ULN2803A

Bipolar junction transistor, NPN, 500 mA, 50 V, THT, PDIP-18, ULN2803A

Lifecycle: Active Supply Risk Score and Supply Risk Trend are available on Pro and Enterprise. Watchlist (Pro)

Country of origin: MYRoHS Compliant

Farnell(1/3)

Supply Risk Summary

Supply chain risk trend is available on Pro and Enterprise plans.

Multi-source

Active

Confirmed Stock

779,445

Availability is incomplete; unknown stock and unidentified marketplace inventory are excluded.

3 of 3 suppliers stocked

Best Unit Price

—

Availability

3of 3 suppliers

Fastest delivery: 133 days

Supplier	Supplier Part Number	Stock	Delivery	Factory Lead	MOQ	Packaging	Status
MyArrow	ULN2803A	665,412	—	—	Minimum order quantity 1Order multiple 20	TUBE	In Stock
Farnell	1094428	73,926	133 days	—	Minimum order quantity 1	—	In Stock
Bürklin	50S2700	40,107	—	—	Minimum order quantity 1	piece(s)	In Stock

Supplier	Description	RoHS	Life Cycle	SVHC	Category	Country	Tariff Code	Packaging
Bürklin 50S2700	Bipolar junction transistor, NPN, 500 mA, 50 V, THT, PDIP-18, ULN2803A	Yes	Active	Yes	Bipolar Transistors	MY	85423390 (EU CN)	piece(s)
Farnell 1094428	STMICROELECTRONICS - ULN2803A - Darlington-Transistor, Darlington, NPN, 50 V, 2.25 W, 500 mA, DIP, 18 Pin(s)	Yes	Active	No SVHC (25-Jun-2025)	—	SG	85423990 (EU CN)	—
MyArrow ULN2803A	Trans Darlington NPN 50V 0.5A 2250mW 18-Pin PDIP Tube	Yes	Active	—	SP1	MY	—	TUBE

AssemblyTHT

Collector current500A

EnclosurePDIP-18

max. operating temperature150°C

max.voltage between collector and emitter Vceo50V

Min DC gain1000 mA

min. operating temperature-55°C

Rated current500A

Saturation voltage1.3V

SeriesULN

VersionNPN