Is there a pin-compatible replacement for LESD9D5.0CT5G?

Yes, several TVS diodes like WE05D9-B and PDFB050150-SOD923 use the same SOD-923 package and are pin-compatible. However, their electrical parameters, especially peak power, differ and must be reviewed.

What risks should I check before replacing LESD9D5.0CT5G?

The primary risk is the lower Peak Pulse Power (Ppp) rating of most alternatives. The target is 150W, while many substitutes are 80W or less. This could lead to device failure if your circuit experiences transients exceeding the substitute's rating. Also check capacitance if used on high-speed lines.

LESD9D5.0CT5G Alternatives, Datasheet & Cross Reference | LRC

LESD9D5.0CT5G is a 5V bidirectional TVS diode in a compact SOD-923 package, offering 150W peak pulse power protection. It is designed for ESD protection in space-constrained portable electronics.

AI replacement insight

Electrical riskhigh

All candidates have significantly lower peak pulse power ratings (60-80W vs 150W).

Package risklow

All candidates share the same SOD-923 package and are pin-compatible.

Can it be replaced directly?

No direct 1:1 replacement with identical key parameters has been identified. All available candidates have a lower peak pulse power rating, which constitutes a downgrade risk.

Best replacement path

Consider WE05D9-B or PDFB050150-SOD923 as form-fit alternatives, but they are downgrades in power handling (80W vs 150W). Evaluate if the lower power rating is acceptable for your design.

Main risk

Reduced transient power protection due to lower Peak Pulse Power ratings in all identified alternatives.

Recommended alternatives

A pin-compatible 5V TVS diode in a SOD-923 package with matching capacitance but a lower 80W power rating.

View details

Alternative comparison matrix

Feature / factor	LESD9D5.0CT5G	PDFB050150-SOD923	WE05D9-B	TPESD9B5.0ST5G	Compatibility / risk
Package	SOD-923	SOD-923	SOD-923	SOD-923	SOD-923 — Form factor matches.; WE05D9-B: Form factor matches.; TPESD9B5.0ST5G: Form factor matches.
Voltage	5.0V	5.0V	5.0V	5.0V	5.0V — Working voltage matches.; WE05D9-B: Working voltage matches.; TPESD9B5.0ST5G: Working voltage matches.
Power	150W	80W	80W	60W	80W / 60W — Significantly lower peak power handling.; WE05D9-B: Significantly lower peak power handling.; TPESD9B5.0ST5G: Severely lower peak power handling.
Capacitance	15pF	15pF	8pF	15pF	15pF / 8pF — Capacitance matches.; WE05D9-B: Lower capacitance may be beneficial for high-speed lines.; TPESD9B5.0ST5G: Capacitance matches.
Polarity Or Type	Bidirectional	-	Bidirectional	-	Bidirectional — Polarity matches.

Application & sourcing insights

Questions & answers

While no direct drop-in replacements with the same 150W power rating are listed, parts like WAYON's WE05D9-B offer the same package and voltage but with lower power handling. Always verify power requirements for your application.