Overview
The TLP321 is a transistor, Photovoltaic Output Optoisolator made by Isocom Components in a DIP-4 package with 5 pins.
PCBKit's library has its footprint (Package_DIP:DIP-4_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C6178748).
Symbol
The library has no symbol for this part yet.
Footprint
Order codes
1- TLP321LCSC C6178748
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/isocom-components/TLP321" title="TLP321 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/TLP321.jpg" alt="TLP321" width="1200" height="900">[](https://pcbkit.io/parts/isocom-components/TLP321)Questions
Is there a KiCad symbol and footprint for the TLP321?
Yes. 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 TLP321?
DIP-4, with 5 pins. Its footprint is drawn on this page.
Where is the TLP321 datasheet?
Isocom Components publishes it: the Datasheet link on this page opens it.
Where can I order the TLP321?
JLCPCB lists it as part C6178748, with 0 in stock; the sellers' links on this page open their listings.
What can replace the TLP321?
Parts like it in the library: the K10101C by Cosmo Electronics, the ORPC-817C by Orient, the K10101B by Cosmo and the TLP621GB-1(UMW) by UMW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
K10101C
DIP-4-55℃~+115℃ 1 1.2V 100mV@20mA,1mA 200mW 3us 4us 50mA 50mA 5kV 6V 80V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSCosmo ElectronicsTransistor, Photovoltaic Output OptoisolatorsORPC-817C
DIP-4-30℃~+100℃ 1 1.2V 100mV@1mA,20mA 35V 3us 4us@2mA,100Ω 50% 50mA 50mA 5kV 600% 6V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSOrientTransistor, Photovoltaic Output OptoisolatorsK10101B
DIP-4-55℃~+115℃ 1 1.2V 130% 18us 18us 200mV@20mA,1mA 200mW 260% 50mA 50mA 5kV 6V 80V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSCosmoTransistor, Photovoltaic Output OptoisolatorsTLP621GB-1(UMW)
DIP-4-55℃~+100℃ 1 1.15V 2us@2mA,100Ω 3us@2mA,100Ω 400mV@2.4mA,8mA 50mA 55V 5V 5kV DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSUMWTransistor, Photovoltaic Output OptoisolatorsPC814X1CSZ9F
DIP-4-30℃~+100℃ 1.2V 100mV@20mA,1mA 20% 200mW 300% 3us 4us 50mA 50mA 5kV 80V AC,DC DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSSharp MicroelectronicsTransistor, Photovoltaic Output OptoisolatorsK10101C(PC817C)
DIP-4-55℃~+115℃ 1 1.2V 18us 200mV@20mA,1mA 3us 50% 50mA 50mA 5kV 600% 6V 80V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSCosmoTransistor, Photovoltaic Output OptoisolatorsMPC817C1-FGV
DIP-4-55℃~+110℃ 1.24V 200% 200mW 35V 400% 50mA 5kV 60mA 60mV@20mA,1mA 6V 6us 8us DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSmiracleTransistor, Photovoltaic Output OptoisolatorsCYPC817B
DIP-4-55℃~+110℃ 1 1.2V 200mV@50mA,2mA 200mW 3us 4us 50mA 50mA 5kV 600% 6V 80% 80V DC Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSOCICTransistor, Photovoltaic Output Optoisolators