

Overview
The M4F is a diodes General Purpose made by MDD in a SMAF package with 2 pins. -55℃~+150℃ 1.1V@1A 1A 30A 400V 5uA@400V Independent SMAF Diodes - General Purpose ROHS.
PCBKit's library has its KiCad symbol (Device:D, from KiCad's library) and its footprint (EasyEDA_Cloud:SMAF_L3.5-W2.6-LS4.7-FD, from EasyEDA), ready for a KiCad board. 3,636 are in stock at JLCPCB (part C2858525). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
7- Current - Rectified
- 1A
- Diode Configuration
- Standalone
- Non-Repetitive Peak Forward Surge Current
- 30A
- Operating Junction Temperature Range
- -55℃~+150℃
- Reverse Leakage Current (Ir)
- 5uA@400V
- Voltage - DC Reverse(Vr)
- 400V
- Voltage - Forward(Vf@If)
- 1.1V@1A
Order codes
1Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | K | Passive |
| 2 | A | Passive |
Open-source boards using it
All 1- 2 layers77 × 67 mm

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<iframe src="https://pcbkit.io/embed/parts/mdd/M4F" title="M4F in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/mdd/M4F.jpg" alt="M4F" width="1200" height="900">[](https://pcbkit.io/parts/mdd/M4F)Questions
Is there a KiCad symbol and footprint for the M4F?
Yes. The symbol is Device:D and the footprint EasyEDA_Cloud:SMAF_L3.5-W2.6-LS4.7-FD, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the M4F?
SMAF, with 2 pins. Its footprint is drawn on this page.
Where is the M4F datasheet?
MDD publishes it: the Datasheet link on this page opens it.
Where can I order the M4F?
JLCPCB lists it as part C2858525, with 3,636 in stock; the sellers' links on this page open their listings.
What can replace the M4F?
Parts like it in the library: the M7F by MSKSEMI and the M7F by Yangzhou Yangjie Electronic Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the M4F?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.