Skip to the content
PCBKitNew board
ZM4731A, in 3D

ZM4731A

STMicroelectronics

1 Independent 1W 4.3V 400Ω 50uA@1V 9Ω ±5% LL-41 Zener Diodes ROHS

Extended
Category
Zener Diodes
Package
LL-41
Pins
2

Overview

The ZM4731A is a zener Diode made by STMicroelectronics in a LL-41 package with 2 pins. 1 Independent 1W 4.3V 400Ω 50uA@1V 9Ω ±5% LL-41 Zener Diodes ROHS.

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. 29 are in stock at JLCPCB (part C52467).

Symbol

Device:D_ZenerFrom KiCad's library

Footprint

12
Diode_SMD:D_MELFFrom KiCad's library

Parameters

7
Diode Configuration
1 Independent
Impedance(Zzk)
400Ω
Impedance(Zzt)
9Ω
Pd - Power Dissipation
1W
Reverse Leakage Current (Ir)
50uA@1V
Tolerance
±5%
Zener Voltage(Nom)
4.3V

Order codes

1

Pinout

2
The pins of the ZM4731A
PinNameType
1KPassive
2APassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/ZM4731A" title="ZM4731A 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/st/ZM4731A.jpg" alt="ZM4731A" width="1200" height="900">
A picture that opens the part, for a README
[![ZM4731A](https://pcbkit.io/embed/parts/st/ZM4731A.jpg?size=s)](https://pcbkit.io/parts/st/ZM4731A)

Questions

Is there a KiCad symbol and footprint for the ZM4731A?

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 ZM4731A?

LL-41, with 2 pins. Its footprint is drawn on this page.

Where is the ZM4731A datasheet?

STMicroelectronics publishes it: the Datasheet link on this page opens it.

Where can I order the ZM4731A?

JLCPCB lists it as part C52467, with 29 in stock; the sellers' links on this page open their listings.

What can replace the ZM4731A?

Parts like it in the library: the DL4731A by LGE, the ZM4731A by Slkor, the ZM4731APF-M by STMicroelectronics and the ZM4731A-TD by TDSEMIC. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8