What risks should I check before replacing ESD112-B1-02EL?

The main risks are minor differences in electrical parameters. Check that the slightly lower peak power rating (e.g., 100W vs 110W) is sufficient for your design and that the slightly higher capacitance (e.g., 0.3pF vs 0.22pF) does not degrade high-speed signal integrity.

ESD112-B1-02EL Alternatives, Datasheet & Cross Reference | Leiditech

ESD112-B1-02EL is an ultra-low capacitance (0.22pF) bidirectional TVS diode from Leiditech. It is designed in a compact DFN1006 package to protect high-speed data lines like USB and HDMI from ESD events.

AI replacement insight

Electrical risklow

Key parameters are very close, but minor differences in power and capacitance exist.

Package risklow

Uses the same standard DFN1006 package, making it a likely form-fit match.

Sourcing riskmedium

Availability and lead time of alternatives should be confirmed with distributors.

Can it be replaced directly?

Direct replacement for ESD112-B1-02EL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

PESDMC2FD5VB from the same manufacturer, Leiditech, is the most promising replacement path, offering very similar characteristics.

Main risk

Slightly higher junction capacitance (0.3pF vs 0.22pF) may impact signal integrity on multi-gigabit data lines. A minor reduction in peak power handling also exists.

Recommended alternatives

A very close alternative from the same manufacturer in the same package, with minor differences in power and capacitance.

View details

Alternative comparison matrix

Feature / factor	ESD112-B1-02EL	PESDMC2FD5VB	SE10F10B5.0MA	ESD5311N	Compatibility / risk
Package	DFN1006	DFN1006	DFN1006	DFN1006	DFN1006 — Same package family.; SE10F10B5.0MA: Same package family.; ESD5311N: Same package family.
Voltage	5.0V	5.0V	5.0V	5.0V	5.0V — Same reverse standoff voltage.; SE10F10B5.0MA: Same reverse standoff voltage.; ESD5311N: Same reverse standoff voltage.
Polarity Or Type	Bidirectional	Bidirectional	-	-	Bidirectional — Polarity matches.
Power	110W	100W	100W	88W	100W / 88W — Slightly lower peak pulse power.; SE10F10B5.0MA: Slightly lower peak pulse power.; ESD5311N: Significantly lower peak pulse power.
Capacitance	0.22pF	0.3pF	0.3pF	0.3pF	0.3pF — Slightly higher capacitance, may affect signal integrity.; SE10F10B5.0MA: Slightly higher capacitance.; ESD5311N: Slightly higher capacitance.

Application & sourcing insights

Questions & answers

Verified drop-in options for ESD112-B1-02EL 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.