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The UJ4N075004L8S is onsemi's 750V 4mΩ Silicon carbide (SiC) junction field effect transistor (JFET) in TOLL package, designed for circuit protection applications, especially for demanding scenarios such as solid-state circuit breakers (SSCBS). This transistor has the following core parameters:

FET type: N-channel

Technology: SiCFET (Silicon carbide)

Drain-source voltage (Vdss) : 750 V

Current at 25°C - continuous drain (Id) : 120A (Tc)

Drive voltage (maximum Rds On, minimum Rds On) : 0V, 2V

On-resistance (maximum value) at different ids and Vgs: 4.3 milliohms @ 80A, 2V

Vgs(th) (maximum value) at different ids: 3.7V @ 180mA

Gate charge (Qg) at different Vgs (maximum value) : 400 nC @ 18 V

Vgs (maximum value) : +3V, -30V

Input capacitance (Ciss) at different Vds (maximum value) : 3028 PPF @ 400 V

FET function: -

Power dissipation (maximum) : 1153W (Tc)

Operating temperature: -55°C to 175°C (TJ)

Installation type: Surface mount type

Encapsulation: TOLL

Typical applications

UJ4N075004L8S is mainly used in circuit protection scenarios that require high reliability and high integration, such as solid-state circuit breakers, relays, battery disconnection devices, and surge protection.

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