
Overview
The TMMDB3 is a trigger Diode made by STMicroelectronics in a MiniMELF package with 2 pins. -40℃~+125℃@(Tj) 28V~36V 2A 2us 32V 50uA MiniMELF 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. JLCPCB lists it (part C2802532).
Symbol
Footprint
Order codes
1- TMMDB3LCSC C2802532
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
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<iframe src="https://pcbkit.io/embed/parts/st/TMMDB3" title="TMMDB3 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/TMMDB3.jpg" alt="TMMDB3" width="1200" height="900">[](https://pcbkit.io/parts/st/TMMDB3)Questions
Is there a KiCad symbol and footprint for the TMMDB3?
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 TMMDB3?
MiniMELF, with 2 pins. Its footprint is drawn on this page.
Where is the TMMDB3 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the TMMDB3?
JLCPCB lists it as part C2802532, with 0 in stock; the sellers' links on this page open their listings.
What can replace the TMMDB3?
Parts like it in the library: the LLDB3 by LGE, the TMMDB3TG by STMicroelectronics, the LLDB3 by Slkor and the LLDB3 by TDD. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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