Is there a pin-compatible replacement for BAT54H,115?

While several parts like BAT46WH,115 share the same SOD123F package, none are true pin-to-pin replacements due to critical electrical differences. The forward voltage or capacitance of all candidates differ significantly from the target.

What risks should I check before replacing BAT54H,115?

The main risks are electrical. Check for higher forward voltage (VF), which increases power dissipation, and higher capacitance (Cd), which can slow down or disrupt high-speed switching circuits. Also, verify automotive (AEC-Q101) qualification if required.

BAT54H,115 Alternatives, Datasheet & Cross Reference | Nexperia USA Inc.

Finding a substitute for the Nexperia BAT54H,115 Schottky diode requires careful review of forward voltage (VF) and capacitance (Cd). While several parts share the SOD123F package, key electrical parameters often differ, impacting performance in high-speed applications.

AI replacement insight

Electrical riskhigh

Candidates have higher forward voltage or capacitance, impacting performance.

Package risklow

Most candidates use the same SOD123F package, but one has a different footprint.

Can it be replaced directly?

No direct drop-in replacement was found. All reviewed candidates have significant parametric differences, primarily higher forward voltage or much higher capacitance.

Best replacement path

Use BAT46WH,115 if the circuit can tolerate a higher forward voltage drop. Otherwise, a new component search focusing on low VF and low capacitance is needed.

Main risk

Electrical incompatibility, specifically higher forward voltage (causing increased power loss) and higher capacitance (slowing down switching speed), which can affect circuit performance and efficiency.

Recommended alternatives

A parametric alternative in the same package with higher voltage/current ratings but also higher forward voltage.

View details

Alternative comparison matrix

Feature / factor	BAT54H,115	BAT46WH,115	PMEG4010CEH,115	PMEG4010EH,115	Compatibility / risk
Package	SOD123F	SOD123F	SOD123F	SOD123F	SOD123F — Package matches.; PMEG4010CEH,115: Package matches.; PMEG4010EH,115: Package matches.
Voltage	30V	100V	-	-	100V — Candidate has higher voltage rating.
Current	200mA	250mA	1A	1A	250mA / 1A — Candidate has higher current rating.; PMEG4010CEH,115: Candidate has much higher current rating.; PMEG4010EH,115: Candidate has much higher current rating.
Forward Voltage	400mV @ 10mA	850mV @ 250mA	-	-	850mV @ 250mA — Significantly higher forward voltage, will increase power loss.
Application	AEC-Q101	AEC-Q101	Not AEC-Q101	Not AEC-Q101	AEC-Q101 / Not AEC-Q101 — Both are automotive qualified.; PMEG4010CEH,115: Candidate is not automotive qualified.; PMEG4010EH,115: Candidate is not automotive qualified.
Capacitance	10pF	-	~50pF	43pF	~50pF / 43pF — Much higher capacitance, unsuitable for high-speed switching.; PMEG4010EH,115: Much higher capacitance, unsuitable for high-speed switching.

Application & sourcing insights

Questions & answers

The best potential alternative is BAT46WH,115, which has the same package and higher voltage/current ratings. However, you must verify if your circuit can tolerate its significantly higher forward voltage (VF).