Lead-Free / RoHS 3 Compliant / REACH Compliant SOIC-20 socket (300 mil body, 1.27 mm pitch) to DIP-20 (300 mil width) adapter. Top-side socket type: 3M Textool 220-7201-55-1902 Comes fully assembled, as shown. PCB construction: FR-4 UL94V-0. PCB operating temperature range: -40C to +130C. PCB reflow maximum temperature: +260C. PCB Assembly standard: IPC-A-610 Class II.