SKKD160/16
Three-phase rectifier bridge module for AC-DC conversion...
Product Overview
Description
Three-phase rectifier bridge module for AC-DC conversion
Product Series
SKKD™
Primary Application
Three-Phase Rectifiers, AC-DC Power Supplies, Inverter Front Ends, Battery Chargers
Key Features
- High efficiency and reliability
- Optimized for industrial applications
- Comprehensive technical support
- Available from stock
Specifications
| Part Number | SKKD160/16 |
|---|---|
| Voltage | 1600V |
| Current | 160A |
| Package | SEMiX 2 |
| Vf | 1.45V @ 160A |
| Trr | N/A (Rectifier Bridge) |
| Stock | In Stock - 200+ units available |
| Lead Time | Same day shipping |
| Long Description | The Semikron SKKD160/16 is a three-phase rectifier bridge module from Semikron, integrating six power diodes in a compact three-phase bridge configuration. This module is designed for AC-DC conversion in industrial power supplies, motor drive front-end rectifiers, and battery charging systems. Key applications include three-phase AC-DC power supplies from 10kW to 100kW, front-end rectifiers for variable frequency drives (VFD), battery charging systems for industrial and electric vehicle applications, DC power sources for industrial equipment, and renewable energy systems. The module features low forward voltage drop for maximum efficiency, high surge current capability for reliable operation, excellent thermal performance with Rth(j-c) of 0.18 K/W, and compact SEMiX 2 package for space-constrained designs. Manufacturing follows IATF 16949 quality standards with 100% testing including forward voltage measurement, reverse leakage testing, and thermal impedance verification. |
| Features | Three-phase bridge configuration (6 diodes),High voltage rating (1600V),High current rating (160A average),Low forward voltage drop,High surge current capability,Excellent thermal performance,Compact SEMiX 2 package,UL recognized and RoHS compliant |
| Alternatives | SKKD105/16 (105A version),SKKD210/16 (210A version),SKKD160/12 (1200V version) |
| Matching Products | DC link capacitors,EMI input filters,Inrush current limiters,Heat sinks with thermal paste |
| Technical Specs | [object Object] |
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| Seo Title | Semikron SKKD160/16 Rectifier Bridge | 1600V 160A | 3-Phase | LiTong |
| Seo Description | SKKD160/16 - Semikron three-phase rectifier bridge, 1600V 160A. For power supplies, VFD front ends. In stock. Contact: +86 15013702378 |
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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
"SKKD160/16 iswe purpose module. 160A Integration very high, modulethenincluding complete , PCB Designand . in and use module, can excellent. especially isitshot have 0.18 K/W, suitable hot canrelaxeddeal with run. For 30-75kW , this module'sexcellent cost-performance ratio."
160A , Integration high, hot 0.18 K/W
— 钱峰, LiTong Electronics
Frequently Asked Questions
What applications is the SKKD160/16 best suited for?
The SKKD160/16 is optimized for three-phase AC-DC conversion: Variable Frequency Drives - Front-end rectifiers for motor drives 30-75kW, converting 380-480VAC to DC bus
Industrial Power Supplies - AC-DC conversion for industrial equipment, machinery, and automation systems
Battery Charging - Three-phase chargers for industrial batteries, electric vehicles, and backup power systems
Renewable Energy - Grid-tied inverters, solar charge controllers, wind power converters
DC Power Distribution - Industrial DC bus systems, crane controls, elevator drives
UPS Systems - Three-phase uninterruptible power supplies. Key requirements: Three-phase 380-480VAC input, DC output 100-240A, continuous operation, compact size. The integrated bridge design simplifies assembly and reduces component count compared to discrete diodes.
This three-phase rectifier bridge is ideal for your VFD or power supply application. Contact us for volume pricing and technical support.
How do I calculate the DC output current for SKKD160/16?
