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IS121A on a board, in 3D

IS121A

Isocom Components

Extended
DatasheetJLCPCBLCSCisocom-components/IS121A
Category
Transistor, Photovoltaic Output Optoisolators
Package
SMD-4P
Pins
4

Overview

The IS121A is a transistor, Photovoltaic Output Optoisolator made by Isocom Components in a SMD-4P package with 4 pins.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:IS121A, from EasyEDA) and its footprint (EasyEDA_Cloud:SOP-4_L4.4-W3.9-P2.54-LS7.0-BL, from EasyEDA), ready for a KiCad board. 25 are in stock at JLCPCB (part C6176570).

Symbol

AN1CA2EM3COL4
EasyEDA_Cloud:IS121AFrom EasyEDA

Footprint

1234
EasyEDA_Cloud:SOP-4_L4.4-W3.9-P2.54-LS7.0-BLFrom EasyEDA

Parameters

16
Current Transfer Ratio (CTR) Maximum/Saturation Value
600%
Current Transfer Ratio (CTR) Minimum
50%
Fall time
3us
Forward Current(If)
50mA
Input type
DC
Isolation Voltage(Vrms)
3.75kV
Load Voltage
80V
Number of Outputs
1
Operating Temperature
-55℃~+110℃
Output Current
50mA
Output Type
Phototransistor
Reverse Voltage
6V
Rise time
4us
Total Power Dissipation(Pd)
170mW
Vce Saturation(VCE(sat))
400mV@20mA,1mA
Voltage - Forward(Vf)
1.2V

Order codes

1

Pinout

4
The pins of the IS121A
PinNameType
1ANUnspecified
2CAUnspecified
3EMUnspecified
4COLUnspecified

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A picture that opens the part, for a README
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Questions

Is there a KiCad symbol and footprint for the IS121A?

Yes. The symbol is EasyEDA_Cloud:IS121A and the footprint EasyEDA_Cloud:SOP-4_L4.4-W3.9-P2.54-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 IS121A?

SMD-4P, with 4 pins. Its footprint is drawn on this page.

Where is the IS121A datasheet?

Isocom Components publishes it: the Datasheet link on this page opens it.

Where can I order the IS121A?

JLCPCB lists it as part C6176570, with 25 in stock; the sellers' links on this page open their listings.

What can replace the IS121A?

Parts like it in the library: the OR-357C-S-TP-G-(GK) by Orient, the OR-357D-S-TP-G by Orient, the VOM617A-4T by Vishay Intertechnology and the VOM617A-3T by Vishay Intertechnology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8