ASSR-1218 , ASSR-1219 and ASSR-1228
Form A, Solid State Relay (Photo MOSFET)
(60V/0.2A/10Ω)
Data Sheet
Description
The ASSR-12XX 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 volt-
age of 0.8V or less.
The single channel configurations, ASSR-1218 and
ASSR-1219, are equivalent to 1 Form A Electromechani-
cal Relays (EMR), and the dual channel configuration,
ASSR-1228, 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-1219 enables
AC/DC and DC-only output connections. For DC-only
connection, the output current, Io, increases to 0.4A
and the on-resistance, R(ON) reduces to 2.5Ω.
Features
•
Compact Solid-State Bi-directional Signal Switch
•
Single and Dual Channel Normally-off Single-Pole-
Single-Throw (SPST) Relay
•
60V Output Withstand Voltage
•
0.2A or 0.4A Current Rating
(See Schematic for ASSR-1219 Connection A and B)
•
Low Input Current: CMOS Compatibility
•
Low On-Resistance: 0.25Ω Typical for DC-only,
1Ω Typical for AC/DC
•
High Input-to-Output Insulation Voltage
(Safety and Regulatory Approved)
- 3750 Vrms for 1 min per UL1577
- CSA Component Acceptance
Applications
•
•
•
•
•
•
Telecommunication Switching
Data Communications
Industrial Controls
Medical
Security
EMR / Reed Relay Replacement
Functional Diagram
Opto-isolation
1
Turn-off
Circuit
4
Truth Table
LED
Off
On
Output
Open
Close
2
Single Channel, SPST Relay,
1 Form A in 4-Pin SO Package
3
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-1218
RoHS Compliant
-003E
-503E
-001E
-301E
-501E
-002E
Package
SO-4
Surface Mount
X
X
X
X
X
X
Gull Wing
Tape & Reel
X
Quantity
100 units per tube
1500 units per reel
50 units per tube
50 units per tube
ASSR-1219
300mil
DIP-6
X
X
X
X
X
X
1000 units per reel
50 units per tube
50 units per tube
1000 units per reel
ASSR-1228
-302E
-502E
300 mil
DIP-8
Note: option x2xE for UL1577 5000Vrms for 1minute will be offered to DIP-6 and DIP-8 only. ASSR-1218 in SO4 is tested at 3750Vrms
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-1219-501E to order product of 300mil DIP-6 Gull Wing Surface Mount package in Tape and Reel packaging
and RoHS Compliant.
Example 2:
ASSR-1228-002E 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-1218
Opto-isolation
Opto-isolation
1
Turn
Turn
-o
-o
Circuit
Circuit
4
Equivalent
Relay
Diagram
3
1
4
2
2
3
2
Embedded System
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