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Industrial

Heat Pump & Air Conditioning

Wolfspeed silicon carbide meets efficiency standards while enabling smaller, lighter, more efficient industrial low voltage motor drives.

Silicon carbide enables more efficient heat pumps and air conditioners with minimal redesign​​

Today, heating and cooling systems consume more than 50% of all energy produced globally. Increasingly stringent energy efficiency standards including the American SEER ratings; ESEER and SCOP levels in Europe, the middle east and Africa; and China’s GB21455 standards are all targeting reducing the impact heating and cooling have on our power grid and on the warming planet. ​

Switching from traditional silicon to Wolfspeed Silicon Carbide devices can increase a heating or cooling system’s efficiency while reducing overall unit size and cost of ownership. Silicon carbide enables increased SCOP levels, superior thermal performance and less audible noise (>20 kHz frequency). 


Reduce size while boosting efficiency at high temperatures

Six-pack Wolfspeed WolfPACK™ power modules enable superior performance and system efficiency. When compared to leading IGBT solutions in a 25 kW inverter system, the WolfPACK™ achieves 1.1% higher efficiency with a 77% smaller heat  sink (0.31 L vs 1.37 L). ​

Conversely, the WolfPACK can run at higher loads with smaller heat sinks, allowing designers to design embedded drive systems that are smaller and lighter and require up to 77% smaller heat sinks. Even at a higher 16 kHz switching frequency with the same heat sink,  silicon carbide remains thermally stable and outperforms silicon IGBTs. Additionally, due to higher switching frequencies, silicon carbide enables reduced audible noise compared to a silicon IGBT system, without compromising efficiency. 

SiC MOSFET remains cooler than all the Si IGBTs, even with 77% smaller heat sink​

25 kW inverter, Fsw = 8 kHz, 77% reduced SiC MOSFET Heat Sink: 0.31L (1.6°C/W) vs. 1.37 L (0.73°C/W)

The graphs above demonstrate the improvement in efficiency with silicon carbide Six-Pack WolfPACK™ modules vs IGBT modules in a 25 kW inverter with an 0.8 L heat sink. As the power level increases, the junction temperature of 50 A and 100 A rated silicon IGBTs increases, causing them to fail, while Wolfspeed 32 A silicon carbide MOSFET remains stable and well below the failure threshold.

SiC enables superior performance even at higher switching frequencies

25 kW inverter, Fsw = 16 kHz, Larger Si IGBT Heat Sink: 1.37 L (0.7°C/W) , smaller SiC Heat Sink 0.8 L (0.99°C/W)

At 16kHz switching frequency, we see 100 A and 50 A rated silicon IGBTs fail thermally beyond 10 kW and 15 kW respectively, despite using a 41% larger heat sink size than 32 A Wolfspeed silicon carbide MOSFETs. 


650 V silicon carbide MOSFETs deliver power and efficiency with little to no redesign requirements

Image that includes both the front and back of the TO-247-4 package used for Wolfspeed's discrete Silicon Carbide power devices including SiC MOSFETs and Schottky diodes.

Wolfspeed’s 650 V silicon carbide MOSFETs and diodes in smaller 11 kW heat pump and air conditioner systems offer significant benefits over traditional silicon IGBTs. By simply dropping in C6D16065D Schottky diodes to upgrade an 11kW system improves overall system efficiency by 0.5%. Efficiency improvement increases to 2.4% in a bridgeless TP-PFC when the PFC is redesigned and inverter upgraded with silicon carbide.​

When compared to high-speed, soft-switched IGBTs, Wolfspeed 650 V MOSFETs offer drastically lower conduction losses and almost no switching losses. 


Model silicon carbide efficiency with SpeedFit™​

Maximize heat pump and air conditioning efficiency when you simulate with SpeedFit Design Simulator, the first step to selecting the right devices for your design. Our online simulation tool offers an easy-to-use interface for evaluating Wolfspeed’s silicon carbide MOSFETs, diodes and power modules many power topologies. Start simulating today and harness the power of Wolfspeed silicon carbide in your heat pumps and air conditioners.​

Simulate Now​

Wolfspeed Silicon Carbide Components for Heat Pumps and Air Conditioning

Wolfspeed’s products represent the culmination of years of experience and expertise, where quality meets innovation to help bring your design forward.

Discrete Silicon Carbide MOSFETs

Discrete Silicon Carbide MOSFETs

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Discrete Silicon Carbide MOSFETs

Product SKU
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Data Sheet
CAD Model
Blocking Voltage
RDS(ON) at 25°C
Generation
Current Rating
Gate Charge Total
Output Capacitance
Total Power Dissipation (PTOT)
Maximum Junction Temperature
Package
Recommended For New Design?
Qualification
C3M0075120K
1200 V
75 mΩ
Gen 3
32 A
51 nC
58 pF
113.6 W
150 °C
TO-247-4
Yes
Industrial
1200 V
75 mΩ
Gen 3
30 A
51 nC
58 pF
113.6 W
150 °C
TO-263-7
Yes
Industrial
1200 V
40 mΩ
Gen 3
64 A
61 nC
94 pF
272 W
150 °C
TO-263-7
Yes
Industrial
650 V
15 mΩ
Gen 3
120 A
188 nC
289 pF
416 W
175 °C
TO-247-4
Yes
Industrial
650 V
45 mΩ
Gen 3
47 A
61 nC
101 pF
147 W
150 °C
TO-263-7
Yes
Industrial
650 V
60 mΩ
Gen 3
36 A
46 nC
80 pF
136 W
175 °C
TO-263-7
Yes
Industrial
1200 V
32 mΩ
Gen 3
68 A
111 nC
133 pF
277 W
150 °C
TO-263-7
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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Data Sheet
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Blocking Voltage
Current Rating
Generation
Forward Voltage(VF(type))
Maximum Continuous Current (IF)
Total Capacitive Charge (QC (typ))
Total Power Dissipation (PTOT)
Package
Qualification
Recommended For New Design?
1200 V
10 A
Gen 4
1.5 V
10 A
52 nC per leg
170 W
TO-252-2
Industrial
Yes
650 V
16 A
Gen 3
1.5 V
16 A
44 nC
150 W
TO-220-2
Industrial
Yes
650 V
16 A
Gen 6
1.27 V
16 A
29 nC
100 W
TO-247-3
Industrial
Yes

Silicon Carbide Power Modules

Silicon Carbide Power Modules

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Silicon Carbide Power Modules

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FM3
Six-pack (three-phase)
1200 V
30 A
32 mΩ
Gen 3 MOS
150 °C
62.8 mm x 33.8 mm
Yes
Industrial

Reference Designs

Reference Designs

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Reference Designs

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25kW FM3 Three-Phase Inverter
New
Three-Phase, 2-Level
Available for Purchase
FM3
Wolfspeed
CRD25DA12N-FMC
Three-Phase, 2-Level
Paper Design Only
TO-247-4
Wolfspeed
CRD-22AD12N

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Power Modules

Announcing the Newest Additions to the Wolfspeed WolfPACK™ Power Module Family

Read about the all new Wolfspeed WolfPACK™ power modules. These modules give designers scalability and efficiency along with maintaining the simplicity of the design.
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