Overview
The SIT3491ISO is an isolated RS 485, 422 Transceiver made by SIT in a SOIC-16WB package with 16 pins. -40℃~+125℃ 1 1 100kV/us 16Mbps 2.5V~5.5V 256 4.5V~5.5V 5000 Fail-safe circuit、Low-power standby Full-Duplex ±15kV SOIC-16WB Isolated RS-485/422 Transceivers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ISO3080DWG4, from EasyEDA) and its footprint (EasyEDA_Cloud:SOIC-16_L10.3-W7.4-P1.27-LS10.3-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C3000002).
Symbol
Footprint
Parameters
11- CMTI(kV/us)
- 100kV/us
- Communication Mode
- Full-Duplex
- Data Rate(Max)
- 16Mbps
- ESD Protect
- ±15kV
- Isolation Voltage(Vrms)
- 5000
- Number of Drivers
- 1
- Number of Nodes
- 256
- Number of Receivers
- 1
- Operating Temperature
- -40℃~+125℃
- Voltage - Supply (Bus)
- 4.5V~5.5V
- Voltage - Supply (Logic)
- 2.5V~5.5V
Order codes
1- SIT3491ISOLCSC C3000002
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | VCC1 | Unspecified |
| 2 | GND1 | Unspecified |
| 3 | R | Unspecified |
| 4 | RE# | Unspecified |
| 5 | DE | Unspecified |
| 6 | D | Unspecified |
| 7 | GND1 | Unspecified |
| 8 | GND1 | Unspecified |
| 9 | GND2 | Unspecified |
| 10 | GND2 | Unspecified |
| 11 | Y | Unspecified |
| 12 | Z | Unspecified |
| 13 | B | Unspecified |
| 14 | A | Unspecified |
| 15 | GND2 | Unspecified |
| 16 | VCC2 | Unspecified |
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Is there a KiCad symbol and footprint for the SIT3491ISO?
Yes. The symbol is EasyEDA_Cloud:ISO3080DWG4 and the footprint EasyEDA_Cloud:SOIC-16_L10.3-W7.4-P1.27-LS10.3-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SIT3491ISO?
SOIC-16WB, with 16 pins. Its footprint is drawn on this page.
Where is the SIT3491ISO datasheet?
SIT publishes it: the Datasheet link on this page opens it.
Where can I order the SIT3491ISO?
JLCPCB lists it as part C3000002, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SIT3491ISO?
Parts like it in the library: the TPT7482-SOBR by 3PEAK. Check their datasheets: a part that fits the footprint may still differ in its ratings.
