SMA4124
1 Form A
600V / 1A
MOSFET Output Solid State Relay
Description
The SMA4124 is a single-pole, single-throw, normally open
multipurpose solid state relay. The circuit is composed of
an infra-red LED on the input side optically coupled to a
Photo Diode Array which drives back-to-back high voltage
enhancement type DMOS transistors on the output. The
SMA4124 has a high blocking voltage (600V) and is rated
for a continuous load current of 1A. The combination of
high blocking voltage, high load current, and small form
factor make the SMA4124 ideal for electromechanical and
reed relay replacement.
The SMA4124 comes standard in a 4 pin SIP package.
Features
High Blocking Voltage (600V MIN)
High Load Current (1A MAX Continuous)
Low Input Control Current (3mA TYP)
Low On Resistance (1.3Ω TYP)
High Input-to-Output Isolation (4kV)
Long Life / High Reliability
RoHS / Pb-Free / REACH Compliant
Agency Approvals
UL/C-UL:
VDE:
File # E90096
File # 40035191 (EN 60747-5-2)
Applications
Reed Relay Replacement
Mechanical Relay Replacement
Medical Equipment
Battery Monitoring
Multiplexers
Test Equipment
Absolute Maximum Ratings
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 Maximum Ratings may cause permanent damage
to the device and may adversely affect reliability.
Storage Temperature …………………………..-55 to +125°C
Operating Temperature ………………………-40 to +85°C
Continuous Input Current ………………………………..50mA
Transient Input Current ………………….……………..500mA
Reverse Input Control Voltage …………..…………………5V
Input Power Dissipation …………………………………40mW
Total Power Dissipation ……………………………..…..1.2W
Solder Temperature – Wave (10sec)……………….….260°C
Solder Temperature – IR Reflow (10sec)….…………..260°C
Schematic Diagram
Ordering Information
Part Number
SMA4124
Description
4 pin SIP, (25/Tube)
NOTE: Suffixes listed above are not included in marking on
device for part number identification
© 2014 Solid State Optronics
•
San José, CA
www.ssousa.com
•
+1.408.293.4600
Page 1 of 6
SMA4124
Rev 1.00 (03/05/2014)
001808
SMA4124
1 Form A
600V / 1A
MOSFET Output Solid State Relay
SMA4124 Solder Reflow Temperature Profile Recommendations
(1)
Infrared Reflow:
Refer to the following figure as an example of an optimal temperature profile for single occurrence infrared reflow.
Soldering process should not exceed temperature or time limits expressed herein. Surface temperature of device
package should not exceed 250ºC:
G
F
D
E
H
B
A
C
Process
Step
A
B
C
D
E
F
G
H
Description
Preheat Start Temperature (ºC)
Preheat Finish Temperature (ºC)
Preheat Time (s)
Melting Temperature (ºC)
Time above Melting Temperature (s)
Peak Temperature, at Terminal (ºC)
Dwell Time at Peak Temperature (s)
Cool-down (ºC/s)
150ºC
180ºC
90 - 120s
230ºC
30s
260ºC
10s
<6ºC/s
Parameter
(2)
Wave Solder:
Maximum Temperature:
Maximum Time:
Pre-heating:
Single Occurrence
260ºC (at terminal)
10s
100 - 150ºC (30 - 90s)
(3)
Hand Solder:
Maximum Temperature:
Maximum Time:
Single Occurrence
350ºC
3s
(at tip of soldering iron)
© 2014 Solid State Optronics
•
San José, CA
www.ssousa.com
•
+1.408.293.4600
Page 4 of 6
SMA4124
Rev 1.00 (03/05/2014)
001808
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