
Overview
The LLDB4 is a trigger Diode made by MSKSEMI in a LL-34 package with 2 pins. -40℃~+125℃ 10uA 2A 2us 35V~45V 3V 50uA 5V 5V LL-34 Trigger Diodes ROHS.
PCBKit's library has its KiCad symbol (Device:D, from KiCad's library) and its footprint (Diode_SMD:D_MiniMELF, from KiCad's library), ready for a KiCad board. 21 are in stock at JLCPCB (part C5359965).
Symbol
Footprint
Parameters
9- Breakover Current (Ibo)
- 50uA
- Breakover Voltage Symmetry
- 3V
- Breakover Voltage VBO(Range Value)
- 35V~45V
- Dynamic Breakover Voltage
- 5V
- Leak Current
- 10uA
- Operating Junction Temperature Range
- -40℃~+125℃
- Output Voltage
- 5V
- Repetitive Peak On-state Current (Itrm)
- 2A
- Rise Time(tr)
- 2us
Order codes
1- LLDB4LCSC C5359965
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/msksemi/LLDB4" title="LLDB4 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/msksemi/LLDB4.jpg" alt="LLDB4" width="1200" height="900">[](https://pcbkit.io/parts/msksemi/LLDB4)Questions
Is there a KiCad symbol and footprint for the LLDB4?
Yes. The symbol is Device:D 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 LLDB4?
LL-34, with 2 pins. Its footprint is drawn on this page.
Where is the LLDB4 datasheet?
MSKSEMI publishes it: the Datasheet link on this page opens it.
Where can I order the LLDB4?
JLCPCB lists it as part C5359965, with 21 in stock; the sellers' links on this page open their listings.
What can replace the LLDB4?
Parts like it in the library: the LLDB3 by LGE, the LLDB3 by Slkor, the LLDB3 by YFW and the LLDB3 by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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