Skip to the content
PCBKitNew board
LL4148, in 3D

LL4148

STMicroelectronics

1 Independent 1V@10mA 200mA 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHS

Extended
DatasheetJLCPCBLCSCst/LL4148
Category
Switching Diodes
Package
LL-34
Pins
2

Overview

The LL4148 is a switching Diode made by STMicroelectronics in a LL-34 package with 2 pins. 1 Independent 1V@10mA 200mA 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHS.

PCBKit's library has its KiCad symbol (Diode:LL4148, from KiCad's library) and its footprint (Diode_SMD:D_MiniMELF, from KiCad's library), ready for a KiCad board. 13 are in stock at JLCPCB (part C9808).

Symbol

Diode:LL4148From KiCad's library

Footprint

12
Diode_SMD:D_MiniMELFFrom KiCad's library

From the datasheet

4
Reverse voltage, most
75 V · reverse voltage, absolute maximum · p. 1
Forward current, most
200 mA · average rectified forward current, Ta = 25 °C, max · p. 1
Junction, hottest
175 °C · junction temperature, absolute maximum · p. 1
Forward voltage
1 V · at IF = 10 mA, Ta = 25 °C, max · p. 2

Parameters

10
Current - Rectified
200mA
Diode Configuration
1 Independent
Junction Temperature(Max)
175℃
Operating Junction Temperature Range
+175℃@(Tj)
Pd - Power Dissipation
500mW
Reverse Leakage Current (Ir)
5uA@75V
Reverse Recovery Time (trr)
4ns
Voltage - DC Reverse(Vr)
75V
Voltage - Forward(Vf)
1V
Voltage - Forward(Vf@If)
1V@10mA

Order codes

2

Pinout

2
The pins of the LL4148
PinNameType
1KPassive
2APassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/LL4148" title="LL4148 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/LL4148.jpg" alt="LL4148" width="1200" height="900">
A picture that opens the part, for a README
[![LL4148](https://pcbkit.io/embed/parts/st/LL4148.jpg?size=s)](https://pcbkit.io/parts/st/LL4148)

Questions

Is there a KiCad symbol and footprint for the LL4148?

Yes. The symbol is Diode:LL4148 and the footprint Diode_SMD:D_MiniMELF, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LL4148?

LL-34, with 2 pins. Its footprint is drawn on this page.

Where is the LL4148 datasheet?

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

Where can I order the LL4148?

JLCPCB lists it as part C9808, with 13 in stock; the sellers' links on this page open their listings.

What can replace the LL4148?

Parts like it in the library: the LL4148 by MDD, the LL4148PF by STMicroelectronics, the LL4148-GS08 by Vishay Intertechnology and the LL4148 by LGE. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8