Is there a pin-compatible replacement for LESD5Z5.0CT1G(UMW)?

Yes, several candidates like PESD5V0V1BB-N, TPPESD5V0S1BB, and TPESD5B5.0ST1G share the same SOD-523 package and 2-pin layout. However, they are not verified drop-in replacements. You must review their electrical parameters, such as peak power and capacitance, to ensure they are suitable for your specific circuit.

What risks should I check before replacing LESD5Z5.0CT1G(UMW)?

Before replacing, you must verify four key parameters: 1) Polarity: Ensure the replacement is bidirectional. 2) Peak Pulse Power: The replacement should handle at least 75W. 3) Clamping Voltage: A lower or equal clamping voltage is preferred. 4) Junction Capacitance: Ensure the replacement's capacitance is acceptable for your signal speed.

LESD5Z5.0CT1G(UMW) Alternatives, Datasheet & Cross Reference | UMW

LESD5Z5.0CT1G(UMW) is a 5V bidirectional TVS diode in a SOD-523 package for ESD protection. While no verified drop-in replacement is listed, several strong functional alternatives with the same package and similar electrical characteristics are available for evaluation.

AI replacement insight

Electrical riskhigh

Using a part with the wrong polarity (unidirectional) will fail. Mismatched power or clamping voltage can lead to circuit damage.

Package risklow

Multiple candidates share the same SOD-523 package, making physical replacement straightforward.

Sourcing risklow

5V bidirectional TVS diodes in SOD-523 are a common component type with many potential cross-vendor options.

Can it be replaced directly?

No verified drop-in replacement exists. However, PESD5V0V1BB-N is a strong functional alternative in the same package that should be evaluated.

Best replacement path

PESD5V0V1BB-N is the strongest alternative, offering a higher power rating with closely matched electricals. It requires checking for tolerance of a minor capacitance increase.

Main risk

The primary risk is using a unidirectional diode instead of a bidirectional one. Secondary risks involve insufficient power handling or altered signal integrity from capacitance changes.

Recommended alternatives

Strong bidirectional alternative in the same package with higher power handling and similar key electricals.

View details

Alternative comparison matrix

Feature / factor	LESD5Z5.0CT1G(UMW)	PESD5V0V1BB-N	TPESD5B5.0ST1G	TPPESD5V0S1BB	Compatibility / risk
Package	SOD-523	SOD-523	SOD-523	SOD-523	SOD-523 — Same package and pin count.; TPESD5B5.0ST1G: Same package and pin count.; TPPESD5V0S1BB: Same package and pin count.
Polarity Or Type	Bidirectional (inferred)	Bidirectional	Bi-directional	Bi-directional	Bidirectional / Bi-directional — Polarity matches target.; TPESD5B5.0ST1G: Polarity matches target.; TPPESD5V0S1BB: Polarity matches target.
Voltage V	5.0V	5.0V	5.0V	5.0V	5.0V — Working voltage matches.; TPESD5B5.0ST1G: Working voltage matches.; TPPESD5V0S1BB: Working voltage matches.
Power W	75W	90W	~63W	~63W	90W / ~63W — Higher peak power handling.; TPESD5B5.0ST1G: Lower peak power (est. 9V7A).; TPPESD5V0S1BB: Lower peak power (est. 9V7A).
Clamping Voltage V	15V	15V	9V	9V	15V / 9V — Maximum clamping voltage matches.; TPESD5B5.0ST1G: Lower clamping voltage is better.; TPPESD5V0S1BB: Lower clamping voltage is better.
Capacitance Pf	15pF	18pF	15pF	15pF	18pF / 15pF — Slightly higher capacitance.; TPESD5B5.0ST1G: Junction capacitance matches.; TPPESD5V0S1BB: Junction capacitance matches.

Application & sourcing insights

Questions & answers

The best alternative identified is PESD5V0V1BB-N from Leiditech. It offers a higher power rating (90W vs 75W) in the same SOD-523 package with matching polarity and key voltages. A minor increase in capacitance (18pF vs 15pF) should be reviewed for your application.