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onsemi P6SMB91CAT3 — Circuit Protection

P6SMB91CAT3 onsemi TVS Diode – Obsolete, AEC-Q101, 600W

MPNP6SMB91CAT3
Obsolete

onsemi P6SMB91CAT3, bidirectional Zener TVS, 600 W peak pulse power, 77.8 V reverse standoff, 125 V clamping, AEC-Q101 qualified, DO-214AA SMB, Obsolete

$0.4600Ref. price · indicative, final on quote
onsemi P6SMB91CAT3 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

P6SMB91CAT3 specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101
MountingSurface Mount
Voltage - breakdown86.5V
Voltage - clamping (Max) @ ipp125V
Voltage - reverse standoff77.8V
Current - peak pulse (10/1000μs)4.8A
Power - peak pulse600W
Power line protectionNo
Capacitance @ frequency120pF @ 1MHz
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-214AA, SMB
Bidirectional channels1

Product details

Automotive-grade bidirectional TVS – now obsolete

The onsemi P6SMB91CAT3 is marked as Obsolete.

Peak pulse power and clamping – 600 W at 4.8 A

The 600 W peak pulse power is the energy-absorption ceiling for a single 10/1000 µs transient. Capacitance is 120 pF at 1 MHz, which loads the signal line – relevant for high-frequency or fast-switching circuits where added capacitance may degrade edge rates.

Package and mounting – DO-214AA SMB

Surface-mount package DO-214AA (SMB), supplied in Tape & Reel. The SMB footprint is common across the P6SMB series, so a board layout designed for the P6SMB91A or similar SMB-packaged TVS accepts this part without modification.

Frequently asked questions

Does P6SMB91CAT3 meet AEC-Q101 automotive standards?

Yes, the series designation is Automotive, AEC-Q101.

What is the difference between P6SMB91CAT3 and P6SMB91A?

The P6SMB91CAT3 is a bidirectional TVS (1 bidirectional channel) with a 77.8 V reverse standoff and 125 V clamping. The P6SMB91A is the unidirectional version of the same voltage family. Both share the same DO-214AA SMB package and 600 W peak pulse rating. The 'C' in the suffix indicates bidirectional; 'A' indicates unidirectional.

Where can I buy P6SMB91CAT3?

The P6SMB91CAT3 is obsolete, so it is not stocked in OEM distribution. It can be sourced through independent surplus channels; quantities are lot-specific and confirmed at RFQ. Submit an RFQ to check current availability and pricing.