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onsemi P6KE20ARL — Circuit Protection

P6KE20ARL onsemi Zener TVS 600W Obsolete – Sourcing &

MPNP6KE20ARL
Obsolete

onsemi P6KE20ARL, Zener TVS diode, 600W peak pulse power, 19V breakdown minimum, 17.1V reverse standoff, unidirectional, T-18 axial package, obsolete.

$0.1000Ref. price · indicative, final on quote
onsemi P6KE20ARL datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

P6KE20ARL specifications
ParameterValue
TypeZener
MountingThrough Hole
Voltage - breakdown19V
Voltage - clamping (Max) @ ipp27.7V
Voltage - reverse standoff17.1V
Current - peak pulse (10/1000μs)22A (8/20µs)
Power - peak pulse600W
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
ApplicationsGeneral Purpose
CaseT-18, Axial
Unidirectional channels1

Product details

The P6KE20ARL: The 19V breakdown minimum and 17.1V reverse standoff mean it clamps a 12V or 15V rail before it exceeds the downstream IC's absolute maximum — the 27.7V clamping ceiling is the voltage the protected node actually sees during a surge.

onsemi lists the P6KE20ARL as Obsolete.

Unidirectional clamp – one channel, axial body

Single unidirectional channel — cathode band marks the polarity. The axial body is a standard through-hole footprint; the 22A peak pulse current at 8/20µs gives surge-handling headroom for secondary protection on a 24V DC bus or telecom line.

Frequently asked questions

What is the replacement for P6KE20ARL?

No official successor is listed by onsemi. The P6KE20A (non-RL suffix) is the same die in a different packaging format — bulk tube rather than Tape & Reel. Verify the breakdown voltage (19V min,) and clamping (27.7V,) match your rail before substituting. For a direct drop-in on the same reel format, cross-reference against other onsemi P6KE20 variants or a modern SMC/SMB surface-mount TVS with equivalent 600W rating.

How does P6KE20ARL compare to P6KE20A?

Both share the same Zener TVS die — same 19V breakdown, 600W rating, and unidirectional polarity. The difference is packaging: P6KE20ARL ships in Tape & Reel, while P6KE20A ships in bulk tube. Electrical performance is identical.