How can I understand the nomenclature of KETEK’s SiPM product description?

For single SiPMs, e.g. PM3325-WB:

• PM = PhotoMultiplier
• 33 = size of active area, here 3.0 x 3.0 mm²
• 25 = microcell size, here 25 µm
• W = package type, here Waver Level Package
  E = Epoxy type package
• B = SiPM peak sensitivity, here Blue

 

For evaluation PCBs, e.g. PE3350-EB-AR:

• PE = Photomultiplier Evaluation
• 33 = size of SiPM active area, here 3.0 x 3.0 mm²
• 50 = microcell size, here 50 µm
• E = package type, here Epoxy type package
  W = Waver Level Package
• A = version number
• R = type of readout, optical bench, MCX plugs, here Resistive tap, DC coupled
  X = optical bench, MCX plugs, AC coupled
  S = standard version, SMA plugs, AC coupled

 

For SiPM Arrays, e.g. PA3325-WB-0808

• PA = Photomultiplier Array
• 33 = size of active area, here 3.0 x 3.0 mm²
• 25 = microcell size, here 25 µm
• W = package type, here Waver Level Package
  E = Epoxy type package
• 0808 – number of SiPMs in x and y direction, here 8 x 8 array