
Overview
The TLP281 is an optocouplers Phototransistor Output made by Isocom Components in a SMD-4P package with 4 pins. -55℃~+110℃ 1.2V 100mV@10mA,1mA 200mW 3.75kV 50% 50mA 50mA 600% 6V 80V DC Phototransistor SMD-4P Transistor, Photovoltaic Output Optoisolators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Pro:TLP281, from EasyEDA Pro) and its footprint (EasyEDA_Pro:smd-4_l2.7-w4.4-p1.27-ls7.0-bl, from EasyEDA Pro), ready for a KiCad board. JLCPCB lists it (part C433437).
Symbol
Footprint
Parameters
13- Current Transfer Ratio (CTR) Maximum/Saturation Value
- 600%
- Current Transfer Ratio (CTR) Minimum
- 50%
- Forward Current(If)
- 50mA
- Input type
- DC
- Isolation Voltage(Vrms)
- 3.75kV
- Load Voltage
- 80V
- Operating Temperature
- -55℃~+110℃
- Output Current
- 50mA
- Output Type
- Phototransistor
- Reverse Voltage
- 6V
- Total Power Dissipation(Pd)
- 200mW
- Vce Saturation(VCE(sat))
- 100mV@10mA,1mA
- Voltage - Forward(Vf)
- 1.2V
Order codes
1- TLP281LCSC C433437
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Unspecified |
| 2 | 2 | Unspecified |
| 3 | 3 | Unspecified |
| 4 | 4 | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/isocom-components/TLP281" title="TLP281 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.jpg" alt="TLP281" width="1200" height="900">[](https://pcbkit.io/parts/isocom-components/TLP281)Questions
Is there a KiCad symbol and footprint for the TLP281?
Yes. The symbol is EasyEDA_Pro:TLP281 and the footprint EasyEDA_Pro:smd-4_l2.7-w4.4-p1.27-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 TLP281?
SMD-4P, with 4 pins. Its footprint is drawn on this page.
Where is the TLP281 datasheet?
Isocom Components publishes it: the Datasheet link on this page opens it.
Where can I order the TLP281?
JLCPCB lists it as part C433437, with 0 in stock; the sellers' links on this page open their listings.