Toshiba Unveils eFuse ICs for 1.8V Power Line Protection
What happened
Toshiba Electronics Europe GmbH has introduced the TCKE5 Series of electronic fuse ICs (eFuses), designed to protect low-voltage power lines in space-constrained electronic equipment. The series includes four models (TCKE501UA, TCKE501UL, TCKE502UA, TCKE502UL), operates from 1.7V to 5.5V, and supports 1.8V, 3.3V, and 5V supply rails in applications such as SD memory cards, USB and HDMI devices, laptop PCs, and gaming consoles. The devices combine overcurrent detection and short-circuit protection in a compact SOT-353F (UFV) package; an external resistor sets the overcurrent detection threshold, and the typical overcurrent mask time is 2.4ms. The UA variants automatically retry operation after a fault, while the UL variants latch off and require an external signal to restart. All four devices support a maximum DC output current of 1.0A, and each IC measures 2.0mm × 2.1mm × 0.7mm (typ.). For input voltages from 5V to 5.5V, Toshiba advises following the datasheet recommendations for output capacitance or using an external Schottky barrier diode to manage voltage transients during short-circuit protection. Shipments of the TCKE5 Series have started.
Impact and signal
Affected components and suppliers
Source and time
Source: Power Electronics News · 10/26/2026 · View original source
Real-time pricing, supply signals and AI analysis for semiconductor traders