

Overview
The TLP281-4 is an optocouplers Phototransistor Output made by Isocom Components in a SMD-16P package with 16 pins. SMD-16P Transistor, Photovoltaic Output Optoisolators ROHS.
PCBKit's library has its KiCad symbol (Optocouplers:Optocoupler x4 Type3, from CERN's library) and its footprint (ICs And Semiconductors SMD:SOIC127P700X210-16N, from CERN's library), ready for a KiCad board. JLCPCB lists it (part C433438). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Order codes
1- TLP281-4LCSC C433438
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | A | Input |
| 2 | K | Input |
| 3 | A | Input |
| 4 | K | Input |
| 5 | A | Input |
| 6 | K | Input |
| 7 | A | Input |
| 8 | K | Input |
| 9 | E | Open emitter |
| 10 | C | Open collector |
| 11 | E | Open emitter |
| 12 | C | Open collector |
| 13 | E | Open emitter |
| 14 | C | Open collector |
| 15 | E | Open emitter |
| 16 | C | Open collector |
Open-source boards using it
All 2- 2 layers129.5 × 72.6 mm

- 2 layers147 × 55 mm

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<iframe src="https://pcbkit.io/embed/parts/isocom-components/TLP281-4" title="TLP281-4 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/TLP281-4.jpg" alt="TLP281-4" width="1200" height="900">[](https://pcbkit.io/parts/isocom-components/TLP281-4)Questions
Is there a KiCad symbol and footprint for the TLP281-4?
Yes. The symbol is Optocouplers:Optocoupler x4 Type3 and the footprint ICs And Semiconductors SMD:SOIC127P700X210-16N, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TLP281-4?
SMD-16P, with 16 pins. Its footprint is drawn on this page.
Where is the TLP281-4 datasheet?
Isocom Components publishes it: the Datasheet link on this page opens it.
Where can I order the TLP281-4?
JLCPCB lists it as part C433438, with 0 in stock; the sellers' links on this page open their listings.
Which open-source boards use the TLP281-4?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.