V/µs supports fast-switching topologies without parasitic turn-on.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 200 A rectangular waveform, 50% duty cycle at TC = 138 °C - defines continuous conduction capability in high-duty-cycle SMPS outputs |
| IFSM (5 µs) | 16,000 A per leg - supports short-circuit robustness in welding inverters and motor drives |
| VF @ 100 A, TJ = 125 °C | 0.58 V per leg - reduces conduction loss and thermal stress in high-current freewheeling paths |
| VRRM | 45 V - sets maximum blocking voltage for 36 V nominal battery and 48 V bus applications |
| TJ Range | −55 to +175 °C - enables deployment in under-hood automotive, industrial welding, and enclosed power supplies |
| RthJC (per package) | 0.20 °C/W - allows higher total power dissipation than per-leg rating, critical for shared heatsink designs |
| IRM @ TJ = 125 °C | 90 mA per leg - low leakage preserves efficiency and stability in high-temperature reverse-bias conditions |
Pinout & Package
Package: TO-244AB (Modified JEDEC), metal baseplate with isolated anode terminals and common cathode lug. Mounting via 1/4-20 slotted hex screw; thermal interface requires smooth, greased surface (RthCS = 0.10 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ANODE 1 | First Schottky anode | Connects to positive side of first half-bridge leg or input winding segment |
| ANODE 2 | Second Schottky anode | Connects to positive side of second half-bridge leg or complementary winding segment |
| COMMON CATHODE | Shared cathode node | Serves as output/common return path - electrically and thermally central point for both legs |
| BASE | Electrically isolated metal baseplate | Primary thermal path to heatsink; electrically floating unless externally bonded |
Key Features
| Feature | Design Value |
|---|---|
| 175 °C TJ operation | Enables reliable use in sealed enclosures and high-ambient industrial environments without derating |
| Center-tap module architecture | Reduces component count vs. discrete dual-diode solutions and improves thermal coupling between legs |
| High-purity, high-temp epoxy encapsulation | Prevents moisture ingress and mechanical degradation during thermal cycling in welding equipment |
| Guard ring structure | Increases ruggedness against voltage transients and improves long-term reliability in inductive load switching |
| Low VF with controlled IRM trade-off | Optimized barrier design balances conduction loss and high-temperature leakage for 48 V system efficiency |
Applications
| Welding Inverter Output Stage | 48 V DC-DC Converter Freewheeling |
|---|---|
Use Scenario: High-current, high-frequency rectification in IGBT-based welding inverters operating at 20–50 kHz with peak currents >10 kA. IC Role / Device Role / Timing Role: Center-tap Schottky rectifier providing low-loss, fast-recovery output stage with shared cathode return. Use Value: 0.58 V VF at 100 A and 175 °C TJ minimizes conduction loss and thermal runaway risk during sustained arc time. | Use Scenario: Freewheeling path in synchronous buck converters for telecom and server PSUs delivering 200+ A at 48 V input. IC Role / Device Role / Timing Role: Dual-leg Schottky module handling bidirectional current flow during low-side switch dead time. Use Value: 16,000 A IFSM withstands transient overloads during output short-circuit events without bond-wire failure. |
| Reverse Battery Protection Circuit | Industrial Motor Drive Snubber Network |
Use Scenario: Polarity protection in 24–48 V vehicle-mounted electronics exposed to −30 to +85 °C ambient and load dump transients. IC Role / Device Role / Timing Role: Common-cathode Schottky clamp preventing reverse current flow during battery reversal or jump-start conditions. Use Value: 90 mA IRM at 125 °C ensures minimal standby power loss and thermal drift in sealed control modules. | Use Scenario: Snubber diode network in 3-phase VFDs driving induction motors in factory automation systems. IC Role / Device Role / Timing Role: Fast-recovery, low-inductance rectifier absorbing inductive kickback from IGBT gate drivers and motor windings. Use Value: 7.0 nH series inductance and 10,000 V/µs dv/dt rating suppress false triggering and oscillation in high-dI/dt switching nodes. |
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, 0.55 V VF @ 100 A, TO-247-3L package with separate cathodes | Lacks center-tap configuration; requires external interconnect for common-cathode topology | Preferred when discrete layout control or lower VF at 25 °C is prioritized over thermal coupling |
| IXYS DSSK100-04A | 40 V VRRM, 0.57 V VF @ 100 A, dual common-cathode TO-247 package with 0.25 °C/W RthJC | Higher RthJC (0.25 vs. 0.20 °C/W) and no guard ring; rated only to 150 °C TJ | Acceptable for lower-temperature 48 V systems where 175 °C margin is not required |
Compared with VSKT200-04 and DSSK100-04A, the 201CNQ050 provides superior thermal integration (0.20 °C/W per package), guaranteed 175 °C operation, and built-in guard ring - making it uniquely suited for high-reliability, high-temperature welding and industrial motor drive applications where thermal coupling and ruggedness are critical.
