Lead-Free / RoHS 3 Compliant / REACH Compliant 1.27 mm (50 mils) pitch dual row 20-pin vertical female header to 300 mil width DIP-20 adapter. Top side uses gold plated dual row surface mount vertical female header. Bottom side uses two gold plated single row surface mount vertical male headers. This adapter comes pre-assembled with top and bottom headers installed. PCB dimensions: 700 mils x 1000 mils x 62.5 mils (17.78 mm x 25.4 mm x 1.6 mm). 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.