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BAS21 on a board, in 3D

BAS21

ALJ

SOT-23 Switching Diodes ROHS

Extended
JLCPCBLCSCalj/BAS21
Category
Switching Diodes
Package
SOT-23
Pins
5

Overview

The BAS21 is a switching Diode made by ALJ in a SOT-23 package with 3 pins. SOT-23 Switching Diodes ROHS.

PCBKit's library has its KiCad symbol (Diode:BAS21, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23, from KiCad's library), ready for a KiCad board. 14,500 are in stock at JLCPCB (part C55258628).

Symbol

Diode:BAS21From KiCad's library

Footprint

123
Package_TO_SOT_SMD:SOT-23From KiCad's library

Order codes

1

Pinout

3
The pins of the BAS21
PinNameType
1APassive
2NCNot connected
3KPassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/alj/BAS21" title="BAS21 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/alj/BAS21.jpg" alt="BAS21" width="1200" height="900">
A picture that opens the part, for a README
[![BAS21](https://pcbkit.io/embed/parts/alj/BAS21.jpg?size=s)](https://pcbkit.io/parts/alj/BAS21)

Questions

Is there a KiCad symbol and footprint for the BAS21?

Yes. The symbol is Diode:BAS21 and the footprint Package_TO_SOT_SMD:SOT-23, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BAS21?

SOT-23, with 3 pins. Its footprint is drawn on this page.

Where can I order the BAS21?

JLCPCB lists it as part C55258628, with 14,500 in stock; the sellers' links on this page open their listings.

What can replace the BAS21?

Parts like it in the library: the BAV99 by Nexperia, the BAV99 by JSMSEMI, the BAV99 by hongjiacheng and the BAV99LT1G by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8