ASSR-4118 , ASSR-4119 and ASSR-4128
Form A, Solid State Relay (Photo MOSFET)
(400V/0.10A/35)
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/off two discrete high volt-
age MOSFETs. The relay turns on (contact closes) with a
minimum input current of 3mA through the input LED.
The relay turns off (contact opens) with an input voltage
of 0.8V or less.
The single channel configurations, ASSR-4118 and ASSR-
4119, are equivalent to 1 Form A Electromechanical Re-
lays (EMR), and the dual channel configuration, ASSR-
4128, is 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. ASSR-4119 enables AC/DC and
DC-only output connections. For DC-only connection,
the output current, Io, increases to 0.2A and the on-re-
sistance, R(ON) reduces to 10.
Features
Compact Solid-State Bi-directional Signal Switch
Single and Dual Channel Normally-off Single-Pole-
Single-Throw (SPST) Relay
400V Output Withstand Voltage
0.1A or 0.2A Current Rating
(See Schematic for ASSR-4119 Connection A and B)
Low Input Current: CMOS Compatibility
Low On-Resistance: 8 Typical for DC-only,
25 Typical for AC/DC
High Input-to-Output Insulation Voltage
(Safety and Regulatory Approvals Pending)
- 3750 Vrms for 1 min per UL1577
- CSA Component Acceptance
Functional Diagram
Opto-isolation
Applications
Telecommunication Switching
Data Communications
Industrial Controls
Medical
Security
EMR / Reed Relay Replacement
1
Turn-off
Circuit
4
Truth Table
LED Output
Off
On
Open
Close
2
3
Single Channel, SPST Relay,
1 Form A in 4-Pin SO Package
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.
Ordering Information
ASSR-xxxx is UL Recognized with 3750 Vrms for 1 minute per UL1577 and is approved under CSA Component Accept-
ance Notice #5.
Option
Part number
ASSR-4118
RoHS Compliant
-003E
-503E
-001E
Package
SO-4
Surface Mount Gull Wing Tape & Reel Quantity
X
X
X
100 units per tube
1500 units per reel
50 units per tube
ASSR-4119
-301E
-501E
-002E
300mil DIP-6
X
X
X
X
X
50 units per tube
1000 units per reel
50 units per tube
ASSR-4128
-302E
-502E
300 mil DIP-8
X
X
X
X
X
50 units per tube
1000 units per reel
To order, choose a part number from the part number column and combine with the desired option from the option
column to form an order entry.
Example 1:
ASSR-4119-501E to order product of 300mil DIP-6 Gull Wing Surface Mount package in Tape and Reel packaging
and RoHS Compliant.
Example 2:
ASSR-4128-002E to order product of 300mil DIP-8 package in tube packaging and RoHS Compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for information.
System Schematics
ASSR-4118
Opto-isolation
Opto-isolation
1
Turn-off
Turn-off
Circuit
Circuit
4
Equivalent
Relay
Diagram
3
1
4
2
2
3
2
Embedded System
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