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onsemi 1.5KE43CARL4 — Circuit Protection

1.5KE43CARL4 onsemi Obsolete TVS Diode – Replacement &

MPN1.5KE43CARL4
Obsolete

onsemi 1.5KE43CARL4, Circuit Protection, Bulk package, Obsolete status

$0.0900Ref. price · indicative, final on quote
onsemi 1.5KE43CARL4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE43CARL4 specifications
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Series*
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Product details

What is the 1.5KE43CARL4 and why does it matter?

The 1.5KE43CARL4 is a TVS diode from onsemi in the Circuit Protection category. Its lifecycle status is Obsolete, meaning onsemi has discontinued production and no further manufacturing is planned.

Is the 1.5KE43CARL4 still available to buy?

The 1.5KE43CARL4 is marked Obsolete — onsemi has stopped production.

What is the replacement for the 1.5KE43CARL4?

The closely related 1.5KE43CA (also onsemi) is a common search term but is itself obsolete. For a pin-compatible alternative in the same Circuit Protection family, check the 1.5KE series from onsemi or equivalent TVS diodes from Littelfuse, Vishay, or STMicroelectronics — confirm the breakdown voltage, peak pulse power, and package before substituting.

Frequently asked questions

What is the replacement for 1.5KE43CARL4?

No official replacement is listed. The 1.5KE43CA is a similar part but also obsolete. For a new design, consider a current-production TVS diode from the onsemi 1.5KE series or an equivalent from another manufacturer, verifying the breakdown voltage and peak pulse power rating.

Is 1.5KE43CARL4 obsolete?

Yes, onsemi has marked the 1.5KE43CARL4 as Obsolete. No further production is planned.