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Toshiba Semiconductor TCKE805NA,RF — Discrete Semiconductors

TCKE805NA,RF Electronic Fuse, 4.4V-18V Input, 5A Output

MPNTCKE805NA,RF
End of Life

Toshiba TCKE805NA,RF Electronic Fuse IC, 4.4V to 18V input, 5A output, auto retry, 10-WFDFN Exposed Pad, -40°C to 85°C, Tape & Reel.

$1.56Ref. price · indicative, final on quote
Toshiba Semiconductor TCKE805NA,RF datasheet (PDF)
Packaging10-WFDFN Exposed Pad
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TCKE805NA,RF specifications
ParameterValue
MountingSurface Mount
Voltage - input4.4V ~ 18V
Output current5A
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionElectronic Fuse
Case10-WFDFN Exposed Pad

Product details

What this eFuse does on the board

The Toshiba TCKE805NA,RF is an electronic fuse (eFuse) IC that protects downstream circuitry from overcurrent and overvoltage faults. It sits between a 4.4V to 18V supply rail and a load rated up to 5A, acting as a resettable circuit breaker with a built-in charge pump and power FET. When a fault clears, the auto-retry function reconnects the load automatically — no manual reset or power cycle needed. That is handy in remote or inaccessible equipment where a hard latch-off would mean a site visit.

Frequently asked questions

Does TCKE805NA,RF support auto retry and what triggers it?

Yes, it supports auto retry. After an overcurrent or overvoltage fault clears, the eFuse automatically reconnects the load without external intervention.