Overview
onsemi SiC JFETs are high-performance, normally-on transistors available with voltage ratings from 650 V to 1700 V. Leveraging the intrinsic advantages of SiC technology, they deliver ultra-low on-resistance (RDS(on)), low gate charge (Qg), and high-frequency switching capability, enabling reduced conduction and switching losses while maximizing power density. Their highly efficient architecture utilizes significantly less die area than alternative technologies, supporting compact, high-performance system designs.
Optimized for high-efficiency power conversion, SiC JFETs are well suited for Power Supply Units (PSUs), intermediate bus converters (IBC), and high-voltage DC-DC converters that support the growing power requirements of AI data center infrastructure. The devices also excel in hot-swap, eFuse, and linear-mode applications, enabling fast, reliable protection and control in Solid-State Circuit Breakers (SSCBs), EV Battery Disconnect Units (BDUs), and advanced power distribution systems.
Browse Silicon Carbide (SiC) JFETs
650V JFETs
750V JFETs
1200V JFETs
1700V JFETs
Featured Product
UJ4N075004L8S - Silicon Carbide (SiC) JFET
The UJ4N075004L8S is a 750 V, 4.3 mΩ high-performance Gen 4 normally-on SiC JFET transistor.
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Featured Product
UJ4N075005K4S - Silicon Carbide (SiC) JFET
The UJ4N075005K4S is a 750 V, 4.8 mΩ high-performance Gen 4 normally-on SiC JFET transistor.
Product Page
Featured Documents
JFET Primer - Construction and Operation of the SiC JFET
SiC JFET in Active Mode Applications
Design of a Flyback Converter Using Source‐Switched SiC JFET
Using SiC JFET SPICE Model in LTSPICE
EliteSiC JFET Based High Voltage Hot‐Swap Application
Advancing Power Circuits: SiC JFETs in Solid-State Circuit Breakers
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Product Groups:
9
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Orderable Parts:
9
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Product Groups:
9
┗
Orderable Parts:
9
Product Group
Active
Pb
H
Gen3
1200
550
7.1
TO-247-4L
830
368
175
N
TO-247-4
NA
0
No
$47.5855
More Details
Active
Pb
H
Gen3
1700
16
400
D2PAK-7L
30
22
175
N
D2PAK-7 / TO-263-7
1
255
No
$5.3999
More Details
Active
Pb
H
Gen3
650
250
25
TO-247-3L
240
290
175
N
TO-247
NA
0
No
$15.2796
More Details
Active
Pb
H
Gen3
650
72
80
TO-247-3L
75
94
175
N
TO-247
NA
0
No
$5.7599
More Details
Active
Pb
H
Gen3
1200
185
35
TO-247-3L
235
180
175
N
TO-247
NA
0
No
$23.7994
More Details
Active
Pb
H
Gen3
1200
90
66
TO-247-3L
114
100
175
N
TO-247
NA
0
No
$12.9063
More Details
Active
Pb
H
Gen3
1200
85
70
TO-247-3L
116
100
175
N
TO-247
NA
0
No
$11.893
More Details
Active
Pb
H
Gen4
750
588
4.3
TOLL
400
364
175
N
H-PDSO-F8 9.90x10.38x2.30, 1.20P
1
260
No
$31.9312
More Details
Active
Pb
H
Gen4
750
588
4.8
TO-247-4L
400
364
175
N
TO-247-4
NA
0
No
$32.5672
More Details
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