Is there a pin-compatible replacement for PESD0201V05?

Several candidates like SP0201B-ULC-01UTG and TPESD0201G05V use the same 0201 package and are likely pin-compatible. However, electrical differences in polarity, capacitance, and clamping voltage require careful engineering review before direct replacement.

What risks should I check before replacing PESD0201V05?

Key risks include: 1) Polarity mismatch (unidirectional vs. bidirectional), 2) Higher capacitance impacting high-speed signal integrity, and 3) Different clamping voltage or ESD ratings affecting circuit protection levels.

PESD0201V05 Alternatives, Datasheet & Cross Reference | DOWOSEMI

PESD0201V05 is an ultra-low capacitance (0.05pF) TVS diode in a 0201 package for 5V high-speed data lines. Finding a replacement requires matching capacitance, polarity, and clamping voltage.

AI replacement insight

Electrical riskmedium

Capacitance, polarity, and clamping voltage differences require review.

Package risklow

All viable candidates use the same 0201 package.

Sourcing risklow

Alternatives are available from major manufacturers like Littelfuse and onsemi.

Can it be replaced directly?

No verified direct drop-in replacement exists. SP0201B-ULC-01UTG is a strong candidate but requires review of its different capacitance and ESD ratings.

Best replacement path

SP0201B-ULC-01UTG is a strong functional alternate, while TPESD0201G05V is a close parametric match pending polarity verification.

Main risk

The primary risk is increased capacitance from alternatives, which can degrade high-speed signal integrity. Polarity mismatch is also a critical failure risk.

Recommended alternatives

Strong functional alternative with superior clamping voltage, but has slightly higher capacitance.

View details

Alternative comparison matrix

Feature / factor	PESD0201V05	SP0201B-ULC-01UTG	TPESD0201G05V	Compatibility / risk
Package	0201	0201 DFN	0201	0201 DFN — Package matches.; TPESD0201G05V: Package matches.
Voltage	5.0V	7.0V	5.0V	7.0V / 5.0V — Higher working voltage is safe.; TPESD0201G05V: Operating voltage matches.
Capacitance	0.05pF	0.13pF	0.05pF	0.13pF / 0.05pF — Capacitance is higher but still in ultra-low range.; TPESD0201G05V: Capacitance matches target's ultra-low value.
Clamping Voltage	35V	10.0V	40V	10.0V / 40V — Significantly lower clamping voltage offers better protection.; TPESD0201G05V: Slightly higher clamping voltage provides less protection.
Polarity	Unknown	Bidirectional	Unknown	Bidirectional / Unknown — Polarity is bidirectional; check application requirement.; TPESD0201G05V: Polarity (uni/bi-directional) is unknown and must be verified.
Esd Rating	±25kV	±20kV	-	±20kV — Lower air ESD rating.

Application & sourcing insights

Questions & answers

SP0201B-ULC-01UTG is a strong functional alternative with better clamping voltage, though its capacitance (0.13pF) and ESD rating (±20kV) differ. TPESD0201G05V is parametrically closer but requires verification of its polarity.