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PDF ( 数据手册 , 数据表 ) S108T02

零件编号 S108T02
描述 Low profile SIP 4pin Triac output SSR
制造商 Sharp
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S108T02 数据手册, 描述, 功能
S108T02 Series
S208T02 Series
Non-zero cross type is also available. (S108T01 Series/
S208T01 Series)
S108T02 Series
S208T02 Series
IT(rms)8A, Zero Cross type
Low profile SIP 4pin
Triac output SSR
Description
S108T02 Series and S208T02 Series Solid State
Relays (SSR) are an integration of an infrared emitting
diode (IRED), a Phototriac Detector and a main output
Triac. These devices are ideally suited for controlling
high voltage AC loads with solid state reliability while
providing 3.0kV isolation (Viso(rms)) from input to out-
put.
Features
1. Output current, IT(rms)8.0A
2. Zero crossing functionary (VOX : MAX. 35V)
3. Slim 4 pin low profile SIP package
4. High repetitive peak off-state voltage
(VDRM : 600V, S208T02 Series)
(VDRM : 400V, S108T02 Series)
5. High isolation voltage between input and output
(Viso(rms) : 3.0kV)
6. Lead-free terminal components are also available
(see Model Line-up section in this datasheet)
7. Screw hole for heat sink
Agency approvals/Compliance
1. Package resin : UL flammability grade (94V-0)
Applications
1. Isolated interface between high voltage AC devices
and lower voltage DC control circuitry.
2. Switching motors, fans, heaters, solenoids, and
valves.
3. Power control in applications such as lighting and
temperature control equipment.
Notice The content of data sheet is subject to change without prior notice.
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Sheet No.: D4-A01801EN
1 Date Apr. 28. 2004
© SHARP Corporation







S108T02 pdf, 数据表
S108T02 Series
S208T02 Series
Design Considerations
Recommended Operating Conditions
Input
Output
Parameter
Input signal current at ON state
Input signal current at OFF state
S108T02
Load supply voltage
S208T02
Load supply current
Symbol
IF(ON)
IF(OFF)
VOUT(rms)
IOUT(rms)
Frequency
f
Operating temperature
Topr
() See Fig.2 about derating curve (IT(rms) vs. ambient temperature).
Conditions
Locate snubber circuit between output terminals
(Cs=0.022µF, Rs=47)
MIN.
16
0
80
80
0.1
47
20
MAX.
24
0.1
120
240
IT(rms)
×80%()
63
80
Unit
mA
mA
V
mA
Hz
˚C
Design guide
In order for the SSR to turn off, the triggering current (lF) must be 0.1mA or less.
When the input current (IF) is below 0.1mA, the output Triac will be in the open circuit mode. However, if the
voltage across the Triac, VD, increases faster than rated dV/dt, the Triac may turn on. To avoid this situation,
please incorporate a snubber circuit. Due to the many different types of load that can be driven, we can
merely recommend some circuit vales to start with : Cs=0.022µF and Rs=47. The operation of the SSR
and snubber circuit should be tested and if unintentional switching occurs, please adjust the snubber circuit
component values accordingly.
When making the transition from On to Off state, a snubber circuit should be used ensure that sudden drops
in current are not accompanied by large instantaneous changes in voltage across the Triac.
This fast change in voltage is brought about by the phase difference between current and voltage.
Primarily, this is experienced in driving loads which are inductive such as motors and solenoids.
Following the procedure outlined above should provide sufficient results.
For over voltage protection, a Varistor may be used.
Any snubber or Varistor used for the above mentioned scenarios should be located as close to the main out-
put triac as possible.
Particular attention needs to be paid when utilizing SSRs that incorporate zero crossing circuitry.
If the phase difference between the voltage and the current at the output pins is large enough, zero crossing
type SSRs cannot be used. The result, if zero crossing SSRs are used under this condition, is that the SSR
may not turn on and off irregardless of the input current. In this case, only a non zero cross type SSR should
be used in combination with the above mentioned snubber circuit selection process.
The load current should be within the bounds of derating curve. (Refer to Fig.2)
Also, please use the optional heat sink when necessary.
In case the optional heat sink is used and the isolation voltage between the device and the optional heat sink
is needed, please locate the insulation sheet between the device and the heat sink.
When the optional heat sink is equipped, please set up the M3 screw-fastening torque at 0.3 to 0.5N•m.
In order to dissipate the heat generated from the inside of device effectively, please follow the below sugges-
tions.
Sheet No.: D4-A01801EN
8














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