Is there a pin-compatible replacement for ULN2003ALDTR(XBLW)?

Many ULN2003 series parts from different manufacturers are designed to be pin-compatible. Candidates like ULN2003G-S16-R are likely pin-compatible, but datasheet verification of the pinout is essential for a drop-in replacement.

What risks should I check before replacing ULN2003ALDTR(XBLW)?

The main risks are pinout and subtle electrical differences. Ensure the substitute has the standard ULN2003 pinout for the SOP-16 package. Also, check for minor variations in input logic thresholds or saturation voltage.

ULN2003ALDTR(XBLW) Alternatives, Datasheet & Cross Reference | XBLW

ULN2003ALDTR(XBLW) is a popular 7-channel Darlington array in a SOP-16 package. Finding a substitute involves matching the 50V/500mA rating and standard ULN2003 pinout.

AI replacement insight

Electrical risklow

Key ratings are standard across the family.

Package risklow

SOP-16 is a standard package.

Firmware risklow

Not applicable for this type of component.

Sourcing risklow

ULN2003 is a multi-source commodity part.

Can it be replaced directly?

Yes, direct replacements from the ULN2003 family are widely available. Pinout verification is the key step.

Best replacement path

Cross-vendor ULN2003 family parts.

Main risk

Pinout incompatibility despite identical package and part number root.

Recommended alternatives

A 7-channel Darlington array from UTC in the same SOP-16 package with identical voltage and current ratings.

View details

Alternative comparison matrix

Feature / factor	ULN2003ALDTR(XBLW)	ULN2003G-S16-R	ULN2003	Compatibility / risk
Function	Darlington Array	Darlington Array	Darlington Array	Darlington Array — Both are 7-channel Darlington sink drivers.; ULN2003: Both are 7-channel Darlington sink drivers.
Package	SOP-16	SOP-16	SOP-16	SOP-16 — Identical package type and pin count.; ULN2003: Package matches, though some datasheets list multiple options.
Voltage	50 V	50 V	50 V	50 V — Collector-Emitter voltage matches.; ULN2003: Collector-Emitter voltage matches.
Current	500 mA	500 mA	500 mA	500 mA — Output current per channel matches.; ULN2003: Output current per channel matches.
Temperature	-40°C to 85°C	-40°C to +85°C	-	-40°C to +85°C — Operating temperature range matches.

Application & sourcing insights

Questions & answers

Parts from the ULN2003 family like UTC's ULN2003G-S16-R or GR's ULN2003 are strong functional alternatives, offering the same package and key ratings. Pinout verification is recommended.