GDR200A12
1200V 200A diode rectifier module with 0.85V VF, ideal for welding and plating applications.
Product Overview
Description
1200V 200A diode rectifier module with 0.85V forward voltage. High surge current capability for reliable operation.
34mm standard package with excellent thermal performance. Low thermal resistance for high-current applications.
In stock for welding and plating applications. FAE support for thermal design and system optimization.
Product Series
1200V Diode
Primary Application
Key Features
- High efficiency and reliability
- Optimized for industrial applications
- Comprehensive technical support
- Available from stock
Specifications
| Part Number | GDR200A12 |
|---|---|
| Voltage | 1200V |
| Current | 200A |
| Vf | 0.85V |
| Irrm | 10mA |
| Package | 34mm |
| Short Description | 1200V 200A diode rectifier module with 0.85V VF, ideal for welding and plating applications. |
| Description Paragraphs | 1200V 200A diode rectifier module with 0.85V forward voltage. High surge current capability for reliable operation.,34mm standard package with excellent thermal performance. Low thermal resistance for high-current applications.,In stock for welding and plating applications. FAE support for thermal design and system optimization. |
| Features | Low forward voltage drop: 0.85V at IF = 200A,High surge current capability: 2000A for 10ms,Low reverse leakage: 10mA at VR = 1200V,34mm package with RthJC = 0.45K/W,Fast reverse recovery: trr = 200ns typical,High reliability for industrial applications |
| Applications | Welding machines,Plating power supplies,DC motor drives,Battery chargers,Induction heating |
| Stock | In Stock |
| Moq | 10 |
| Lead Time | 2-3 weeks |
| Faqs | [object Object],[object Object],[object Object],[object Object],[object Object],[object Object] |
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| Alternative Parts | [object Object],[object Object] |
| Companion Parts | COMP-A,COMP-B,COMP-C |
| Slug | gdr200a12 |
Applications
Motor Drives
Variable frequency drives and servo motor controls
Power Supplies
SMPS, UPS, and industrial power systems
Renewable Energy
Solar inverters and wind turbine converters
EV Charging
Electric vehicle charging stations
FAE Expert Insights
"Good performance and reliability. Suitable for various industrial applications."
Reliable, good performance
— Senior FAE, LiTong Electronics
Frequently Asked Questions
What is the forward voltage drop of GDR200A12?
GDR200A12 has a low forward voltage drop of 0.85V typical at rated current (IF = 200A) and 25°C junction temperature. The forward voltage has a positive temperature coefficient, increasing to approximately 0.75V at 125°C. This low VF minimizes conduction losses, improving overall rectifier efficiency. For a 200A rectifier, the conduction loss is 170W per diode at rated current. The low VF is achieved through advanced chip design and optimization of the conducting area. Starpower provides detailed forward characteristics curves in the datasheet.
Contact our FAE team for forward voltage analysis and efficiency calculations.
What is the thermal resistance of GDR200A12?
GDR200A12 in 34mm package has the following thermal characteristics: (1) Junction-to-case thermal resistance RthJC = 0.45K/W. (2) Maximum junction temperature Tj(max) = 150°C. (3) Recommended operating junction temperature Tj(op) = -40°C to +125°C. For continuous operation at 200A with 0.85V VF, the conduction loss is 170W, requiring a heatsink with thermal resistance of approximately 0.3K/W or better to maintain junction temperature below 125°C at 40°C ambient. Forced air cooling is typically required for continuous operation at full current. Proper thermal interface material is essential for good heat transfer.
Contact our FAE team for thermal simulation and heatsink selection guidance.
Can GDR200A12 be used for welding machine applications?
Yes, GDR200A12 is ideal for welding machine applications. Its characteristics make it perfect for this demanding application: (1) 1200V rating provides adequate margin for 380-480VAC input rectification. (2) 200A current rating supports welding power supplies up to 50-75kW. (3) Low VF of 0.85V minimizes conduction losses and heating. (4) High surge current capability (2000A) withstands inrush currents during arc starting. (5) Fast reverse recovery (200ns) reduces switching losses in high-frequency welding. (6) Rugged 34mm package withstands vibration and thermal cycling in welding environments.
Contact our FAE team for welding power supply design support and rectifier configuration.
What is the reverse recovery time of GDR200A12?
GDR200A12 has a fast reverse recovery time of 200ns typical at IF = 200A and di/dt = 200A/μs. The reverse recovery charge Qrr is approximately 40μC. Fast reverse recovery is important for high-frequency rectification and reduces switching losses in applications with rapid current commutation. The soft recovery characteristics minimize voltage overshoot and EMI. For standard 50/60Hz rectification, reverse recovery is not critical, but for high-frequency applications such as welding inverters, fast recovery reduces losses and improves efficiency.
Contact our FAE team for reverse recovery characteristics data and high-frequency rectification design.
How does GDR200A12 compare to thyristor modules for rectification?
GDR200A12 (diode) and thyristor modules serve different rectification needs: (1) GDR200A12 provides uncontrolled rectification with fixed output voltage determined by AC input. Simple and reliable but no voltage control. (2) Thyristor modules provide phase-controlled rectification allowing output voltage adjustment. More complex control but enables soft-start and voltage regulation. Diodes have lower forward voltage drop and are more efficient for simple rectification. Thyristors are needed when voltage control or soft-start is required. For welding applications, diode bridges are often preferred for simplicity, while thyristors are used when current control is needed.
Contact our FAE team for diode vs thyristor selection for your specific rectification requirements.
What is the surge current capability of GDR200A12?
GDR200A12 has high surge current capability for reliable operation under overload conditions: (1) Non-repetitive surge current IFSM = 2000A for 10ms half-sine wave. (2) Repetitive surge current capability depends on duty cycle and cooling. (3) I²t rating = 20,000 A²s for fuse coordination. This high surge capability ensures the module can withstand inrush currents during startup, capacitor charging, and fault conditions. For applications with frequent high-current transients, proper heatsinking and thermal management are essential to prevent junction temperature from exceeding limits during surge events.
Contact our FAE team for surge current analysis and protection coordination.