QL Series Single-Phase Rectifier Bridge 40A–150A 1000V–1600V
QL Series Single-Phase Rectifier Bridge 40A–150A 1000V–1600V
QL Series Single-Phase Rectifier Bridge — Reliable AC-to-DC Conversion
The QL Series Single-Phase Rectifier Bridge is a high-performance bridge rectifier module designed for converting alternating current (AC) to direct current (DC) in a wide range of electrical and industrial applications. Available in multiple current and voltage ratings — including 40A, 60A, 80A, 100A, and 150A at 1000V, 1200V, and 1600V — this series offers the flexibility to match your exact circuit requirements.
Whether you're building power supplies, motor drives, battery chargers, or industrial control systems, the QL rectifier bridge delivers consistent, efficient, and stable performance in a robust single-phase package.
Key Features
- Multiple Ratings Available: Current ratings of 40A, 60A, 80A, 100A, and 150A; voltage ratings of 1000V (QL100A-10), 1200V (QL100A-12), and 1600V (QL100A-16 / QL60A1600V)
- Single-Phase Bridge Design: Full-wave rectification in a compact, easy-to-mount module
- High Voltage Tolerance: Supports up to 1600V peak repetitive reverse voltage (VRRM) for demanding applications
- Robust Construction: Sturdy housing with bolt-mount terminals for secure installation and reliable electrical connections
- Wide Application Range: Suitable for power supplies, welding equipment, motor drives, battery chargers, and industrial control panels
- Low Forward Voltage Drop: Minimizes energy loss and heat generation during operation
- Standard Pinout: Compatible with common PCB and chassis-mount configurations
Specifications
| Series | QL (Single-Phase Rectifier Bridge) |
| Current Ratings | 40A, 60A, 80A, 100A, 150A |
| Voltage Ratings (VRRM) | 1000V, 1200V, 1600V |
| Configuration | Single-Phase Full-Wave Bridge |
| Mounting Type | Bolt/Chassis Mount |
| Country of Origin | Made in Mainland China |
Common Applications
- AC-to-DC power supply units
- Welding machines and battery charging systems
- Motor speed controllers and variable frequency drives
- Industrial automation and control panels
- Uninterruptible power supplies (UPS)
Safety & Installation
Always ensure the rectifier bridge is properly rated for your application's current and voltage requirements before installation. Use appropriate heat sinking and ensure all connections are secure. For safe handling of high-voltage electronic components, refer to guidelines from the U.S. Occupational Safety and Health Administration (OSHA) — Electrical Safety.
Frequently Asked Questions
Q: What is a single-phase rectifier bridge and what does it do?
A: A single-phase rectifier bridge is an electronic component that converts single-phase AC (alternating current) into DC (direct current) using a full-wave bridge circuit consisting of four diodes. This is essential for powering DC loads from an AC supply in applications such as power supplies, battery chargers, and motor drives.
Q: How do I choose the right QL rectifier bridge for my application?
A: Select a QL rectifier bridge rated for at least the peak current and voltage your circuit will experience. For example, for a 100A load on a 1200V system, the QL100A1200V (QL100A-12) is the appropriate choice. Always add a safety margin and consult the component datasheet for thermal derating guidelines.
Q: Does the QL Series rectifier bridge require a heat sink?
A: At higher current levels (e.g., 80A and above), a heat sink is strongly recommended to dissipate the heat generated during operation and maintain long-term component reliability. The bolt-mount design facilitates easy attachment to a chassis or dedicated heat sink.
Q: What is the difference between the 1000V, 1200V, and 1600V variants?
A: The voltage rating (VRRM) indicates the maximum peak repetitive reverse voltage the rectifier bridge can safely handle. Higher voltage variants (e.g., 1600V — QL100A-16, QL60A1600V) are suited for applications with higher AC supply voltages or where additional voltage headroom is required for safety and reliability.