Skip to main content
Log in
STMicroelectronics 1.5KE220ARL — Circuit Protection

1.5KE220ARL TVS Diode, 1500W, 209V Breakdown, DO-201

MPN1.5KE220ARL
Obsolete

STMicroelectronics 1.5KE220ARL, TRANSIL™ series, Type Zener, 1500W peak pulse power, 209V breakdown, 388V clamping, 26A peak current, DO-201AA/DO-27 axial, through hole.

$0.8200Ref. price · indicative, final on quote
STMicroelectronics 1.5KE220ARL datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

1.5KE220ARL specifications
ParameterValue
TypeZener
Series1.5KE, TRANSIL™
MountingThrough Hole
Voltage - breakdown209V
Voltage - clamping (Max) @ ipp388V
Voltage - reverse standoff188V
Current - peak pulse (10/1000μs)26A (8/20µs)
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Capacitance @ frequency625pF @ 1MHz
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

What this 1.5KE220ARL is and what it protects

The STMicroelectronics 1.5KE220ARL is a 1500W unidirectional transient voltage suppressor (TVS) from the TRANSIL™ series, built on Zener technology. The device offers a minimum breakdown voltage of 209V and a maximum clamping voltage of 388V at the peak pulse current of 26A (8/20µs waveform), making it suitable for 188V nominal rail protection where the reverse standoff voltage is 188V.

Package and mounting — through-hole axial DO-201

This part comes in a DO-201AA (also known as DO-27) axial-lead through-hole package. The body is cylindrical with leads on both ends, intended for hand insertion or wave soldering into plated through-holes on a PCB. The axial form factor is common in power-supply input stages and telecom line cards where the TVS is often mounted standing off the board or with formed leads.

Lifecycle status — obsolete, sourced to order

Frequently asked questions

What is the replacement for 1.5KE220ARL?

There is no official manufacturer replacement listed for the 1.5KE220ARL. For a form-fit-function substitute, look for a 1500W unidirectional TVS in a DO-201 axial package with a 188V standoff voltage, 209V minimum breakdown, and 388V maximum clamping. Parts from the same 1.5KE series with different voltage ratings are not drop-in replacements. Sourcing through independent distribution is the current path for this specific order code.