Is there a pin-compatible replacement for PGB1010402KR?

LXES15AAA1-133 and PESD0402-140 share the same 0402 package and are pin-compatible in form. However, neither is a guaranteed drop-in replacement without reviewing electrical parameter differences, especially capacitance.

What risks should I check before replacing PGB1010402KR?

Before replacing, you must check three key risks: 1) Capacitance mismatch, as higher values can degrade high-speed signals. 2) Package mismatch, as parts like PGB1010603NR require a PCB change. 3) Leakage current, as higher leakage can affect sensitive analog or low-power circuits.

PGB1010402KR Alternatives, Datasheet & Cross Reference | Littelfuse

Q: What is the best alternative to PGB1010402KR?

The best alternative appears to be LXES15AAA1-133 due to its matching 0402 package, 15V rating, and very close 0.05pF capacitance. However, as a cross-vendor part, it requires engineering validation before production use.

PGB1010402KR is an ultra-low capacitance ESD suppressor for high-speed data lines. While no verified drop-in replacement exists, several functional and parametric alternatives are available for review.

AI replacement insight

Electrical riskmedium

Candidates may have higher capacitance or leakage current.

Package riskhigh

Some functional alternatives require a PCB layout change due to a different package size.

Sourcing risklow

Alternatives from multiple vendors are available.

Can it be replaced directly?

No verified direct drop-in replacement has been identified. LXES15AAA1-133 is a strong candidate but requires engineering review for its cross-vendor origin and slightly higher leakage current.

Best replacement path

LXES15AAA1-133 offers the closest parametric match in the same package but requires validation as a cross-vendor part.

Main risk

The primary risk when substituting is an increase in capacitance, which can degrade high-speed signal integrity.

Recommended alternatives

Strong parametric match in the same 0402 package with a higher voltage rating.

View details

Alternative comparison matrix

Feature / factor	PGB1010402KR	LXES15AAA1-133	PESD0402-140	Compatibility / risk
Package	0402	0402	-	0402 — Same 0402 package.
Voltage	12V	15V	-	14V — Higher voltage rating provides more margin.
Capacitance	0.04pF	0.05pF	-	0.25pF — Significantly higher capacitance may affect signal integrity.
Leakage	<1nA	10nA	-	<0.1uA — Much higher leakage current.

Application & sourcing insights

Questions & answers