
Overview
The LL4148 is a switching Diode made by Yangzhou Yangjie Electronic Technology in a LL-34 package with 2 pins. 1 Independent 100V 1V@50mA 2A 300mA 4ns 500mW 5uA@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. 81,702 are in stock at JLCPCB (part C211750).
Symbol
Footprint
Parameters
8- Current - Rectified
- 300mA
- Diode Configuration
- 1 Independent
- Non-Repetitive Peak Forward Surge Current
- 2A
- Pd - Power Dissipation
- 500mW
- Reverse Leakage Current (Ir)
- 5uA@75V
- Reverse Recovery Time (trr)
- 4ns
- Voltage - DC Reverse(Vr)
- 100V
- Voltage - Forward(Vf@If)
- 1V@50mA
Order codes
1- LL4148LCSC C211750
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/yangjie/LL4148" title="LL4148 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/yangjie/LL4148.jpg" alt="LL4148" width="1200" height="900">[](https://pcbkit.io/parts/yangjie/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?
Yangzhou Yangjie Electronic Technology publishes it: the Datasheet link on this page opens it.
Where can I order the LL4148?
JLCPCB lists it as part C211750, with 81,702 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 LGE, the LL4448-GS08 by Vishay Intertechnology, the LL4148-M-18 by Vishay Intertechnology and the BAV103 by Guangdong Hottech. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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