6N137-300E

6N137-300E is the gull-wing surface-mount code for the Broadcom 6N137 — the 10 MBd logic-gate optocoupler in an 8-pin SMD outline for high-speed digital isolation on SMT lines, beside the through-hole DIP-8 series entry on this site. Broadcom's option system for this family reads: 300 = gull-wing surface mount, 500 = tape-and-reel packaging, 020 = 5000 Vrms UL option, 060 = IEC 60747-5-2 option, and the trailing E marks the lead-free build — so a reel-fed line should quote the 500 option code explicitly rather than assume this tube-supplied SMD code. The detector is an open-collector, Schottky-clamped output with a strobe enable, with ac/dc parameters guaranteed across -40 °C to +85 °C; Broadcom lists the 6N137 Active. Selection advice: high-speed optocouplers need proper bypassing and layout to reach their rated speed — follow the datasheet recommendations, and match the full option code, because the same base part ships in DIP, SOIC-8 and widebody outlines.