SSC P4 bond wires

[LilKevin715]

Has anyone seen a SSC P4 U-bin with four bond wires? I thought normally there were only two? Please see the pixs below.



My previous purchases from DX were "normal" SSC P4's as shown below.

 

[fyrstormer]

If you look closely at "normal" P4s, there's at least a third bond wire that connects to the die carrier right next to the die itself. My guess is Seoul Semiconductor just decided to relocate those wires to the same attachment points that Cree uses, since they use Cree's E-series emitter die. That would be a good thing if it means the die carrier is no longer electrically charged like it used to be on older P4s, and otherwise it at least wouldn't be a bad thing.

 

[bshanahan14rulz]

Yeah, but while the XR-E's die is mounted on a large SiC ESD-protection diode, the P4's ESD diode is still off to the side.

Looks to me like they just took the cathode bondwire closer to the LED die, and added another one for good measure. Increased current handling, maybe they're expecting people to overdrive these :D