Vishay General Semiconductor - Diodes Division 220CNQ030
- Part No.:
- 220CNQ030
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-244AB
- Datasheet:
-
220CNQ030.pdf
- Description:
- DIODE MOD SCHOT 30V 220A TO244AB
- Quantity:
- Payment:

- Shipping:

Inventory:2,768
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Product details
Overview
220CNQ030 from Infineon Technologies is a center-tap Schottky rectifier module optimized for high-current, high-temperature operation in DC-DC converters and UPS systems. It delivers 220 A average forward current per leg at 114 °C case temperature, 30 V maximum reverse voltage, and 0.40 V forward voltage drop at 110 A and 125 °C junction temperature.
For engineers reviewing the 220CNQ030 datasheet, 220CNQ030 pinout, 220CNQ030 application, or 220CNQ030 equivalent, key selection criteria include thermal resistance (0.20 °C/W junction-to-case per package), surge capability (22,500 A peak non-repetitive), ruggedness features (guard ring, high-purity epoxy), and 150 °C continuous junction rating.
Technical Context
This device is a dual-anode, common-cathode Schottky rectifier in a TO-244AB package with center-tap configuration. Its proprietary barrier technology enables stable low-leakage performance up to 150 °C TJ, while the guard ring structure enhances avalanche ruggedness and long-term reliability under repetitive stress.
Designed for high-frequency switching applications, it exhibits 7.0 nH typical series inductance per leg and supports dv/dt rates up to 10,000 V/µs at rated VR. The 7400 pF junction capacitance at 5 V reverse bias reflects its suitability for fast-switching topologies where capacitive losses must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 220 A @ TC = 114 °C, 50% duty cycle rectangular waveform - supports high-current power stages without forced air cooling |
| VRRM | 30 V - defines maximum blocking voltage in reverse-biased operation for low-voltage bus protection |
| VF @ 110A, 125°C | 0.40 V per leg - reduces conduction loss and thermal load in high-efficiency SMPS designs |
| IFSM (5 µs sine) | 22,500 A per leg - withstands extreme short-circuit or startup surges in welding and plating supplies |
| RthJC (per package) | 0.20 °C/W - enables efficient heat transfer to heatsink, critical for sustained 220 A operation |
| TJ Range | –55 to +150 °C - certified for industrial environments with wide ambient and self-heating margins |
| IRM @ 125°C | 560 mA per leg - low leakage preserves efficiency and stability at elevated temperatures |
Pinout & Package
Package: TO-244AB - modified JEDEC outline with insulated baseplate, high-purity epoxy encapsulation, and dual terminal lugs for robust mechanical mounting and low-inductance current paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ANODE 1 | First anode connection | Carries half of total forward current; used in center-tapped transformer secondary configurations |
| ANODE 2 | Second anode connection | Completes dual-anode path; enables full-wave rectification with shared cathode return |
| COMMON CATHODE | Shared cathode node | Single low-impedance output node for both legs; simplifies PCB layout and thermal management |
| BASE | Electrically isolated mounting surface | Provides mechanical attachment and thermal conduction path; electrically isolated from all terminals |
Key Features
| Feature | Design Value |
|---|---|
| 150 °C TJ operation | Enables reliable use in sealed enclosures or high-ambient environments without derating |
| Guard ring structure | Improves edge termination robustness against voltage transients and localized avalanche failure |
| High-purity epoxy encapsulation | Provides enhanced moisture resistance and mechanical strength for industrial-grade reliability |
| Low VF at high temperature | Maintains efficiency in thermally stressed conditions where silicon diodes exhibit significant voltage rise |
| Center-tap module architecture | Reduces component count vs. discrete dual-diode solutions and improves current sharing symmetry |
Applications
| High-Current Switching Power Supplies | Uninterruptible Power Systems (UPS) |
|---|---|
Use Scenario: Primary rectification stage in 5–20 kW telecom and server PSUs operating at 100–500 kHz switching frequency. IC Role / Device Role / Timing Role: Center-tap Schottky rectifier providing low-loss, high-frequency AC-to-DC conversion. Use Value: 0.40 V VF at 125 °C minimizes conduction loss, enabling >96% efficiency at full load without liquid cooling. | Use Scenario: Battery-charger and inverter output rectification in three-phase online UPS units with 10–100 kVA capacity. IC Role / Device Role / Timing Role: Dual-leg freewheeling and output rectification element handling bidirectional energy flow. Use Value: 22,500 A IFSM withstands battery short-circuit events; 150 °C TJ rating ensures uptime during extended overload conditions. |
| Industrial Plating Power Supplies | Reverse Battery Protection |
Use Scenario: Electrolytic plating rectifiers delivering 5,000–20,000 A DC output with 3–12 V compliance voltage. IC Role / Device Role / Timing Role: High-current, low-VF rectification module in multi-phase transformer secondary banks. Use Value: 220 A per-leg rating and 0.20 °C/W RthJC allow parallel operation with minimal thermal imbalance across modules. | Use Scenario: Input polarity protection in 12–24 V vehicle-mounted electronics (ECUs, infotainment, ADAS). IC Role / Device Role / Timing Role: Common-cathode Schottky clamp preventing reverse-current damage during jump-start or battery swap. Use Value: Low 0.40 V forward drop limits voltage loss in normal operation; 30 V VRRM covers automotive load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKT220/03 | Same 220 A IF(AV), 30 V VRRM, but TO-264 package; RthJC = 0.25 °C/W per leg | Higher thermal resistance requires larger heatsink area; less rugged guard ring implementation | Preferred when TO-264 footprint compatibility is required over thermal optimization |
