XLN-RECT35A
Xinleineng XLN-RECT35A 1600V 35A ultrafast recovery rectifier module. Ideal for 15-25kW motor drives.
Product Overview
Description
The Xinleineng XLN-RECT35A is a 1600V 35A three-phase bridge rectifier module featuring ultrafast recovery diodes. With recovery times under 200ns and soft recovery characteristics, this module is optimized for switch-mode power supplies and motor drive input stages operating at frequencies from 1kHz to 20kHz. The 1600V rating provides margin for 690V AC systems while the 35A current supports motor drives from 15kW to 25kW. Low forward voltage (1.2V typical at 25A) minimizes conduction losses. The module includes an integrated NTC thermistor for thermal monitoring.
Product Series
RECT Series
Primary Application
Motor Drives, Solar Inverters, UPS
Key Features
- 1600V blocking voltage
- 35A continuous current
- Ultrafast recovery <200ns
- Soft recovery characteristics
- Low forward voltage drop 1.2V
- Integrated NTC thermistor
- Standard 34mm package
- RoHS compliant
Specifications
| Voltage Rating | 1600V |
|---|---|
| Current Rating | 35A |
| Forward Voltage VF | 1.2V @ 25A |
| Recovery Time | <200ns |
| Operating Temperature | -40C to +150C |
| Package | 34mm |
Applications
Motor drive input rectifier
Motor drive and control systems
Solar inverter input stage
Renewable energy systems
UPS systems
Electronic system design
Battery chargers
Battery and charging management
Power supplies
Electronic system design
FAE Expert Insights
"The XLN-RECT35A is a reliable choice for motor drive input rectification. I have used this in numerous 22kW VFD designs with excellent results. The ultrafast recovery is important for modern VFDs operating at high switching frequencies - slower diodes would cause significant recovery losses. The 1600V rating gives good margin for 690V systems with voltage spikes. Thermal performance is adequate with proper heatsinking. One tip: the NTC thermistor is useful for over-temperature protection - connect it to your drive controller for thermal monitoring. For three-phase rectification, the module handles the full bridge configuration in one compact package."
Reliable ultrafast rectifier for motor drive input stages with excellent recovery characteristics
— Michael Zhang, BeiLuo
Frequently Asked Questions
What is the maximum power handling for XLN-RECT35A?
XLN-RECT35A supports motor drives from 15kW to 25kW at 380V AC input. At 380V, the DC bus voltage is approximately 540V DC after rectification. The 35A rating provides margin for starting currents and overload conditions. For a 22kW drive, average DC current is approximately 40A, within the module's capability with proper thermal design. The module can handle short-term overloads to 50A for motor starting.
Contact FAE for motor drive sizing calculations including overload requirements.
What causes rectifier module failure?
Common rectifier failure causes include: Thermal runaway from poor current sharing in parallel configurations; Overvoltage from lightning or supply transients exceeding 1600V rating; Thermal cycling fatigue from frequent on/off operation; Mechanical stress from thermal expansion mismatch; Excessive recovery current from very high di/dt during turn-off. Prevention includes: proper heatsink design, voltage clamping (TVS diodes), derating for thermal cycling, and avoiding rapid load changes.
Implement proper thermal design and voltage protection to ensure reliable rectifier operation.
How do I test a rectifier module for proper operation?
Testing rectifier modules involves: Forward voltage measurement - check each diode with a diode tester or DMM in diode mode; typical reading 0.4-0.8V for silicon diode. Reverse leakage measurement - apply rated voltage and measure leakage current (should be <1mA). Thermal test - operate at rated current and verify case temperature stabilizes within design limits. Recovery time test - requires oscilloscope with current probe to observe recovery waveform. Any diode reading showing short circuit (0 ohms) or very high forward voltage indicates failure.
Contact FAE for detailed testing procedures and failure analysis.
What is the typical efficiency when using XLN-RECT35A?
The XLN-RECT35A achieves high efficiency through optimized design. Conduction losses are minimized with low forward voltage drop, and switching losses are controlled through proper gate drive design. Overall system efficiency depends on operating conditions, switching frequency, and thermal management. Contact FAE for efficiency calculations specific to your application.
Optimize efficiency by selecting appropriate switching frequency and implementing proper thermal design.
What are the common failure modes of XLN-RECT35A and how to prevent them?
Common failure modes include thermal overload from insufficient cooling, overvoltage from switching transients, and mechanical stress from thermal cycling. Prevention measures include proper heatsink sizing, voltage clamping with TVS diodes, and following recommended mounting procedures. The integrated protection features help prevent damage from abnormal operating conditions.
Implement comprehensive protection and follow recommended operating conditions to ensure reliable operation.