4N25,4N25A,4N26,4N27,4N28(Short) TOSHIBA Photocoupler GaAs IRed & PhotoTransistor 4N25(Short),4N25A(Short),4N26(Short),4N27(Short),4N28(Short) AC Line / Digital Logic Isolator. Unit in mm Digital Logic / Digital Logic Isolator. Telephone Line Receiver. Twisted Pair Line Receiver High Frequency Power Supply Feedback Control. Relay Contact Monitor. The TOSHIBA 4N25 (Short) through 4N28 (Short) consists of a gallium arsenide infrared emitting diode coupled with a silicon phototransistor in a dual in line package. Switching speeds: 3s (typ.) DC current transfer ratio: 100% (typ.) 11 Isolation resistance: 10 (min.) Isolation voltage: 2500Vrms (min.) UL recognized: UL 1577, file No. E67349 TOSHIBA 11 7A8 Weight: 0.4g Pin Configurations (top view) 1 2002-09-25 4N25,4N25A,4N26,4N27,4N28(Short) Maximum Ratings (Ta = 25C) Characteristic Symbol Rating Unit Forward current (continuous) I 80 mA F Forward current derating I / C 1.07 (*) mA / C F Peak forward current (Note 1) I 3 A PF Power dissipation P 150 mW D Power dissipation derating P / C 2.0 (*) mW / C D Reverse voltage V 3 V R Collector emitter voltage BV 30 V CEO Collector base voltage BV 70 V CBO Emitter collector voltage BV 7 V ECO Collector current (continuous) I 100 mA C Power dissipation P 150 mW C Power dissipation derating P / C 2.0 (*) mW / C C Storage temperature range T 55~150 C stg Operating temperature range T 55~100 C opr Lead soldering temperature (10s) T 260 C sol Total package power dissipation P 250 mW T Total package power dissipation P / C 3.3 (*) mW / C T derating (Note 1) Pulse width 300s, 2% duty cycle. (*) Above 25C ambient. 2 2002-09-25 Coupled Detector LED