| STPS20030CT | 200 A IF(AV), 30 V VRRM, TO-220AC package; VF = 0.52 V @ 100 A, 125 °C | Limited to lower current density; not rated for 150 °C TJ operation | Suitable for cost-sensitive, lower-power (<10 kW) applications where 220 A headroom is unnecessary |
Compared with VSKT220/03 and STPS20030CT, the 220CNQ030 offers superior thermal performance (0.20 °C/W RthJC per package), higher surge rating (22,500 A), and guaranteed 150 °C junction operation-making it optimal for mission-critical, high-power industrial rectification where thermal margin and ruggedness are decisive.
Availability
220CNQ030 is available at Aetrix Electronics and suitable for high-current switching power supplies, uninterruptible power systems (UPS), and industrial plating equipment requiring stable component supply and long-term industrial lifecycle support.
Supply support for 220CNQ030 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 markets.
The 220CNQ... series was developed for high-reliability, high-current rectification in industrial power conversion systems demanding extended temperature operation and surge resilience.
FAQ
What is the maximum junction temperature rating for the 220CNQ030?
The 220CNQ030 is rated for continuous operation up to 150 °C junction temperature, verified per Infineon's industrial qualification standards. This rating is enabled by proprietary barrier technology and high-purity epoxy encapsulation. The 220CNQ030 maintains specified electrical parameters-including 0.40 V forward voltage at 110 A and 125 °C-within this full range. Derating is not required until exceeding 150 °C.
Does the 220CNQ030 have a center-tap configuration, and how is it implemented?
Yes, the 220CNQ030 is a center-tap Schottky rectifier module with two anode terminals (ANODE 1 and ANODE 2) and one shared COMMON CATHODE terminal. This configuration allows full-wave rectification using a center-tapped transformer secondary. The 220CNQ030 integrates both Schottky junctions in a single TO-244AB package with electrically isolated base, enabling compact, symmetrical current paths and balanced thermal distribution.
What is the thermal resistance from junction to case for the 220CNQ030, and is it per leg or per package?
The 220CNQ030 has two thermal resistance specifications: 0.40 °C/W junction-to-case per leg, and 0.20 °C/W junction-to-case per package. The latter value reflects the combined thermal path when both legs operate simultaneously and heat is conducted through the common baseplate. For system-level thermal design, the 0.20 °C/W figure applies when calculating total power dissipation across the entire 220CNQ030 device.
Can the 220CNQ030 be used in reverse battery protection circuits?
Yes, the 220CNQ030 is suitable for reverse battery protection due to its 30 V VRRM rating, low 0.40 V forward voltage at 110 A, and robust avalanche capability (EAS = 99 mJ per leg). In this role, it functions as a common-cathode OR-ing diode, blocking reverse current during incorrect battery connection while minimizing forward voltage drop during normal operation. Its 150 °C TJ rating ensures reliability in under-hood automotive environments.
What packaging and mounting features distinguish the 220CNQ030 from standard TO-247 Schottky diodes?
The 220CNQ030 uses the TO-244AB outline-a modified JEDEC package with insulated baseplate, dual terminal lugs, and high-purity epoxy encapsulation. Unlike TO-247 devices, it provides electrically isolated mounting, lower inductance (7.0 nH per leg), and superior mechanical strength for high-vibration industrial use. The 1/4-20 slotted hex center hole and specified torque values (24–35 kg-cm) ensure secure, repeatable heatsink attachment critical for high-current reliability.
220CNQ030 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):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 220A
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 220 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 mA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- TO-244AB
220CNQ030 FAQ
1.How can I place an order for 220CNQ030 through Aetrix?
Please submit a Request for Quotation (RFQ) for 220CNQ030 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 220CNQ030 reliable?
The price and inventory of 220CNQ030 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 220CNQ030 is usually 5 days.
3.What payment methods are accepted for 220CNQ030?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 220CNQ030 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 220CNQ030?
220CNQ030 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 220CNQ030 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 220CNQ030?
For technical support, including 220CNQ030 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 220CNQ030 requirements.
6.How does Aetrix verify that 220CNQ030 is sourced from the original manufacturer or authorized distributors?
All 220CNQ030 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 220CNQ030 meets industry standards.
7.What is the process for return or replacement of 220CNQ030?
All 220CNQ030 units undergo pre-shipment inspection (PSI). If there is an issue with 220CNQ030, 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 220CNQ030 part is unused and in its original packaging.
Return procedure for 220CNQ030:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
220CNQ030 Tags

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