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onsemi P6SMB56AT3 — Circuit Protection

P6SMB56AT3 onsemi Automotive TVS – Obsolete, AEC-Q101, 600W

MPNP6SMB56AT3
Obsolete

onsemi P6SMB56AT3, Automotive AEC-Q101 Zener TVS, 600W peak pulse power, 47.8V reverse standoff, 77V clamp at 7.8A, DO-214AA SMB package

$0.6500Ref. price · indicative, final on quote
onsemi P6SMB56AT3 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

P6SMB56AT3 specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101
MountingSurface Mount
Voltage - breakdown53.2V
Voltage - clamping (Max) @ ipp77V
Voltage - reverse standoff47.8V
Current - peak pulse (10/1000μs)7.8A
Power - peak pulse600W
Power line protectionNo
Capacitance @ frequency365pF @ 1MHz
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsAutomotive
CaseDO-214AA, SMB
Unidirectional channels1

Product details

Automotive-grade TVS for 48 V rail clamping

It carries AEC-Q101 automotive qualification, making it suitable for 48 V DC power rails, sensor supply lines, and battery-protection circuits in passenger-vehicle and commercial-vehicle electronics.

Minimum breakdown voltage is 53.2 V, with a typical standoff of 47.8 V — the margin between standoff and breakdown is 5.4 V, which gives the protected line headroom during normal operation while still triggering clamping before damage occurs. Capacitance at 1 MHz is 365 pF, which is low enough for moderate-speed signal lines but too high for high-frequency data buses like CAN FD or 100BASE-T1 without additional filtering.

Confirm the package (DO-214AA SMB) and polarity (unidirectional) match your PCB layout before committing.

Frequently asked questions

How can I order P6SMB56AT3 or check availability?

The P6SMB56AT3 is obsolete per onsemi. We source it through independent distribution channels. Submit an RFQ with your target quantity and delivery window; we will confirm current pricing and lead time at quote.

Is P6SMB56AT3 AEC-Q101 qualified?

Yes, the series is listed as Automotive, AEC-Q101. This means the part is qualified to the AEC-Q101 stress test sequence for discrete semiconductors, covering temperature cycling, high-temperature reverse bias, and moisture resistance — suitable for under-hood and cabin automotive environments within the -65°C to 150°C junction temperature range.