
Overview
The 4N25 is a transistor, Photovoltaic Output Optoisolator made by Everlight Electronics in a DIP-6 package with 6 pins. -55℃~+110℃ 1.2V 20% 200mW 500mV@50mA,2mA 5kV 60mA 6V 80V DC Phototransistor DIP-6 Transistor, Photovoltaic Output Optoisolators ROHS.
PCBKit's library has its KiCad symbol (Isolator:4N25, from KiCad's library) and its footprint (Package_DIP:DIP-6_W7.62mm, from KiCad's library), ready for a KiCad board. 152 are in stock at JLCPCB (part C115480).
Symbol
Footprint
Parameters
16- Current Transfer Ratio (CTR) Minimum
- 20%
- Fall time
- 3us
- Forward Current(If)
- 60mA
- Input type
- DC
- Isolation Voltage(Vrms)
- 5kV
- Load Voltage
- 80V
- Number of Outputs
- 1
- Operating Temperature
- -55℃~+110℃
- Output Current
- 2mA
- Output Type
- Phototransistor
- Product Type
- TransistorOptocouplers
- Reverse Voltage
- 6V
- Rise time
- 10us
- Total Power Dissipation(Pd)
- 200mW
- Vce Saturation(VCE(sat))
- 500mV@50mA,2mA
- Voltage - Forward(Vf)
- 1.2V
Order codes
1- 4N25LCSC C115480
Pinout
6| Pin | Name | Type |
|---|---|---|
| 1 | — | Passive |
| 2 | — | Passive |
| 3 | NC | Not connected |
| 4 | — | Passive |
| 5 | — | Passive |
| 6 | — | Passive |
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<iframe src="https://pcbkit.io/embed/parts/everlight/4N25" title="4N25 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/everlight/4N25.jpg" alt="4N25" width="1200" height="900">[](https://pcbkit.io/parts/everlight/4N25)Questions
Is there a KiCad symbol and footprint for the 4N25?
Yes. The symbol is Isolator:4N25 and the footprint Package_DIP:DIP-6_W7.62mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 4N25?
DIP-6, with 6 pins. Its footprint is drawn on this page.
Where is the 4N25 datasheet?
Everlight Electronics publishes it: the Datasheet link on this page opens it.
Where can I order the 4N25?
JLCPCB lists it as part C115480, with 152 in stock; the sellers' links on this page open their listings.
What can replace the 4N25?
Parts like it in the library: the 4N35 by Everlight Electronics, the H11AA1M by onsemi, the 4N25 by UMW and the 4N35 by UMW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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