Zener surge clamp in a DO-13 can
The 1N6039A/TR: This is a through-hole part in the DO-13 package, a hermetic metal can that handles the thermal stress of repetitive surge events and is common in military and aerospace designs where a glass-passivated junction is preferred.
Surge current and temperature range
The 8.5V reverse standoff voltage means the part begins conducting significantly above that rail, making it suitable for protecting an 8.5V or lower bias line from transients.
For a BOM line requiring this specific bidirectional Zener with the 1500W rating, we source and quote to order against your quantity.
DO-13 is a two-lead, stud-mount-compatible through-hole package with a metal case that acts as the cathode. The anode is the case. The through-hole leads require a 0.042-inch diameter hole per typical PCB footprint; the metal tab can be soldered to a copper pour for additional thermal mass.