1. 4pin DIP package 2. Double transfer mold package (Ideal for Flow Solder- ing) 3. High collector-emitter voltage (VCEO:80V(*)) 4. Current transfer ratio (CTR : MIN. 50% at IF=5 mA, VCE=5V) 5. Several CTR ranks available 6. High isolation voltage between input and output (Viso(rms) : 5.0 kV) (*) Up.