Skip to main content
onsemi 1.5KE39ARL4 — Circuit Protection
onsemi

1.5KE39ARL4 onsemi Zener TVS Diode – 1500W, DO-201AD

MPN1.5KE39ARL4
Obsolete

onsemi Mosorb™ series, Zener TVS diode, 1.5KE39ARL4, 1500W peak pulse power, 33.3V reverse standoff, DO-201AD axial package, through-hole mount.

1.5KE39ARL4 datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

1.5KE39ARL4 Technical Specifications
ParameterValue
TypeZener
SeriesMosorb™
Mounting typeThrough Hole
Voltage - breakdown37.1V
Voltage - clamping (Max) @ ipp53.9V
Voltage - reverse standoff33.3V
Current - peak pulse (10/1000μs)28A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~175°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-201AD, Axial
Unidirectional channels1

Product details

Surge rating and clamping for 24V rails

The 1.5KE39ARL4 is a 1500W peak pulse power Zener TVS diode from the onsemi Mosorb™ series. Its 33.3V reverse standoff voltage makes it a natural fit for protecting 24V DC power rails — the clamping voltage at 28A peak pulse current (10/1000µs waveform) is 53.9V, which keeps transients off downstream silicon rated for 60V or higher.

Temperature range and package

Operating junction temperature spans -65°C to 175°C, covering engine-bay and outdoor telecom enclosures without derating. The DO-201AD axial package suits through-hole assembly — the lead bend absorbs board flex better than a surface-mount TVS in high-vibration environments.

Obsolete — plan the BOM transition

onsemi has marked the 1.5KE39ARL4 as Obsolete. No official successor is listed in the product status. For existing designs, a last-time buy or a cross to a current-production 1.5KE series variant (e.g., 1.5KE39A in the same DO-201AD package) should be evaluated.

Frequently asked questions

What is the difference between 1.5KE39ARL4 and 1.5KE39A?

The 1.5KE39ARL4 suffix indicates tape-and-reel packaging, while the 1.5KE39A is typically supplied in bulk or ammo pack. Both share the same DO-201AD package, 33.3V standoff, and 1500W peak pulse rating. The RL4 suffix is a packaging code — the silicon die is identical.