MOC8021M Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – Photodarlington Optocoupler (No Base Connection)

November 2007
MOC8021M, MOC8050M
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Photodarlington Optocoupler (No Base Connection)
Features
■ High BV_CEO
– Minimum 50V (MOC8021M)
– Minimum 80V (MOC8050M)
■ High current transfer ratio:
– Minimum 1,000% (MOC8021M)
– Minimum 500% (MOC8050M)
■ 500%
■ No base connection for improved noise immunity
■ Underwriters Laboratory (UL) recognized
File #E90700, Volume 2
■ IEC 60747-5-2 approved (ordering option V)
Applications
■ Appliances, measuring instruments
■ I/O interface for computers
■ Programmable controllers
■ Portable electronics
■ Interfacing and coupling systems of different
potentials and impedance
■ Solid state relays
Description
The MOC8021M and MOC8050M are photodarlington-
type optically coupled optocoupler. The devices have a
gallium arsenide infrared emitting diode coupled with a
silicon darlington phototransistor.
Schematic
ANODE 1
CATHODE 2
N/C ³
6 N/C
5 COLLECTOR
4 _EMITTER
©2000 Fairchild Semiconductor Corporation
MOC8021M, MOC8050M Rev. 1.0.3
www.fairchildsemi.com