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TPS25921ADR

TPS25921ADR Electronic Fuse, 4.5V-18V Input, 1.7A Output

MPNTPS25921ADR
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Texas Instruments TPS25921ADR electronic fuse, 8-SOIC package, 4.5V to 18V input range, 1.7A output current, ±2% accuracy, -40°C to 125°C junction temperature.

$1.6900Ref. price · indicative, final on quote
Texas Instruments TPS25921ADR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

TPS25921ADR specifications
ParameterValue
MountingSurface Mount
Voltage - input4.5V ~ 18V
Output current1.7A
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Accuracy±2%
FunctionElectronic Fuse
Case8-SOIC (0.154\", 3.90mm Width)

Product details

What this electronic fuse does on your rail

The Texas Instruments TPS25921ADR is an integrated electronic fuse — a single-chip replacement for a P-channel MOSFET, sense resistor, and hot-swap controller — that protects a downstream load from overcurrent, overvoltage, and inrush on a 4.5V to 18V input rail. It delivers up to 1.7A continuous output with a ±2% current-limit accuracy, which means you can set the trip threshold tight against the load's maximum draw without leaving a big guard band.

Surface-mount assembly on an 8-SOIC with standard lead-free reflow profile — no special bake-out or moisture sensitivity level beyond typical MSL-1 or MSL-2 handling.

Frequently asked questions

What is the current limit of TPS25921ADR?

Continuous output current is rated at 1.7A with a ±2% accuracy on the current-limit threshold.

What is the difference between TPS25921ADR and TPS25921AD?

The TPS25921ADR and TPS25921AD share the same base product number (TPS25921) and electrical specs; the 'R' suffix typically denotes Tape & Reel packaging vs tube or alternate reel format. Pin-compatible and functionally identical.