

Overview
The ITR20403 is a photointerrupters Slot Type Transistor Output made by Everlight Electronics in a DIP-4 package with 4 pins. 20mA 3mm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Pro:ITR20403, from EasyEDA Pro) and its footprint (Package_DIP:DIP-4_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. 7 are in stock at JLCPCB (part C5135). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Parameters
14- Dark Current
- 100nA@Vce=20V
- Fall Time
- 15us
- Height
- 4.2mm
- Length
- 6.4mm
- Load Voltage
- 30V
- Operating Temperature
- -25℃~+80℃
- Output Current
- 20mA
- Peak Wavelength
- 940nm
- Pitch
- 5mm
- Rise Time
- 15us
- Slit Width
- 0.45mm
- Slot Width
- 3mm
- Voltage - Forward(Vf)
- 1.23V@If=20mA
- Width
- 5.4mm
Order codes
1- ITR20403LCSC C5135
Pinout
4| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Unspecified |
| 2 | 2 | Unspecified |
| 3 | 3 | Unspecified |
| 4 | 4 | Unspecified |
Open-source boards using it
All 2- 2 layers10 × 34 mm

- 2 layers19.5 × 10.2 mm

Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/everlight/ITR20403" title="ITR20403 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/ITR20403.jpg" alt="ITR20403" width="1200" height="900">[](https://pcbkit.io/parts/everlight/ITR20403)Questions
Is there a KiCad symbol and footprint for the ITR20403?
Yes. The symbol is EasyEDA_Pro:ITR20403 and the footprint Package_DIP:DIP-4_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ITR20403?
DIP-4, with 4 pins. Its footprint is drawn on this page.
Where is the ITR20403 datasheet?
Everlight Electronics publishes it: the Datasheet link on this page opens it.
Where can I order the ITR20403?
JLCPCB lists it as part C5135, with 7 in stock; the sellers' links on this page open their listings.
What can replace the ITR20403?
Parts like it in the library: the RPI-352 by ROHM Semiconductor, the ITR9606-F by Everlight Electronics, the ITR8104 by Everlight Electronics and the RPI-222 by ROHM Semiconductor. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ITR20403?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8RPI-352
DIP-4-25℃~+85℃ 1.3V 30mA 3mm 800nm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSROHM SemiconductorPhotointerrupters - Slot Type - Transistor OutputITR9606-F
DIP-420mA 5mm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSEverlight ElectronicsPhotointerrupters - Slot Type - Transistor OutputITR8104
DIP-4DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSEverlight ElectronicsPhotointerrupters - Slot Type - Transistor OutputRPI-222
DIP-4-25℃~+85℃ 1.3V 2mm 30mA DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSROHM SemiconductorPhotointerrupters - Slot Type - Transistor OutputRPI-243
DIP-4-25℃~+85℃ 0.4mm 1.3V 2mm 800nm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSROHM SemiconductorPhotointerrupters - Slot Type - Transistor OutputGP1S093HCZ0F
DIP-420mA 2mm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSSharp MicroelectronicsPhotointerrupters - Slot Type - Transistor OutputGP1S094HCZ0F
DIP-4-25℃~+85℃ 0.3mm 1.2V 2.6mm 20mA 3mm 4.8mm 5.5mm 50us 50us 950nm DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSSharp MicroelectronicsPhotointerrupters - Slot Type - Transistor OutputGP1S196HCZ0F
DIP-40.3mm 1.1mm 1.2V 2.7mm 2mm 3.1mm 50us 50us DIP-4 Photointerrupters - Slot Type - Transistor Output ROHSSharp MicroelectronicsPhotointerrupters - Slot Type - Transistor Output