1500W Zener TVS — key parametrics and fit
The 1.5KE16AE3/TR13: Its 22.5V clamping voltage at 67A peak pulse current means it holds the transient below the downstream device's breakdown threshold — a 24V bus or 15V rail sees the spike clipped before it reaches the silicon. Reverse standoff voltage is 13.6V, so the diode stays out of conduction below that level; breakdown starts at 15.2V minimum.
Obsolete — sourcing through independent channels
Microsemi has marked the 1.5KE16AE3/TR13 as Obsolete. Available through independent surplus and broker channels.
Housed in a DO-201AA (DO-27) axial-lead package, through-hole mount. The CASE-1 supplier device package is the same mechanical outline — a standard 0.042-inch diameter lead fits a 0.052-inch plated through-hole. The axial body is about 9.1 mm long, 5.3 mm diameter, with a 25.4 mm lead spacing.