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Texas Instruments ULN2803ADWR — Discrete Semiconductors

ULN2803ADWR 8 NPN Darlington Driver, 50V 500mA, Obsolete

MPNULN2803ADWR
Obsolete

Texas Instruments ULN2803ADWR, Automotive AEC-Q100 8 NPN Darlington driver, 50V Vce, 500mA Ic, 1.6V Vce sat, -40°C to 85°C, 18-SOIC surface mount.

$1.2200Ref. price · indicative, final on quote
Texas Instruments ULN2803ADWR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

ULN2803ADWR 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)
PackageTape & Reel (TR); Cut Tape (CT)
Case18-SOIC (0.295\", 7.50mm Width)
Vce saturation (Max) @ ib, ic1.6V @ 500µA, 350mA

Product details

The Texas Instruments ULN2803ADWR packs eight NPN Darlington pairs into an 18-SOIC package, each rated for 500 mA collector current and 50 V collector-emitter breakdown. Each pair includes a base resistor and an integrated suppression diode for driving inductive loads like relays, solenoids, and stepper motors — a common building block in PLC output stages, automotive body controllers, and industrial valve drivers.

50 V, 500 mA per channel — the ratings that matter

Each Darlington pair saturates at 1.6 V maximum with 500 µA base drive and 350 mA collector current.

Frequently asked questions

Is ULN2803ADWR obsolete?

Yes, the ULN2803ADWR is listed as obsolete. Texas Instruments no longer manufactures this specific 18-SOIC Tape & Reel variant. Any procurement must go through the surplus and broker channel.

What is the direct replacement for ULN2803ADWR?

The base product number ULN2803 covers multiple package options; a functionally equivalent replacement must match the 18-SOIC footprint, eight NPN Darlington channels with clamp diodes, 50 V Vce, and 500 mA per-channel rating. Several semiconductor manufacturers offer pin-compatible arrays — verify the saturation voltage and input threshold against your design.