Is there a pin-compatible replacement for PESDHC2FD4V5BH?

Yes, several parts like PESDNC2FD5VBH share the same DFN1006-2L package and pinout. However, they are not electrically equivalent, primarily differing in peak power rating, and must be considered a downgrade.

What risks should I check before replacing PESDHC2FD4V5BH?

The primary risk is insufficient transient protection. The target handles 500W peak pulse power, while most similar-package alternatives handle less than 100W. Using a lower-rated part may lead to device failure in a surge event.

PESDHC2FD4V5BH Alternatives, Datasheet & Cross Reference | Prisemi

PESDHC2FD4V5BH is a high-power (500W) bi-directional TVS diode from Prisemi in a DFN1006-2L package, designed to protect 4.5V lines from significant transient events.

AI replacement insight

Electrical riskhigh

Using a lower-rated part will likely lead to failure during a surge event.

Package risklow

The DFN1006-2L package is common and candidates match the form factor.

Sourcing riskmedium

Finding parts with this high power rating in such a small package may be difficult.

Can it be replaced directly?

No direct, electrically equivalent replacement was identified. All reviewed candidates have significantly lower power ratings.

Best replacement path

Search for a bi-directional TVS in a DFN1006-2L package with Vrwm ~4.5V-5V and Ppp >= 500W.

Main risk

Peak Pulse Power (Ppp) mismatch. Candidates are rated for 80-82% less power than the target.

Recommended alternatives

Form-fit compatible but with a much lower power rating that requires careful engineering review before use.

View details

Alternative comparison matrix

Feature / factor	PESDHC2FD4V5BH	H5VL10BC	PESDNC2FD5VBH	Compatibility / risk
Package	DFN1006-2L	DFN1006-2L	DFN1006-2L	DFN1006-2L — Form and fit are compatible.; PESDNC2FD5VBH: Form and fit are compatible.
Polarity Or Type	Bi-directional	Bi-directional	Bi-directional	Bi-directional — Both are bi-directional.; PESDNC2FD5VBH: Both are bi-directional.
Voltage V	4.5V	5.0V	5.0V	5.0V — Slightly higher working voltage is acceptable.; PESDNC2FD5VBH: Slightly higher working voltage is acceptable.
Power W	500W	95W	100W	95W / 100W — Candidate power rating is ~81% lower. High risk.; PESDNC2FD5VBH: Candidate power rating is 80% lower. High risk.
Capacitance	80pF	12pF	35pF	12pF / 35pF — Significantly lower capacitance may affect circuit tuning.; PESDNC2FD5VBH: Lower capacitance may affect circuit tuning.

Application & sourcing insights

Questions & answers

No direct drop-in replacement with an equivalent power rating was found. Candidates like PESDNC2FD5VBH exist but have much lower power handling (100W vs 500W) and require careful engineering review before use.