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Texas Instruments ULN2803ADW — Discrete Semiconductors

ULN2803ADW 8 NPN Darlington Array, 50V 500mA, AEC-Q100

MPNULN2803ADW
Obsolete

Texas Instruments ULN2803ADW, 8 NPN Darlington array, 50V Vce breakdown, 500mA collector current, AEC-Q100, -40°C to 85°C, 18-SOIC surface mount.

$1.4700Ref. price · indicative, final on quote
Texas Instruments ULN2803ADW datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ULN2803ADW specifications
ParameterValue
SeriesAutomotive, AEC-Q100
MountingSurface Mount
FET type8 NPN Darlington
Voltage - collector emitter breakdown50V
Current - collector (Ic)500mA
Operating temperature-40°C~85°C(TA)
PackageTube
Case18-SOIC (0.295\", 7.50mm Width)
Vce saturation (Max) @ ib, ic1.6V @ 500µA, 350mA

Product details

Eight-channel Darlington relay and load driver

The Texas Instruments ULN2803ADW integrates eight NPN Darlington pairs in a single 18-SOIC package, each rated for 500 mA collector current and 50 V collector-emitter breakdown. The Darlington configuration delivers a high current gain — each channel saturates at 1.6 V max with 500 µA base drive and 350 mA load, so a 5 V logic output from a PLC or microcontroller can switch a 350 mA relay coil or solenoid directly without an external driver transistor.

The AEC-Q100 marking on the part body is a common target for re-marking, so visual inspection and decap verification are standard steps before use in a production batch.

Frequently asked questions

Is ULN2803ADW obsolete?

Yes, Texas Instruments has classified the ULN2803ADW as Obsolete. No official successor or drop-in replacement part number has been published.

What is the maximum collector current for ULN2803ADW?

Each of the eight Darlington channels is rated for a maximum collector current of 500 mA. The saturation voltage is 1.6 V max at 350 mA collector current with 500 µA base drive.