4 layers60 × 60 mm
SMF3.3
LittelfuseExtended
-55℃~+150℃ 200W 3.3V 3.4V 30A 500nA 6.8V IEC 61000-4-2、IEC 61000-4-4 TVS SOD-123FL ESD and Surge Protection (TVS/ESD) ROHS
- Part id
- littelfuse/SMF3.3
- Category
- ESD And Surge Protection (TVS, ESD)
- Package
- SOD-123FL
- Pins
- 2
- In stock
- 7,405 at JLCPCB (C2649858)
- Used on
- 13 open-source boards
Overview
The SMF3.3 is an ESD And Surge Protection made by Littelfuse in a SOD-123FL package with 2 pins. -55℃~+150℃ 200W 3.3V 3.4V 30A 500nA 6.8V IEC 61000-4-2、IEC 61000-4-4 TVS SOD-123FL ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (Diode_SMD:D_SOD-123F, from KiCad's library), ready for a KiCad board. 7,405 are in stock at JLCPCB (part C2649858). 13 open-source boards in 13 repositories on GitHub use it.
Symbol
Footprint
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
- 4 layers214 × 142.6 mm
Unmechanical sweepish
ebastler/UnMechanical
Capacitive touch keyboard running QMK firmware
168 parts13CERN-OHL-P-2.0 - 2 layers210.1 × 69.6 mm
- 4 layers102.4 × 83.1 mm
- 2 layers102.1 × 82.7 mm
PLC Electiva
JosueHerrera05/Josue_Herrera_Electiva_2026_C2
Repositorio Electíva Diseño Mecatrónico 2026-C2
198 partsMIT - 4 layers200 × 50 mm
- 6 layers62 × 37 mm
BM Mote 000639-AB
nickraymond/nereus_Pi_shield_ADIN2111
A Raspberry Pi Zero 2W shield built from a copy of the Sofar Bristlemouth mote: ADIN2111 two-port 10BASE-T1L with PoDL, powered from the bus, 5 V for the Pi, a 24 V payload port, and the Sofar mote's power path…
167 parts - 4 layers102.4 × 83.1 mm
PLC4UNI GC1
paulmartinezcuenta/PLC4UNI
Development of programmable logic controller, product for mechatronic design.
179 partsMIT
Parts like it
8
SMF3.3A
SOD-123FL200W@10/1000us 25A 3.3V 5.2V 500uA 8V IEC 61000-4-2、IEC 61000-4-4 TVS Unidirectional SOD-123FL ESD and Surge Protection (TVS/ESD) ROHSDOWOESD And Surge Protection (TVS/ESD)SMF3.3CA
SOD-123FL-55℃~+150℃ 200W@10/1000us 27.4A@10/1000us 3.3V 5.3V 500uA 7.3V Bidirectional IEC 61000-4-2 TVS SOD-123FL ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)SMF3.3CA
SOD-123FL200W@10/1000us 22.7A@10/1000us 3.3V 500uA 6.5V 8.8V Bidirectional IEC 61000-4-2、IEC 61000-4-4 TVS SOD-123FL ESD and Surge Protection (TVS/ESD) ROHSDOWOESD And Surge Protection (TVS/ESD)SMF3.3CA
SOD-123FLESD And Surge Protection (TVS/ESD)FUXINSEMISMF3.3A
SOD-123FL1.9nF 200W@10/1000us 27A@10/1000us 3.3V 4.1V 50uA 7.3V Bidirectional SOD-123FL ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)SMF3.3A
SOD-123FL-55℃~+150℃ 200W@10/1000us 27.4A@10/1000us 3.3V 5.3V 7.3V 800uA TVS Unidirectional SOD-123FL ESD and Surge Protection (TVS/ESD) ROHSZHIDEESD And Surge Protection (TVS/ESD)SMF3.3A
SOD-123FLESD And Surge Protection (TVS/ESD)BORNSM2T3V3AF
SOD-123FLESD And Surge Protection (TVS/ESD)FUXINSEMI
Questions
Is there a KiCad symbol and footprint for the SMF3.3?
Yes. The symbol is Device:D_TVS and the footprint Diode_SMD:D_SOD-123F, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SMF3.3?
SOD-123FL, with 2 pins. Its footprint is drawn on this page.
Where is the SMF3.3 datasheet?
Littelfuse publishes it: the Datasheet link on this page opens it.
Where can I order the SMF3.3?
JLCPCB lists it as part C2649858, with 7,405 in stock; the sellers' links on this page open their listings.
What can replace the SMF3.3?
Parts like it in the library: the SMF3.3A by DOWO, the SMF3.3CA by hongjiacheng, the SMF3.3CA by DOWO and the SMF3.3CA by FUXINSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the SMF3.3?
13 boards in 13 repositories on GitHub; the most starred are listed on this page, with their KiCad files.