Skip to main content
Log in
onsemi P6SMB22AT3 — Circuit Protection

P6SMB22AT3 Zener TVS Diode – 600W, AEC-Q101, DO-214AA (SMB)

MPNP6SMB22AT3
Obsolete

onsemi P6SMB22AT3, Zener TVS diode, 600W peak pulse power, 18.8V reverse standoff, AEC-Q101 qualified, DO-214AA (SMB) package

$0.6200Ref. price · indicative, final on quote
onsemi P6SMB22AT3 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

P6SMB22AT3 specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101
MountingSurface Mount
Voltage - breakdown20.9V
Voltage - clamping (Max) @ ipp30.6V
Voltage - reverse standoff18.8V
Current - peak pulse (10/1000μs)20A
Power - peak pulse600W
Power line protectionNo
Capacitance @ frequency835pF @ 1MHz
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsAutomotive
CaseDO-214AA, SMB
Unidirectional channels1

Product details

600W Zener TVS for 18.8V rails

The P6SMB22AT3 is a single-direction Zener TVS diode from onsemi's P6SMB series, rated for 600W peak pulse power at 10/1000µs waveform. Its 18.8V reverse standoff voltage and 20.9V minimum breakdown voltage make it a fit for clamping transients on 15V to 18V DC rails in automotive electronics.

Clamping and capacitance at 1 MHz

Maximum clamping voltage is 30.6V at the rated 20A peak pulse current. The 835pF typical capacitance at 1 MHz is high enough to slow fast edges; for high-speed data lines, a lower-capacitance TVS would be preferred.

Obsolete — sourcing for legacy BOMs

onsemi lists the P6SMB22AT3 as Obsolete.

Frequently asked questions

How can I order the P6SMB22AT3 or check stock?

The P6SMB22AT3 is obsolete per onsemi. We source it through our independent supply chain — submit an RFQ with your target quantity and we will confirm availability and current pricing. No stock-holding claim is made here.

What is the peak pulse power of the P6SMB22AT3?

600W peak pulse power per the 10/1000µs waveform. This is the maximum surge energy the device can absorb in a single pulse before breakdown.

Is the P6SMB22AT3 AEC-Q101 qualified?

Yes, the series is marked Automotive, AEC-Q101, meaning it meets the automotive reliability standard for stress testing and lifetime.