Is there a pin-compatible replacement for BAT46W?

Currently, no pin-compatible (pin-to-pin) replacement for the BAT46W in its SOD-123 package has been verified. Candidates with similar electrical specifications exist in different packages like SOD-323 or SMA.

What risks should I check before replacing BAT46W?

Key risks include package mismatch (requiring PCB redesign), differences in power dissipation capability, and variations in forward voltage (Vf) and reverse leakage current, which can affect circuit efficiency and performance.

BAT46W Alternatives, Datasheet & Cross Reference | diotec-semiconductor-ag

BAT46W is a 100V, 150mA Schottky diode in a compact SOD-123 package, used for high-speed switching and rectification. Finding a direct drop-in replacement requires matching the package, electrical ratings, and low forward voltage characteristic.

AI replacement insight

Package riskhigh

No candidates match the SOD-123 footprint, requiring PCB redesign.

Electrical riskmedium

Some candidates have different power ratings or forward voltage curves that need verification.

Sourcing risklow

The target part is active and multiple functional alternatives exist.

Can it be replaced directly?

No direct, drop-in replacement for BAT46W has been found. All potential candidates require design modifications.

Best replacement path

Functional alternatives in different packages.

Main risk

Package incompatibility is the primary risk, preventing a direct drop-in replacement.

Recommended alternatives

A functionally similar 100V Schottky diode with higher current rating (1A), but in a larger SMA package.

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Alternative comparison matrix

Feature / factor	BAT46W	SS110	SS210	BAT46WS	Compatibility / risk
Package	SOD-123	DO-214AC (SMA)	-	-	SOD-323 — Candidate package is smaller and not footprint compatible.
Polarity Or Type	Schottky	Schottky	-	-	Schottky — matched
Voltage	100V	100V	-	-	100V — matched
Current	0.15A	1A	-	-	0.15A — matched
Power	0.5W	-	-	0.2W	0.2W — Lower power rating requires thermal analysis.

Application & sourcing insights

Questions & answers

No direct drop-in replacements have been identified. Alternatives like BAT46WS exist but come in different packages (e.g., SOD-323) or have different power ratings, requiring board layout changes and design review.