Availability
201CNQ050 is available at Aetrix Electronics and suitable for high-current power supplies, welding inverters, and reverse battery protection circuits requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 201CNQ050 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 specializing in power management, sensor, and automotive ICs, with core expertise in high-efficiency power devices and rugged industrial components.
The 201CNQ... series was developed specifically for high-current, high-temperature rectification in industrial welding, heavy-duty power supplies, and battery-protection systems - emphasizing thermal robustness, low VF consistency, and mechanical reliability under vibration and thermal cycling.
FAQ
What is the maximum junction temperature rating for the 201CNQ050?
The 201CNQ050 is rated for a maximum junction temperature of 175 °C, validated across its full VRRM range and supported by its high-purity epoxy encapsulation and thermal design. This rating enables operation in sealed enclosures and high-ambient environments where conventional Schottky rectifiers would require significant derating. The 201CNQ050 maintains specified VF and IRM performance up to this limit.
Does the 201CNQ050 have a center-tap configuration, and how is it implemented?
Yes, the 201CNQ050 implements a true center-tap configuration via two independent anode terminals (ANODE 1 and ANODE 2) sharing a single COMMON CATHODE terminal. This architecture eliminates the need for external parallel wiring and ensures matched thermal and electrical characteristics between legs. The 201CNQ050's TO-244AB package physically isolates the anodes while thermally coupling them to the common baseplate.
What is the forward voltage drop of the 201CNQ050 at full rated current?
At 200 A DC and TJ = 25 °C, the 201CNQ050 exhibits a typical forward voltage drop of 0.71 V per leg. At elevated temperature (TJ = 125 °C), VF rises to 0.81 V per leg at 200 A. These values are measured under DC conditions and reflect the device's optimized barrier for high-temperature stability - the 201CNQ050's 0.58 V rating applies at 100 A and TJ = 125 °C.
How does the thermal resistance of the 201CNQ050 compare between per-leg and per-package measurements?
The 201CNQ050 specifies RthJC = 0.40 °C/W per leg and 0.20 °C/W per package. The per-package value reflects the combined thermal path when both legs conduct simultaneously - effectively halving the thermal resistance compared to using one leg alone. This makes the 201CNQ050 especially effective in balanced, high-power applications where both anodes share load, such as center-tapped transformer rectification.
Is the 201CNQ050 suitable for reverse battery protection in automotive applications?
Yes, the 201CNQ050 is well-suited for reverse battery protection in 24–48 V automotive and off-highway vehicle systems. Its 45 V VRRM rating accommodates load dump transients, its 90 mA IRM at 125 °C ensures low standby loss in hot engine compartments, and its TO-244AB package provides mechanical robustness under vibration. The 201CNQ050's 175 °C TJ rating exceeds typical AEC-Q101 requirements for under-hood placement.
201CNQ050 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):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 200A
- Voltage - Forward (Vf) (Max) @ If:
- 670 mV @ 100 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 mA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- TO-244AB
201CNQ050 FAQ
1.How can I place an order for 201CNQ050 through Aetrix?
Please submit a Request for Quotation (RFQ) for 201CNQ050 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 201CNQ050 reliable?
The price and inventory of 201CNQ050 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 201CNQ050 is usually 5 days.
3.What payment methods are accepted for 201CNQ050?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 201CNQ050 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 201CNQ050?
201CNQ050 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 201CNQ050 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 201CNQ050?
For technical support, including 201CNQ050 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 201CNQ050 requirements.
6.How does Aetrix verify that 201CNQ050 is sourced from the original manufacturer or authorized distributors?
All 201CNQ050 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 201CNQ050 meets industry standards.
7.What is the process for return or replacement of 201CNQ050?
All 201CNQ050 units undergo pre-shipment inspection (PSI). If there is an issue with 201CNQ050, 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 201CNQ050 part is unused and in its original packaging.
Return procedure for 201CNQ050:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
201CNQ050 Tags
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BAV99-7-F
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BAV99,215
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BAT54SLT1G
onsemi
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BAV70LT1G
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BAT54CLT1G
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BAT54S-7-F
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BAV99LT1G
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BAT54S,215
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BAS40-04LT1G
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MMBD1503-TP
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