Overview
The L6221AD is a darlington Transistor made by STMicroelectronics in a SO-20 package with 20 pins. -40℃~+150℃ 1.8A 1V、1.2V、1.6V 1W 50V SO-20 Darlington Transistors ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L6221AD, from EasyEDA) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7295066).
Symbol
Footprint
Parameters
5- Collector - Emitter Voltage VCEO
- 50V
- Current - Collector(Ic)
- 1.8A
- Operating Temperature
- -40℃~+150℃
- Pd - Power Dissipation
- 1W
- Vce Saturation(VCE(sat))
- 1V, 1.6V, 1.2V
Order codes
1- L6221ADLCSC C7295066
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | OUT4 | Unspecified |
| 2 | CLAMPB | Unspecified |
| 3 | NC | Unspecified |
| 4 | OUT3 | Unspecified |
| 5 | GND | Unspecified |
| 6 | GND | Unspecified |
| 7 | OUT2 | Unspecified |
| 8 | NC | Unspecified |
| 9 | CLAMPA | Unspecified |
| 10 | OUT1 | Unspecified |
| 11 | IN1 | Unspecified |
| 12 | IN2 | Unspecified |
| 13 | NC | Unspecified |
| 14 | VS | Unspecified |
| 15 | GND | Unspecified |
| 16 | GND | Unspecified |
| 17 | ENABLE | Unspecified |
| 18 | NC | Unspecified |
| 19 | IN3 | Unspecified |
| 20 | IN4 | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/st/L6221AD" title="L6221AD in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/L6221AD.jpg" alt="L6221AD" width="1200" height="900">[](https://pcbkit.io/parts/st/L6221AD)Questions
Is there a KiCad symbol and footprint for the L6221AD?
Yes. The symbol is EasyEDA_Cloud:L6221AD and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the L6221AD?
SO-20, with 20 pins. Its footprint is drawn on this page.
Where is the L6221AD datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the L6221AD?
JLCPCB lists it as part C7295066, with 0 in stock; the sellers' links on this page open their listings.
What can replace the L6221AD?
Parts like it in the library: the E-L6221AD by STMicroelectronics and the L6221AD013 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
