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onsemi 1.5SMC30AT3 — Circuit Protection
onsemi

1.5SMC30AT3 Zener TVS Diode – onsemi, 1500W, DO-214AB (SMC)

MPN1.5SMC30AT3
Obsolete

onsemi 1.5SMC30AT3, Zener TVS diode, 1500W peak pulse power, 25.6V reverse standoff, 41.4V clamping, DO-214AB (SMC) surface-mount package.

$0.6500Ref. price · indicative, final on quote
1.5SMC30AT3 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

1.5SMC30AT3 Technical Specifications
ParameterValue
TypeZener
Mounting typeSurface Mount
Voltage - breakdown28.5V
Voltage - clamping (Max) @ ipp41.4V
Voltage - reverse standoff25.6V
Current - peak pulse (10/1000μs)36A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ApplicationsGeneral Purpose
CaseDO-214AB, SMC
Unidirectional channels1

Product details

Zener TVS for 24V rail protection

The 1.5SMC30AT3 is a unidirectional Zener TVS diode from onsemi, rated for 1500W peak pulse power (10/1000µs waveform). It protects a single line with a 25.6V reverse standoff voltage, a minimum breakdown of 28.5V, and a maximum clamping voltage of 41.4V at 36A peak pulse current. This part is designed for general-purpose transient suppression on 24V DC rails — the standoff voltage sits comfortably above the nominal rail, while the clamp keeps the spike below downstream component ratings.

Obsolete — sourcing options

onsemi has marked the 1.5SMC30AT3 as Obsolete. No factory orders are accepted; availability is limited to existing distributor stock or last-time-buy remnants. For a BOM line that must be filled, the SMC footprint is shared by many active TVS parts from onsemi and other manufacturers — a cross-reference search is the practical next step.

Package and mounting

Supplied in Tape & Reel (TR) or Cut Tape (CT) options, surface-mount to SMC. The SMC body handles the 1500W pulse without exceeding the junction temperature limit of -65°C to 150°C.

Frequently asked questions

How can I order 1.5SMC30AT3 or check stock?

The 1.5SMC30AT3 is obsolete per onsemi. No direct factory orders are available. Stock is limited to distributor inventory — submit an RFQ for current availability and pricing. We source across our network and confirm at quote time.

What is the replacement for 1.5SMC30AT3?

onsemi has not published an official successor for this order code. A functionally equivalent TVS with the same DO-214AB footprint, 1500W rating, and similar standoff/clamp voltages (e.g., 1.5SMC30A from onsemi or a Littelfuse SMCJ series part) is the typical cross-reference path. Confirm the breakdown and clamp thresholds against your rail before substituting.