Is there a pin-compatible replacement for PESD2USB3UV-TR?

No pin-compatible replacement that also matches the critical low-capacitance electrical characteristic was found. While several parts share the SOT-23 package and pinout, their high capacitance makes them unsuitable for the target's intended high-speed applications.

What risks should I check before replacing PESD2USB3UV-TR?

The main risk is signal integrity failure due to capacitance mismatch. The target has ultra-low capacitance ( 10pF) will likely distort the signal, causing data errors. Always verify the capacitance and test in-circuit.

PESD2USB3UV-TR Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

Q: What is the best alternative to PESD2USB3UV-TR?

No direct drop-in replacement was identified. The closest candidate, SM05T1G, has higher capacitance and a lower power rating, making it a risky choice that requires engineering validation for your specific application.

PESD2USB3UV-TR is a 2-line, uni-directional TVS diode in a SOT-23 package, optimized for protecting high-speed interfaces like USB 3.0. Its key feature is ultra-low capacitance (<1.3pF) to ensure signal integrity.

AI replacement insight

Electrical riskhigh

Capacitance mismatch is the main electrical risk, impacting signal integrity on high-speed lines.

Package risklow

All candidates share the same SOT-23 package, so mechanical fit is not a concern.

Can it be replaced directly?

There are no direct, drop-in replacements for PESD2USB3UV-TR among the candidates reviewed. All viable options have significantly higher capacitance, which poses a risk to high-speed signal integrity.

Best replacement path

No direct drop-in replacement was found. SM05T1G is the closest parametrically but requires careful engineering review due to higher capacitance and lower power rating. It is not recommended for USB 3.0 without signal integrity validation.

Main risk

The primary risk is signal integrity degradation. The target's ultra-low capacitance (<1.3pF) is critical for high-speed data lines like USB 3.0. All candidates have much higher capacitance (35-220pF), which can distort the signal and cause system failure.

Recommended alternatives

A parametric alternative with similar voltage but requires review of its lower power rating and higher capacitance.

View details

Alternative comparison matrix

Feature / factor	PESD2USB3UV-TR	SM05T1G	GSOT05C	SET23A05L02	Compatibility / risk
Package	SOT-23	SOT-23	SOT-23	SOT-23	SOT-23 — Package matches.; GSOT05C: Package matches.; SET23A05L02: Package matches.
Polarity Or Type	Uni-directional	Uni-directional	Uni-directional	Uni-directional	Uni-directional — Polarity matches based on ES data.; GSOT05C: Polarity matches.; SET23A05L02: Polarity matches based on ES data.
Voltage	5.0V	5.0V	5.0V	5.0V	5.0V — Operating voltage matches.; GSOT05C: Operating voltage matches.; SET23A05L02: Operating voltage matches.
Power	350W	300W	350W	300W	300W / 350W — Slightly lower peak pulse power rating.; GSOT05C: Peak pulse power matches.; SET23A05L02: Slightly lower peak pulse power rating.
Capacitance	<1.3pF	~35pF	~150pF	~220pF	~35pF / ~150pF / ~220pF — Significantly higher capacitance, likely unsuitable for USB3.; GSOT05C: Extremely high capacitance, will degrade high-speed signals.; SET23A05L02: Extremely high capacitance, will degrade high-speed signals.

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