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1.5KE300A-AT-B

YAGEO 1.5KE300A-AT/B TVS Diode, 1500W, 256V Standoff

MPN1.5KE300A-AT/B
Active

YAGEO 1.5KE-AT series automotive TVS diode, 1.5KE300A-AT/B, AEC-Q101, 1500W peak pulse, 256V standoff, 414V clamping, DO-201AA axial, through hole.

$0.1663Ref. price · indicative, final on quote
YAGEO 1.5KE300A-AT/B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

1.5KE300A-AT/B specifications
ParameterValue
TypeZener
SeriesAutomotive, AEC-Q101, 1.5KE-AT
MountingThrough Hole
Voltage - breakdown285V
Voltage - clamping (Max) @ ipp414V
Voltage - reverse standoff256V
Current - peak pulse (10/1000μs)3.7A
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-55°C~150°C(TJ)
PackageBox
ApplicationsAutomotive
CaseDO-201AA, DO-27, Axial
Unidirectional channels1

Product details

Automotive TVS with 1500 W surge rating

The 1.5KE300A-AT/B: The 414 V clamping ceiling sits well below the breakdown rating of typical 600 V power MOSFETs and IGBTs used in automotive traction inverters and DC-DC converters, making this part a viable secondary-protection element after a primary fuse or eFuse.

Housed in a DO-201AA (DO-27) axial leaded package, the device is intended for through-hole mounting. The axial body simplifies hand-replacement during rework and allows the part to be inserted into existing PCB layouts originally designed for legacy 1.5 kW TVS diodes.

Sourcing and compliance posture

AEC-Q101 qualification means the part has passed the full suite of automotive-grade reliability tests (HTRB, H3TRB, temperature cycling, ESD) and is supported with PPAP documentation from YAGEO.