Is there a pin-compatible replacement for BAV70WT1G?

Yes, several parts like Nexperia's BAV70W,115 share the SOT-323 package and common cathode pinout. However, they are not direct drop-in replacements due to parametric differences like current rating, requiring review.

What risks should I check before replacing BAV70WT1G?

Verify three key areas: 1) The substitute's voltage and current ratings meet or exceed the original's 100V/200mA. 2) The internal configuration is 'common cathode', not series or common anode. 3) The package is SOT-323 for layout compatibility.

BAV70WT1G Alternatives, Datasheet & Cross Reference | onsemi

BAV70WT1G is a 100V, 200mA dual common cathode switching diode in a SOT-323 package. When seeking replacements, it's crucial to match the package, pinout, and key electrical ratings like voltage and current.

AI replacement insight

Package risklow

SOT-323 is a common package with many options.

Electrical riskmedium

Candidates often have lower current or voltage ratings. Configuration must be verified as 'common cathode'.

Can it be replaced directly?

No direct drop-in replacements were found. Nexperia's BAV70W,115 is a close match but has a lower current rating (175mA), requiring engineering review.

Best replacement path

Use a parametric search for SOT-323 common cathode diodes with V_R >= 100V and I_F >= 200mA.

Main risk

The main risk is using a substitute with a lower current or voltage rating, or an incorrect internal diode configuration (e.g., series instead of common cathode).

Recommended alternatives

A parametric alternative in the same SOT-323 package with matched voltage but lower current rating.

View details

Alternative comparison matrix

Feature / factor	BAV70WT1G	BAV70W,115	BAV70W	Compatibility / risk
Package	SOT-323	SOT-323 (SC-70)	SOT-323	SOT-323 (SC-70) — Package is form-factor compatible.; BAV70W: Package is form-factor compatible.
Pinout	Dual Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode — Pin configuration is functionally identical.; BAV70W: Pin configuration is functionally identical.
Voltage	100V	100V	75V	100V / 75V — Reverse voltage rating is identical.; BAV70W: Candidate has a lower reverse voltage rating.
Current	200mA	175mA	175mA	175mA — Candidate has a lower forward current rating.; BAV70W: Candidate has a lower forward current rating.
Speed	6ns	4ns	-	4ns — Candidate has a faster reverse recovery time.

Application & sourcing insights

Questions & answers

Nexperia's BAV70W,115 is a strong candidate in the same package with matched voltage, but its current rating is lower at 175mA. This requires verification for your specific application.