Obsolete — sourcing through independent channels
The 1.5KE47CA-T is marked Obsolete by Diodes Incorporated.
1500W surge clamp for 40.2V rails
The 40.2V reverse standoff voltage means it sits across a 36–40V nominal DC rail without conducting leakage — it only fires when the line exceeds the 44.7V minimum breakdown threshold. This is a bidirectional device, so it clamps both positive and negative surges, making it suitable for AC signal lines or bipolar DC buses where polarity reversal is possible.
DO-201 axial — through-hole board integration
Housed in the DO-201AA (DO-27) axial leaded package, with the supplier device package designated DO-201. The through-hole mounting suits point-to-point wiring or PCB layouts where a leaded part provides mechanical strain relief. The Tape & Reel packaging is intended for automated insertion — verify feeder compatibility for the axial form factor.
This covers industrial, automotive under-hood, and military ambient conditions — the 175°C TJ ceiling allows the device to absorb repetitive surge energy without derating the peak pulse power below the 1500W rating, provided the average power dissipation stays within the package's thermal limits.
Not for mains — no power line protection
The 1.5KE47CA-T is explicitly marked as having no power line protection. It is intended for secondary-side DC rail clamping, signal line transient suppression, or low-voltage AC signal protection — not for 120/230 VAC mains input stages. The 40.2V standoff is too low for rectified mains; use a higher-voltage TVS or MOV for that application.