SKKD160/16 DC output current calculations: Three-Phase Bridge Formula - DC current = 0.955 × AC line current. For 160A AC input, DC output = 153A
Diode Current - Each diode conducts for 120° per cycle. Average diode current = DC current / 3 = 51A at 153A DC
RMS Diode Current = DC current / √3 = 88A at 153A DC. Must be below 160A rating
Power Dissipation - At 153A DC with 1.45V drop: P = 51A × 1.45V = 74W per diode. Total 6 diodes = 444W
Thermal Design - With Rth(j-c) = 0.18 K/W and 74W per diode: Temperature rise = 13.3°C. Ensure heatsink can handle total power
Derating - For long-term reliability, operate at 70-80% of rated current. Maximum recommended DC output: 120-130A continuous. Our FAE team can perform detailed thermal calculations for your specific application.
Proper current calculation is essential for reliable operation. Contact our FAE team for application-specific calculations and design assistance.
What cooling is required for SKKD160/16 at rated current?
SKKD160/16 thermal management requirements: Power Dissipation - At 160A AC input (153A DC output): Total loss ≈ 444W (6 diodes × 74W each)
Heatsink Selection - Forced air cooling: Heatsink with 200-300mm length, 200-300 CFM airflow. Water cooling: Cold plate with 5-8 L/min flow rate
Thermal Resistance - Required total Rth < 0.15 K/W for case temperature <85°C at 50°C ambient
Thermal Interface - Use thermal grease (thermal conductivity >3 W/mK) between module and heatsink. Apply uniform thin layer
Mounting - Tighten screws to 2.5-3.5 Nm in diagonal pattern. Ensure even pressure distribution
Temperature Monitoring - Install thermocouple or thermal sensor on module base. Implement over-temperature shutdown at 85°C
Airflow Direction - For forced air, ensure airflow covers entire module length. Avoid hot air recirculation. Proper cooling ensures long-term reliability.
Proper thermal management is critical for reliable operation. Contact our FAE team for heatsink selection and thermal design assistance.
How do I protect SKKD160/16 in rectifier applications?
SKKD160/16 protection requirements: Inrush Current - Use NTC thermistors (5-10Ω) or soft-start circuit to limit capacitor charging current at power-on
Overcurrent Protection - AC line fuses rated for rectifier applications. Select I2t below diode capability
Voltage Transients - RC snubbers (47Ω + 0.47μF) across AC input to suppress switching transients
Overvoltage Protection - MOVs across AC input (varistor voltage >1.5× peak AC voltage)
DC Bus Protection - DC fuses or circuit breaker on output. Add TVS diodes for fast transient protection
Thermal Protection - Temperature sensor on module base with shutdown at 85°C
EMI Filtering - Three-phase EMI filter on AC input to reduce conducted emissions. Proper protection extends module lifetime and prevents failures from abnormal conditions.
Comprehensive protection is essential for reliable rectifier operation. Contact our FAE team for protection circuit design guidelines.
How does SKKD160/16 compare to using discrete diodes?
SKKD160/16 advantages over discrete diodes: Integration - Single module contains complete three-phase bridge (6 diodes). Reduces component count and assembly time
Thermal Performance - Integrated design ensures matched temperatures and consistent characteristics. Rth(j-c) = 0.18 K/W is excellent
Mounting - Single screw-mount package vs. 6 individual diodes. Simplified mechanical design and reduced assembly cost
Reliability - Factory-matched diodes ensure balanced current sharing. Hermetic package protects against environment
Space Savings - Compact SEMiX 2 package (approx. 60mm x 80mm) vs. 6 discrete TO-247 packages
Cost - Lower total system cost when including PCB area, assembly labor, and inventory
Testing - 100% production tested by Semikron. Guaranteed specifications. Discrete diodes may offer flexibility in voltage/current ratings but require more design effort and PCB space.
SKKD160/16 offers excellent value for three-phase rectification. Contact us for competitive pricing and design support.