6N138,6N139 TOSHIBA Photocoupler IRED & Photo IC 6N138, 6N139 Current Loop Driver Unit: mm Low Input Current Line Receiver CMOS Logic Interface The TOSHIBA 6N138 and 6N139 consists of an infrared emitting diode coupled with a split-Darlington output configuration. A high speed Ired manufactured with an unique LPE junction, has the virtue of fast rise and fall time at low drive current. • Isolation voltage: 2500 Vrms (min) • Current transfer ratio : 6N138 − 300% (min) (IF=1.6mA) : 6N139 − 400% (min) (IF=0.5mA) • Switching time: 6N138 − tPHL = 10μs (max) − tPLH = 35μs (max) 6N139 − tPHL = 1μs (max) − t PLH = 7μs (max) • UL-recognized: UL 1577, File No.E67349 TOSHIBA 11−10C4S Pin Configuration (top view) Weight: 0.54 g (typ.)