PTC Resettable Fuse

SK30-400Active

The SK30-400 is a radial leaded, 30R series resettable PPTC overcurrent protector with a rated holding current of 4.0A, designed to provide reliable overcurrent protection for low-voltage (≤30V) electronic applications. It is widely applicable to USB devices, chargers, power adapters, and various consumer electronics products.

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Electrical Parameters

Part Number SK30-400

Package SK30

IHOLD [Max] (A) 4

ITRIP [Min] (A) 8

VMAX (V) 30

IMAX (A) 40

Time to trip Current (A) 20

Time to trip Time (S) 12.7

RMIN (Ω) 0.01

R1MAX (Ω) 0.06

Status Active

Product Features

Radial-lead, 30R series package – compact design suitable for through-hole PCB mounting. Resettable PPTC overcurrent protection – automatically limits overcurrent and restores to normal operation. 4.0A hold current, fast time-to-trip – ensures reliable protection while minimizing impact on normal operation. Low-voltage applications (≤30 V) – ideal for USB devices, chargers, power adapters, and consumer electronics. Lead-free and halogen-free – environmentally friendly and safe for global applications. RoHS compliant – meets international standards for hazardous substance restrictions.