1500W bidirectional Zener TVS in DO-13
The 1N6045A/TR: It clamps a 15V nominal rail to 25.2V max at 59.5A peak pulse current, with a minimum breakdown voltage of 17.1V. The DO-13 through-hole package suits board-level transient protection in general-purpose industrial and telecom equipment.
Clamping margin and pulse current
At 59.5A peak pulse current the clamping voltage reaches 25.2V — a 68% rise above the 15V standoff. That margin matters when the protected circuit has a 30V absolute maximum; the TVS holds the transient below the damage threshold. The 1500W rating assumes a 10/1000µs pulse; shorter pulses (e.g. 8/20µs) allow higher peak current before the device reaches its thermal limit.
Microchip lists the 1N6045A/TR as Active.
The DO-13 package is a hermetic metal can with two axial leads — the cathode band identifies polarity, though the bidirectional structure conducts symmetrically. Through-hole mounting requires a drilled PCB with 0.040-inch diameter holes; the leads are solder-dipped for reliable wetting.