TVS diode selection anchor – 600 W, 160 V standoff, DO-214AA
The 259 V clamping voltage at 2.3 A peak pulse current defines the protection ceiling — the downstream circuitry must survive that peak without damage. General-purpose application covers industrial power supplies, telecom line cards, and DC bus protection where a 160 V nominal rail needs transient suppression. The DO-214AA (SMB) surface-mount package fits standard reflow profiles and is tape-and-reel packaged for automated assembly.
Parametric guardrails – breakdown, clamp, and temperature range
The 178 V minimum breakdown voltage is the trigger threshold; the protected line must never exceed this during normal operation. The 259 V maximum clamp at 2.3 A is the worst-case surge voltage the load sees — confirm the downstream components have adequate voltage margin. Power line protection is not enabled — the part is designed for signal or low-power DC bus protection, not AC mains.
Active lifecycle – no obsolescence urgency
Microchip Technology lists the SMBJ160CAE3/TR13 as Active.