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Power Applications

Residential & Light Commercial Solar Systems

Wolfspeed silicon carbide is enabling smaller, lighter and more affordable residential solar systems

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Silicon Carbide powering homes across the globe

Every home’s energy needs are unique. Wolfspeed’s Silicon Carbide devices are making it possible to build smaller, more efficient and power dense residential solar energy system, meaning clean energy is now more affordable, reliable and resilient than ever, all while meeting emerging efficiency standards.

Graphic showing string and micro inverter solar systems with photo and two dimensional examples

Micro and Single-Phase Inverters

Solar inverters are an integral part of the residential solar system, converting DC current generated by the photovoltaic panel to grid-ready AC. Micro inverters are used in residential settings, converting power for 1-4 solar panels in systems that are < 7 kW. Single-phase string inverters connect larger solar arrays of 5-50 panels in systems that are 5-15 kW and are well suited to larger residential and light commercial applications.

Using Wolfspeed silicon carbide MOSFETs in residential solar inverters creates increased power density and lower switching losses. For example, replacing traditional IGBTs with Wolfspeed’s 650 V MOSFETs in a 7 kW residential single-phase inverter achieves 0.4% higher efficiency, a significant increase in power density (3 kW/L vs. 2.5 kW/L) and an impressive 48 kHz switching frequency, a full 32 kHz higher than using silicon. Wolfspeed’s C3M0045056K MOSFET is a key switch for single-phase systems offering a leading On Resistance over temperature performance and up to 30% less peak reverse recovery current.


String Inverters for Residential/Light Commercial Systems

Using MPPT Boost Converters in residential and light commercial solar arrays takes the variable voltages produced between panels and generates a consistent, higher voltage to the internal bus. Silicon Carbide Schottky diodes are a proven cost-effective way to maximize MPPT boost circuit performance. Adding Silicon Carbide MOSFETs can provide additional efficiency in even the most challenging designs. Combining 650 V silicon carbide MOSFETs with 650 V Schottky Diodes can further boost efficiency to 1.8% in a 7 kW residential system block with zero design changes.

Improved Reliability, Cleaner Power from Wolfspeed SiC

Wolfspeed Silicon Carbide is uniquely capable of incredible reliability and efficiency, even in the most demanding power applications. That’s because Wolfspeed Silicon Carbide offers:

Up To
30%
Lower Losses
Up To
50%
Higher Power Density
Up To
10%
System Cost Savings

Discrete Silicon Carbide MOSFETs

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Discrete Silicon Carbide MOSFETs

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Discrete Silicon Carbide MOSFETs

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Blocking Voltage
RDS(ON) at 25°C
Generation
Current Rating
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C3M0025065K
650 V
25 mΩ
Gen 3
97 A
112 nC
178 pF
326 W
175 °C
TO-247-4
Yes
Industrial
650 V
45 mΩ
Gen 3
49 A
63 nC
101 pF
176 W
175 °C
TO-247-4
Yes
Industrial
650 V
60 mΩ
Gen 3
37 A
46 nC
80 pF
150 W
175 °C
TO-247-4
Yes
Industrial

Discrete Silicon Carbide Schottky Diodes

Discrete Silicon Carbide Schottky Diodes

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Discrete Silicon Carbide Schottky Diodes

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650 V
16 A
Gen 6
1.27 V
16 A
29 nC
100 W
TO-247-3
Yes
Industrial

Featured Reference Designs

Featured Reference Designs

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Featured Reference Designs

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CRD-15DD17P
15 W Flyback Auxiliary Power Supply
DC to DC
Flyback
0.015kW
Discrete
TO-263-7
Wolfspeed

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Wolfspeed: A trusted name in Silicon Carbide

Wolfspeed is the world’s first vertically integrated supplier of Silicon Carbide materials and devices; a legacy that makes us a trusted partner with renewable energy system designers across the globe. Our engineers leverage more than 10 trillion hours of experience to help you develop renewable energy solutions that meet emerging efficiency standards and power your success in the marketplace.

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Power Modules

Wolfspeed WolfPACK™ Power Module Press-In Process

In this video, we’ll walk you through the press-in and press-out process for Wolfspeed WolfPACK™ silicon carbide power modules, which are available with and without pre-applied thermal interface material (TIM).
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Understanding Wolfspeed’s WolfPACK™ Power Module Family: Your Questions Answered!

Wolfspeed WolfPACK™ modules are a great choice for designers who want to increase efficiency and power density in a compact, industry-standard footprint. The family of modules provides an excellent solution for fast design implementation, scalability, long-term design support, and lower assembly overhead.
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