This part is a kind of semiconductor called GRM155.

Function of this product has GR Series / Monolithic Ceramic Capacitors.

Manufacturers : Murata Electronics

Image and pinout :

Some of the text within the PDF file :

Capacitors High Dielectric Constant Type 6.3/16/25/50V Monolithic Ceramic Capacitors GR_R6/R7/F5/E4 (X5R/X7R/Y5V/Z5U) e g e L W Part Number GRM155 GRM188* GRM216 GRM219 GRM21B GRM319 GRM31M GRM31C Dimensions (mm) L W T e 1.0 ±0.05 0.5 ±0.05 0.5 ±0.05 0.15 to 0.3 1.6 ±0.1 0.8 ±0.1 0.8 ±0.1 0.2 to 0.5 0.6 ±0.1 2.0 ±0.1 1.25 ±0.1 0.85 ±0.1 0.2 to 0.7 1.25 ±0.1 0.85 ±0.1 3.2 ±0.15 1.6 ±0.15 1.15 ±0.1 0.3 to 0.8 3.2 ±0.2 1.6 ±0.2 1.6 ±0.2 g min. 0.4 0.5 0.7 * Bulk Case : 1.6 ±0.07(L)g0.8 ±0.07(W)g0.8 ±0.07(T) Part Number GRM155R61A683KA01 GRM155R61A104KA01 GRM188R61A334KA61 GRM188R61A474KA61 GRM188R61A684KA61 GRM188R61A105KA61 GRM188R60J105KA01 GRM219R61A105KC01 GRM21BR61A225KA01 GRM219R60J155KC01 GRM21BR60J225KA01 GRM21BR60J335KA11 GRM21BR60J475 [ ... ]

GRM155 PDF Datasheet Download