DESCRIPTION
The 4N32 and 4N33 are optically coupled isolators with a
gallium arsenide infrared LED and a solicon photodarlington
sensor.
Switching can be achieved while maintaining a high degree
of isolation between driving and load circuits.
These optocouplers can be used to replace reed and
mercury relays with advantages of long life, high speed
switching and elimination of magnetic fields.

FEATURES
• Very high current transfer ratio, 500 % min.
• High isolation resistance, 1011 Ω typical
• Standard plastic DIP package
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912

AGENCY APPROVALS
• UL1577, file no. E52744 system code H
• DIN EN 60747-5-2 (VDE 0884) / DIN EN 60747-5-5
(pending), available with option 1
• BSI IEC 60950; IEC 60065
• FIMKO