ProjectsPricingInsights

Best Alternatives to ULN2003A

Package: 16-SOIC (0.154", 3.90mm Width)UMWPower Distribution SwitchesSeries: -Package: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Voltage - Load: 50VVoltage - Supply (Vcc/Vdd): Not RequiredCurrent - Output (Max): 500mA

ULN2003A is a 7-channel Darlington sink driver. ULN2003 may be a same-family alternative, but pinout and temperature need review.

AI replacement insight

Electrical riskmedium

ratings match, temp missing

Package riskmedium

SOP vs SOP/DIP ambiguity

Firmware risklow

no firmware protocol

Sourcing risklow

candidate is Active

Can it be replaced directly?

No verified pin-compatible replacement is proven from the provided fields.

Best replacement path

Start with same-family ULN2003 in the same package, then verify pinout, temp, and footprint.

Main risk

Unverified pinout and temperature range.

Recommended alternatives

1
ULN2003 package
ULN2003

HX

Needs validationmedium risk

ULN2003 is a likely same-function driver array, pending FAE pinout review.

View details

Alternative comparison matrix

Feature / factorULN2003AULN2003Alt 2Alt 3Compatibility / risk
PackageSOP16/DIP16SOP-16SOP-16 — SMT variant only
Pinout16 pins16 pins16 pins — functions unverified
Voltage50V50V50V — same rating
Current500mA500mA500mA — per output
Temperature-40 to 105Cmissingmissing — must verify

Application & sourcing insights

Questions & answers

From the provided candidates, ULN2003 is the best same-function candidate, but it needs FAE review.