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M221-L Datasheet, PDF (1/5 Pages) Solid State Optronic – 1 Form A Solid State Relay
M221-L
1 Form A
Solid State Relay
DESCRIPTION
The M221-L is a bi-directional, single-pole, single-throw, normally open multipurpose solid-state relay in a miniature 4-pin small outline
package. It is designed to replace electromechanical relays in general purpose switching applications. The relay consists of an integrated
circuit that drives two rugged source-to-source enhancement type DMOS transistors - optically coupled to a light emitting diode. This
device also includes current-limiting circuitry. During increased load currents or transient current spikes, this circuitry acts to limit current
in order to protect itself as well as downstream components.
FEATURES
APPLICATIONS
• Transient over current protection (170mA TYP)
• Low input control power consumption (2.5mA TYP)
• 120mA maximum continuous load current
• 30 ohms maximum on-resistance
• Ultra miniature 4-pin small outline package
• High input-to-output isolation
• Long life/high reliability
• Reed relay replacement
• Meter reading systems
• Medical equipment
• Battery monitoring
• Multiplexers
OPTIONS/SUFFIXES*
ABSOLUTE MAXIMUM RATINGS*
• -TR Tape and Reel
NOTE: Suffixes listed above are not included in marking on
device for part number identification.
SCHEMATIC DIAGRAM
PARAMETER
UNIT MIN TYP MAX
Storage Temperature
°C -55
125
Operating Temperature
°C -40
85
Continuous Forward
mA
50
Current
Peak Forward Current
A
1
(1us)
Reverse Input Control
V
5
Voltage
Output Power Dissipation mW
400
*The values indicated are absolute stress ratings. Functional operation of the
device is not implied at these or any conditions in excess of those defined in
electrical characteristics section of this document. Exposure to Absolute
Ratings may cause permanent damage to the device and may adversely
affect reliability.
APPROVALS
• BABT CERTIFICATE #650192:
BS EN 60950, BS EN 41003, BS EN 60065
© 2004 Solid State Optronics • San José, CA
www.ssousa.com • +1.408.293.4600
Page 1 of 5
M221-L
rev 1.40 (10/25/2004)