ASSR-5211
High Current, 1 Form A, Solid State Relay (MOSFET)
(600V/0.2A/16Ω)
Data Sheet
Features
• Compact Solid-State Bi-directional Signal Switch
• Single Channel Normally-o Single-Pole-Single-Throw
(SPST) Relay
• 600V Output Withstand Voltage
• 0.2A or 0.4A Current Rating
• Low Input Current: CMOS Compatibility
• Low On-Resistance:
2.5Ω Typical for DC-only, 10Ω Typical for AC/DC
• High Speed Switching:
0.7ms (Ton), 0.07ms (To ) Typical @ I
F
= 5mA
• High Transient Immunity: >1kV/μs
• High Input-to-Output Insulation Voltage
(Safety and Regulatory Approvals Pending)
- 3750 V
RMS
for 1 min per UL1577
- CSA Component Acceptance
- *5000 V
RMS
/1 Minute rating is for Option X21 only
(Please consult your regional Avago representatives)
Applications
• Industrial Controls
• Factory Automation
• Data Acquisition
• Measuring Instrument
• Medical System
• Security System
• EMR / Reed Relay Replacement
Description
The ASSR-5211 is speci cally designed for high current
applications, commonly found in the industrial equip-
ments. The relay is a solid-state replacement for single-
pole, normally-open, (1 Form A) electromechanical relays.
The ASSR-5211 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 ASSR-5211 connection A, as shown in the schematic,
allows the relay to switch either ac or dc loads. The con-
nection B, with its advantages of reduced on-resistance
and higher output current, allows the relays to switch dc
loads only.
The electrical and switching characteristics are speci ed
over the temperature range of -40°C to +85°C.
Functional Diagram
Truth Table
LED Output
O Open
On Close
Opto-isolation
Turn-off
Circuit
1
2
3
4
6
5
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.
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
