Toshiba Releases New TCKE5 Series eFuse ICs
The new series provides compact overcurrent and short-circuit protection for low-voltage power lines in electronic devices.
Updated on Oct. 31, 2026 in Semiconductors
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Toshiba has officially launched its TCKE5 Series of eFuse ICs, which are now available for global distribution. These devices are designed to provide essential overcurrent and short-circuit protection for small-scale electronic equipment.
Why it matters
As modern consumer electronics become smaller and more compact, engineers require specialized components to protect sensitive, low-voltage power circuits. This new series offers a compact solution to safeguard hardware against electrical faults.
The TCKE5 series supports input voltages between 1.7V and 5.5V and offers a current surge masking period of 2.4ms. The units are housed in SOT-353F packages with dimensions of 2.0mm by 2.1mm by 0.7mm.
The players
Toshiba
Toshiba is a major Japanese multinational conglomerate that designs and manufactures a wide range of electronic components, semiconductors, and digital equipment.
The details
Engineers can configure the overcurrent detection threshold using an external resistor, while slew-rate options allow for custom power-sequencing adjustments. The series includes four distinct models, with UA variants providing automatic retry and UL variants utilizing a latch-off mechanism.
Timeline
Shipments of the new TCKE5 Series began on October 31, 2026.
The Tech Race
This release follows the ongoing industry trend of miniaturizing integrated circuit eFuse technology to support increasingly compact consumer electronic designs. By shrinking these protective components, Toshiba aims to maintain competitiveness in the high-density power management sector.
For device engineers, these chips allow for more flexible circuit design and faster implementation of power-sequencing requirements. The compact size of the new ICs may enable manufacturers to create thinner and smaller consumer electronics without sacrificing circuit safety.
The takeaway
Designers should evaluate whether the UA automatic retry or the UL latch-off mechanism is more suitable for their specific power-sequencing needs. Utilizing these compact eFuse components can simplify hardware protection schemes while maintaining a minimal physical footprint.
Further reading
For more information on the latest hardware developments, visit our Semiconductors section.
Source note: This article includes information reported by Electronic Specifier.
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