MDQ200 Single-Phase Rectifier Bridge 200A 600V–1600V DC Module
MDQ200 Single-Phase Rectifier Bridge 200A 600V–1600V DC Module
MDQ200 Single-Phase Rectifier Bridge — 200A, 600V–1600V DC Power Module
The MDQ200 single-phase rectifier bridge module is a high-performance, industrial-grade rectifier diode designed for frequency converters, DC power supplies, and a wide range of power electronics applications. Available in voltage ratings of 600V, 800V, 1000V, 1200V, 1600V, and 1800V, this versatile module delivers reliable, consistent rectification with a maximum forward current of 200A (average on-state value).
Whether you're building or maintaining a motor drive, welding equipment, UPS system, or industrial DC power supply, the MDQ200 provides robust performance with a compact, easy-to-install form factor. Custom configurations are available — contact our team for bulk orders and special requirements.
Made in Mainland China.
Key Specifications
- Type: Single-Phase Rectifier Bridge (Rectifier Diode Module)
- Rated Current: 200A (average on-state value)
- Max Forward Current: 500A
- Max Forward Voltage: 1600V
- Max Reverse Current: 500A
- Max Reverse Voltage: 1600V
- Available Voltage Ratings: 600V, 800V, 1000V, 1200V, 1600V, 1800V
- Input Voltage: 220V AC
- Condition: Brand New
- Customization: Available upon request
⚠️ Important Selection & Usage Guidelines
1. Choosing the Right Current Rating
The current rating printed on this module represents the average on-state value, not the long-term RMS operational current. Always select a module with sufficient current margin based on your actual working conditions:
- Resistive Load: Actual current (A) × 2 to 2.5 = Required module rated current (A)
- Inductive Load: Actual current (A) × 6 to 7 = Required module rated current (A)
Leaving adequate margin ensures longevity, thermal stability, and safe continuous operation.
2. Heat Sink Requirement
When the actual operating current exceeds 5A, a properly sized heat sink must be installed to maintain safe operating temperatures and prevent thermal damage to the module. Always ensure adequate thermal management in your design.
3. Stock & Bulk Orders
Standard MDQ200 voltage variants are in stock and ready to ship. For bulk or large-quantity orders, please contact our customer service team to confirm availability and lead time before placing your order.
Common Applications
- Frequency converters and variable frequency drives (VFDs)
- Industrial DC power supplies
- Welding and electroplating equipment
- Motor drive circuits
- UPS and backup power systems
- Battery chargers and power conditioning units
Why Choose the MDQ200 Rectifier Bridge?
- ✅ Wide voltage range options (600V–1800V) for flexible application design
- ✅ High peak current capability (500A) for surge-tolerant performance
- ✅ Compact single-phase bridge package for space-efficient integration
- ✅ Customizable configurations available for OEM and specialty applications
- ✅ New condition, suitable for industrial-grade deployments
For more information on electrical safety standards and power electronics best practices, visit the OSHA Electrical Safety Guidelines.
Frequently Asked Questions
Q: What voltage rating should I select for my MDQ200 rectifier bridge?
A: Choose a voltage rating at least 1.5–2× higher than your circuit's peak reverse voltage to ensure safe and reliable operation. The MDQ200 is available in 600V, 800V, 1000V, 1200V, 1600V, and 1800V variants to suit different application needs.
Q: Does the MDQ200 rectifier bridge require a heat sink?
A: Yes. Whenever the actual operating current exceeds 5A, a properly sized heat sink must be used. Inadequate thermal management can lead to module failure. Always calculate your thermal requirements based on power dissipation and ambient temperature.
Q: What is the difference between the rated current and the maximum forward current on the MDQ200?
A: The 200A rating is the average on-state current — the nominal operating current used for module selection. The 500A maximum forward current is the peak surge value the module can handle momentarily. Always size your selection based on the average current with appropriate safety margins (×2–2.5 for resistive loads, ×6–7 for inductive loads).
Q: Can I order the MDQ200 rectifier bridge in bulk or custom configurations?
A: Yes. Standard models are available in stock for immediate shipment. For bulk orders or custom voltage/current configurations, please contact our customer service team to confirm quantities and delivery timelines before placing your order.