ASSR-4110, ASSR-4111, ASSR-4120
General Purpose, Form A, Solid State Relay (Photo MOSFET)
(400V/0.12A/25)
Data Sheet
Description
The ASSR-41xx Series consists of an AlGaAs infrared
light-emitting diode (LED) input stage optically
coupled to a high-voltage output detector circuit. The
detector consists of a high-speed photovoltaic diode
array and driver circuitry to switch on/o two discrete
high voltage MOSFETs. The relay turns on (contact
closes) with a minimum input current of 3mA through
the input LED. The relay turns o (contact opens) with
an input voltage of 0.8V or less.
The single channel configurations, ASSR-4110 and
ASSR-4111, are equivalent to 1 Form A Electromechani-
cal Relays (EMR), and the dual channel con guration,
ASSR-4120, are equivalent to 2 Form A EMR. They are
available in 4-pin SO, 6-pin DIP, 8-pin DIP and Gull
Wing Surface Mount for DIP packages. Their electrical
and switching characteristics are speci ed over the
temperature range of -40°C to +85°C. They are used for
general purpose switching of signals and low power
AC/DC loads.
ASSR-4111 enables AC/DC and DC-only output
connec tions. For DC-only connection, the output
current, Io, increases to 0.24A and the on-resistance,
R
(ON)
reduces to 8.5.
Functional Diagram
Features
Compact Solid-State Bi-directional Signal Switch
Single and Dual Channel Normally-o Single-Pole-
Single-Throw (SPST) Relay
400V Output Withstand Voltage
0.12A or 0.24A Current Rating
(See Schematic for ASSR-4111 Connection A and B)
Low Input Current: CMOS Compatibility
Low On-Resistance:
5.5 Typical for DC-only, 16 Typical for AC/DC
Very High Output O -state Impedance:
10 Teraohms Typical
High Speed Switching:
0.1ms (Ton), 0.02ms (To ) Typical
High Transient Immunity: >1kV/s
High Input-to-Output Insulation Voltage
(Safety and Regulatory Approvals)
- 3750 Vrms for 1 min per UL1577
- CSA Component Acceptance
Applications
Telecommunication Switching
Data Communications
Industrial Controls
Medical
Security
EMR / Reed Relay Replacement
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
Truth Table
Opto-isolation
Turn-off
Circuit
1
2
4
3
Single Channel, SPST Relay,
1 Form A in 4-Pin SO Package
CloseOn
OpenOff
OutputLED
