
Overview
The IS181A is a transistor, Photovoltaic Output Optoisolator made by Isocom Components in a SMD-4P package with 4 pins.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:VO615A-3X018T, from EasyEDA) and its footprint (EasyEDA_Cloud:SOP-4_L3.9-W4.4-P2.54-LS7.0-BL, from EasyEDA), ready for a KiCad board. 5 are in stock at JLCPCB (part C6176577).
Symbol
Footprint
Parameters
15- Current Transfer Ratio (CTR) Maximum/Saturation Value
- 600%
- Current Transfer Ratio (CTR) Minimum
- 50%
- Fall time
- 3us
- Forward Current(If)
- 50mA
- Input type
- DC
- Isolation Voltage(Vrms)
- 3.75kV
- Load Voltage
- 80V
- Number of Outputs
- 1
- Operating Temperature
- -55℃~+100℃
- Output Current
- 50mA
- Output Type
- Phototransistor
- Reverse Voltage
- 6V
- Rise time
- 4us
- Vce Saturation(VCE(sat))
- 200mV@20mA,1mA
- Voltage - Forward(Vf)
- 1.2V
Order codes
1- IS181ALCSC C6176577
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | A | Unspecified |
| 2 | C | Unspecified |
| 3 | EM | Unspecified |
| 4 | COL | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/isocom-components/IS181A" title="IS181A in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/isocom-components/IS181A.jpg" alt="IS181A" width="1200" height="900">[](https://pcbkit.io/parts/isocom-components/IS181A)Questions
Is there a KiCad symbol and footprint for the IS181A?
Yes. The symbol is EasyEDA_Cloud:VO615A-3X018T and the footprint EasyEDA_Cloud:SOP-4_L3.9-W4.4-P2.54-LS7.0-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the IS181A?
SMD-4P, with 4 pins. Its footprint is drawn on this page.
Where is the IS181A datasheet?
Isocom Components publishes it: the Datasheet link on this page opens it.
Where can I order the IS181A?
JLCPCB lists it as part C6176577, with 5 in stock; the sellers' links on this page open their listings.
What can replace the IS181A?
Parts like it in the library: the VOM617AT by Vishay Intertechnology, the IS181GR by Isocom Components and the OR-357D-TP-G by Orient. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
3VOM617AT
SOP-4-2.54mm-55℃~+110℃ 1.1V 120mV@10mA,2.5mA 170mW 3.75kV 3us 3us 50% 50mA 600% 60mA 6V 80V DC Phototransistor SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHSVishay IntertechnologyTransistor, Photovoltaic Output OptoisolatorsIS181GR
SOP-4-2.54mm-55℃~+110℃ 1 1.2V 200mV@1mA,20mA 3.75kV 300% 3us 4us@2mA,100Ω 50mA 50mA 600% 6V 80V DC Phototransistor SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHSIsocom ComponentsTransistor, Photovoltaic Output OptoisolatorsOR-357D-TP-G
SOP-4-2.54mm-55℃~+110℃ 1 1.2V 100mV@1mA,20mA 3.75kV 3us@2mA,100Ω 4us@2mA,100Ω 50mA 6V 80V DC Phototransistor SOP-4-2.54mm Transistor, Photovoltaic Output Optoisolators ROHSOrientTransistor, Photovoltaic Output Optoisolators