What risks should I check before replacing TPESD0402G15V?

The main risk is capacitance mismatch. The target has an ultra-low capacitance of 0.05pF, critical for high-speed signals. A substitute with higher capacitance could degrade signal integrity. Also verify clamping voltage and leakage current.

TPESD0402G15V Alternatives, Datasheet & Cross Reference | TECH PUBLIC

TPESD0402G15V is an ultra-low capacitance (0.05pF) ESD suppressor in a 0402 package, designed for protecting high-speed data lines. Finding a suitable replacement requires matching capacitance and voltage precisely.

AI replacement insight

Electrical riskhigh

Capacitance must be closely matched to avoid signal degradation.

Package risklow

The 0402 package is highly standardized.

Can it be replaced directly?

Direct replacement for TPESD0402G15V should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

LXES15AAA1-133 is a strong candidate for a direct replacement, while AXGD10402KR offers a robust upgrade with a higher voltage rating.

Main risk

Capacitance mismatch is the primary risk. Using a part with higher capacitance can degrade signal integrity on high-speed lines.

Recommended alternatives

A strong pin-to-pin candidate matching package, voltage, and critical ultra-low capacitance.

View details

Alternative comparison matrix

Feature / factor	TPESD0402G15V	LXES15AAA1-133	AXGD10402KR	Compatibility / risk
Package	0402	0402	0402	0402 — Form and fit match.; AXGD10402KR: Form and fit match.
Voltage	15.0V	15.0V	24.0V	15.0V / 24.0V — Operating voltage matches.; AXGD10402KR: Higher voltage rating provides more margin.
Capacitance	0.05pF	0.05pF	0.04pF	0.05pF / 0.04pF — Ultra-low capacitance matches, suitable for high-speed lines.; AXGD10402KR: Slightly lower capacitance is better for high-speed signals.
Current	10nA	10nA	-	10nA — Leakage current matches.
Polarity	Bi-directional (inferred)	Bi-directional	-	Bi-directional — Both are bi-directional suppressors.
Qualification	N/A	-	AEC-Q200	AEC-Q200 — Automotive qualification indicates higher robustness.

Application & sourcing insights

Questions & answers

Verified drop-in options for TPESD0402G15V are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.