■ Features
1. High collector-emitter voltage ( VCEO : 70V)
2. High isolation voltage between input and
   output ( Viso : 5 000V rms )
3. TTL compatible output
4. Recognized by UL, file No. E64380

■ Applications
1. Telephone sets, telephone exchangers
2. System appliances, measuring instruments
3. Signal transmission between circuits of
   different potentials and impedances