This part is a kind of semiconductor called PC923L0NSZ.

Function of this product has Gate Drive DIP 8 pin OPIC Photocoupler.

Manufacturers : Sharp Electrionic

Image and pinout :

Some of the text within the PDF file :

PC923L0NSZ Series PC923L0NSZ Series High Speed, Gate Drive DIP 8 pin ∗OPIC Photocoupler ■ Description PC923L0NSZ Series contains a LED optically coupled to an OPIC chip. It is packaged in a 8 pin DIP, available in SMT gullwing lead form option. Input-output isolation voltage(rms) is 5.0 kV, High speed response (tPHL, tPLH : MAX. 0.5 µs). ■ Agency approvals/Compliance 1. Recognized by UL1577 (Double protection isolation), file No. E64380 (as model No. PC923L) 2. Approved by VDE (VDE0884) (as an option), file No. 87446 (as model No. PC923L) 3. Package resin : UL flammability grade (94V-0) ■ Features 1. 8 pin DIP package 2. Double transfer mold package (Ideal for Flow Soldering) 3. Built-in direct drive circuit for MOSFET / IGBT drive (IO1P, IO2P : 0.6 A) 4. [ ... ]

PC923L0NSZ PDF Datasheet Download