Skip to the content
PCBKitNew board
CDLL3821 on a board, in 3D

CDLL3821

Microchip Technology

100uA@1V 10Ω 1W 3.3V DO-213AB Zener Diodes

Extended
DatasheetJLCPCBLCSCmicrochip/CDLL3821
Category
Zener Diodes
Package
DO-213AB
Pins
5

Overview

The CDLL3821 is a zener Diode made by Microchip Technology in a DO-213AB package with 2 pins. 100uA@1V 10Ω 1W 3.3V DO-213AB Zener Diodes.

PCBKit's library has its KiCad symbol (Device:D_Zener, from KiCad's library) and its footprint (Diode_SMD:D_MELF, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C6529299).

Symbol

Device:D_ZenerFrom KiCad's library

Footprint

12
Diode_SMD:D_MELFFrom KiCad's library

Parameters

4
Impedance(Zzt)
10Ω
Pd - Power Dissipation
1W
Reverse Leakage Current (Ir)
100uA@1V
Zener Voltage(Nom)
3.3V

Order codes

1

Pinout

2
The pins of the CDLL3821
PinNameType
1KPassive
2APassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/microchip/CDLL3821" title="CDLL3821 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/microchip/CDLL3821.jpg" alt="CDLL3821" width="1200" height="900">
A picture that opens the part, for a README
[![CDLL3821](https://pcbkit.io/embed/parts/microchip/CDLL3821.jpg?size=s)](https://pcbkit.io/parts/microchip/CDLL3821)

Questions

Is there a KiCad symbol and footprint for the CDLL3821?

Yes. The symbol is Device:D_Zener and the footprint Diode_SMD:D_MELF, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CDLL3821?

DO-213AB, with 2 pins. Its footprint is drawn on this page.

Where is the CDLL3821 datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the CDLL3821?

JLCPCB lists it as part C6529299, with 0 in stock; the sellers' links on this page open their listings.

What can replace the CDLL3821?

Parts like it in the library: the ZM4728A by Slkor, the ZM4728APF by STMicroelectronics, the ZM4728A-TD by TDSEMIC and the ZM4728A by Zhengxin. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8