
1/7
OPTICAL MOS RELAYS
 electronic components
OCM1
M
4, 1
M
5 SERIES
OCM1
M
M
M
M
M
4, 1
M
5 Series
Low Output-capacitance Type Optical MOS Relay For DC Load Only
GENERAL DESCRIPTION
The OCM1
M
4 and OCM1
M
5 Series are optical MOS relays for DC load only that provide high-
speed response and are capable of handling high-frequency signals. The input portion is an
infrared light emitting diode. The output portion uses a combination of low-capacitance VD-
MOS (Vertical Diffusion MOS) FETs and photodiode arrays. The device is encased in an
extremely small 6-pin plastic DIP or SMD-type (gull-wing) package.
The optical MOS relay switch may be used in applications that currently use mechanical relay
switches, but offers smaller size, noise-free switching, and electronic circuit compatibility
because of its non-mechanical operation. Optical MOS relay switches also dissipate less power
than equivalent bipolar devices at lower switching frequencies.
FEATURES
 Infinitesimally small control voltage
 Excellent high-frequency characteristics (>30 dB isolation at 10 MHz)
 High-speed response (t
ON
 and t
OFF
 is 200 
m
s or less)
 Low leak current
 No chattering or swich bounces
 No mechanical switching noises
 Small size and easy mounting (6-Pin plastic DIP or SMD-type [gull-wing] package)
APPLICATIONS
 Measurement equipment
 Audio-visual equipment
 Home electronics
 Automatic meter reading equipment
 Other applications requiring small size or high performance
 Other applications requiring non-contact switches
E2P0046-37-X4
This version:  Jan. 1998
Previous version:  May. 1997