Is there a pin-compatible replacement for PGB1010603MR?

Yes, PGB1010603NR is a pin-compatible packaging variant. Other 0603 ESD suppressors may fit the PCB footprint but have different electrical characteristics that require engineering review.

What risks should I check before replacing PGB1010603MR?

The primary risk is increased capacitance. The PGB1010603MR has an ultra-low capacitance of 0.06pF, critical for high-speed signals. Most alternatives have higher capacitance which can degrade signal integrity. Always verify the voltage rating is at least 24V.

PGB1010603MR Alternatives, Datasheet & Cross Reference | Littelfuse

PGB1010603MR is an ultra-low capacitance (0.06pF) ESD suppressor from Littelfuse. The best alternative is its packaging variant, PGB1010603NR. Other alternatives exist but require careful review of their higher capacitance.

AI replacement insight

Electrical riskhigh

Most alternatives have significantly higher capacitance, impacting signal integrity.

Package risklow

All reviewed candidates use the same 0603 package.

Sourcing risklow

A direct packaging variant and several parametric alternatives are available.

Can it be replaced directly?

Yes, PGB1010603NR is a direct replacement, differing only in packaging (full reel vs. cut tape).

Best replacement path

Use the packaging variant PGB1010603NR for a direct, low-risk replacement.

Main risk

Capacitance mismatch when considering alternatives from other product families or manufacturers.

Recommended alternatives

Identical electrical part, differs only by packaging (full reel vs. cut tape).

View details

Alternative comparison matrix

Feature / factor	PGB1010603MR	PGB1010603NR	PESD0603-240	Compatibility / risk
Application	PGB1010603MR	PGB1010603NR	-	PGB1010603NR — Packaging variant (full reel vs cut tape).
Package	0603	0603	-	0603 — Identical package and pin count.
Voltage	24V	24V	-	24V — Rated voltage is identical.
Capacitance	0.06 pF	0.06 pF	-	0.25 pF — Capacitance is ~4x higher.
Temperature	-65°C to +125°C	-	-55°C to +125°C	-55°C to +125°C — Slightly narrower operating range.

Application & sourcing insights

Questions & answers

The best alternative is PGB1010603NR, which is the same component from Littelfuse supplied on a full reel instead of cut tape. It is electrically identical.