RoHS compliant
(a) Series Name SG: SG Series
3 : 3 VDC
(b) Nominal Voltage (Input side) 5: 5 VDC
12: 12 VDC
24: 24 VDC
(c) Load Voltage A: AC type
(d) Load Current 03 : 3 A rms
Zero Cross Circuit Nil: No zero cross tyoe
(e) C: Zero cross type
(f) Varistor
Nil: No varistor type
V : Internal varistor type
(g) Input Terminal Distance Nil: 7.62 mm
L: 5.08 mm
SG Series
n FEATURES
l Conforms to UL, CSA Standards
l Slim, SIL Terminal Type
—Size: 9.0 (W) × 40.0 (L) × 20.0(H) mm
—Weight: approximately 13g
l High reliability, long life and maintenance free
l High isolation (between input and output)
—Dielectric stength: 2,500 Vrms
l Internal zero cross circuit type available
l Internal output surge absorber (varistor) type available.
l RoHS compliant since date code: 6703 (July 3rd, 2006)
Please see page 5 for more information
n ORDERING INFORMATION
SG – 12 A 03 C V L
[Example] (a) (b) (c) (d) (e) (f) (g)
SOLID STATE RELAY
MAXIMUM LOAD CURRENT 3 A
1
SG SERIES
2
■ SPECIFICATIONS
AC
Item Remarks
TYPE 3 A
INPUT side Nominal Voltage (DC) 3 V, 5 V, 12 V, 24 V
Operate Range ±20% of nominal voltage
Must Operate Voltage 80% of nominal voltage
Must Release Voltage Minimum 1 V
3VDCType 130Ω±10% 
5VDCType 330Ω±10% 
Input Impedance
12VDCType 1.0kΩ±10% 
24VDCType 2.2kΩ±10% 
OUTPUT side
Load Voltage Range 75 to 265 Vrms
Maximum Load Current 3.0 Arms
CHARACTERISTIC DATA
Minimum Load Current 10 mArms
1 Cycle Surge Current 132 A (60 Hz)
Max.
Off-state Leakage Current
2.5 mArms (at 100 Vrms 60 Hz)
5.0
mArms (at 200 Vrms 60 Hz)
Max. Off-state Voltage Drop 1.5 Vrms
at max. load current
Max. Operate Time at no zero cross type 1 ms
at zero cross type 1/2 cycle + 1 ms
Max. Release Time 1/2 cycle + 1 ms
InsulationResistance Minimum1,000MΩ(at500VDC) forinput-output
Dielectric Strength 2,500 Vrms for 1 minute for input-output
Operating Temperature Range –30°C to + 85°C
Storage Temperature Range –40°C to + 100°C
Case Color Black
Weight Approximately 13g
■ BLOCK DIAGRAM
LOAD INSULATION CIRCUITS Input/Output waveform
(resistive load)
AC Photo-triac coupler
2+
Input
terminal Input
circuit
Photo-triac coupler
1–
Output
terminal
Trigger circuit
Snubber
circuit
Varistor
~3
~4
ON
OFF
Source voltage
of load
Input signal
Load current
Item AC 3.0A type Note
Resistance (initial) Minimum1,000MΩ(500VDC) Input-output
Surge Voltage 2,500V rms 1 min.
n INSULATION
SG SERIES
3
■ CHARACTERISTIC DATA
SG-A03 (3.0A type)
020 40 60 80 100
0
0.5
1.0
1.5
2.0
2.5
3.0
Ambient Temperature (ºC)
Maximum Load Current (A)
Ambient Temperature vs. Maximum Load Current
-20
3.5
■ DIMENSIONS
●Dimensions ●Schematics
(BOTTOM VIEW)
●PCboardmounting
hole layout
(BOTTOM VIEW)
Unit: mm
SG-( ) A03 Type
2.8
0.5
9.0
+0
0.7
4.0
20.0
+0
40.0
+0
5.8410.16
12.7
7.62
SG-( ) A03L Type
2.8
0.5
9.0+0
0.7
4.0
20.0+0
40.0+0
5.84
10.16
12.7
5.08
123 4
-+~~
INPUT OUTPUT
1234
-+~~
INPUT OUTPUT
2.8
5.84
10.16
12.7
7.62
4-ø1.2
SG SERIES
4
■ NOTES
1. Polarity of terminals are pre-determined. Please design accordingly.
2. If using non-Varistor enclosure type please use Varistor type as in Figure 1.
SSR
2 3
14
Load
Varistor
Load
power
source
SG SERIES
5
1. General Information
l Relaysproducedafterthespecicdatecodethatisindicatedoneachdatasheetarelead-free
now. Most of our signal and power relays are lead-free. Please refer to Lead-Free Status Info.
(http://www.fujitsu.com/us/downloads/MICRO/fcai/relays/lead-free-letter.pdf)
l Lead free solder paste currently used in relays is Sn-3.0Ag-0.5Cu.
l All signal and most power relays also comply with RoHS. Please refer to individual data
sheets. Relays that are RoHS compliant do not contain the 5 hazardous materials that
are restricted by RoHS directive (lead, mercury, chromium IV, PBB, PBDE).
l
Ithasbeenveriedthatusinglead-freerelaysinleadedassemblyprocesswillnotcauseany
problems (compatible).
l “LF” is marked on each outer and inner carton. (No marking on individual relays).
l Toavoidleadedrelays(forlead-freesample,etc.)pleaseconsultwithareasalesofce.
l We will ship leaded relays as long as the leaded relay inventory exists.
Note: Cadmium was exempted from RoHS on October 21, 2005. (Amendment to Directive 2002/95/EC)
2. Recommended Lead Free Solder Prole
l Recommended solder paste Sn-3.0Ag-0.5Cu.
RoHS Compliance and Lead Free Relay Information
Reow Solder condition
3. Moisture Sensitivity
l Moisture Sensitivity Level standard is not applicable to electromechanical realys.
4. Tin Whisker
l Dipped SnAgCu solder is known as low risk tin whisker. No considerable length whisker was found by our in
house test.
We highly recommend that you conrm your actual solder conditions
Flow Solder condition:
Pre-heating: maximum120˚C
Soldering: dip within 5 sec. at
260˚Csolerbath
Solder by Soldering Iron:
Soldering Iron
Temperature: maximum360˚C
Duration: maximum 3 sec.
SG SERIES
6
Japan
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Tel: (81-3) 5449-7010
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Email: components@us.fujitsu.com
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Netherlands
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Fax: (31-23) 5560950
Email: info@fceu.fujitsu.com
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Singapore 118529
Tel: (65) 6375-8560
Fax: (65) 6273-3021
Email: fcal@fcal.fujitsu.com
Web: http://www.fujitsu.com/sg/services/micro/components/
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owners.
FujitsuComponentsAmericaoritsafliatesdonotwarrantthatthecontentofdatasheetiserrorfree.Inacontinuingefforttoimproveour
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Rev. January 18, 2008.