MCT4

PHOTOTRANSISTOR OPTOCOUPLER

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

PHOTOTRANSISTOR OPTOCOUPLER

MCT4
PACKAGE DIMENSIONS
0.230 (5.84) 0.209 (5.31) 0.195 (4.96) 0.178 (4.52)

0.210 (5.34) 0.170 (4.32)

0.560 (14.22) 0.500 (12.70)

0.100 (2.54) DIA. 3 0.048 (1.22) 0.028 (0.71) 0.046 (1.16) 0.036 (0.92) 45 4 1 0.019 (0.48) 4X 0.016 (0.41)
CATHODE 3

SCHEMATIC

2
ANODE 1 2 COLLECTOR

4 EMITTER

NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of .010 (.25) on all non-nominal dimensions unless otherwise specified.

DESCRIPTION
The MCT4 is a standard four-lead, TO-18 package containing a GaAs infrared emitting diode optically coupled to an NPN silicon planar phototransistor.

FEATURES
Hermetically package High current transfer ratio; typically 35% High isolation resistance; 1011 ohms at 500 volts High voltage isolation emitter to detector

2001 Fairchild Semiconductor Corporation DS300241 8/13/01

1 OF 6

www.fairchildsemi.com