Overview
The SMA4F18AY is a TV made by STMicroelectronics in a SMA-flat package with 2 pins. -55℃~+175℃ 200nA 22.2V 24.6V 400W@10/1000us 42.8V 59A@8/20us IEC 61000-4-2 TVS Unidirectional SMA-flat ESD and Surge Protection (TVS/ESD) ROHS.
PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (EasyEDA_Cloud:SMA_L4.3-W2.6-LS5.2-RD, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1974619).
Symbol
Footprint
Parameters
11- Clamping Voltage
- 42.8V
- Number of Channels
- 1
- Operating Temperature
- -55℃~+175℃
- Peak Pulse Current (Ipp)
- 59A@8/20us
- Peak Pulse Power Dissipation (Ppp)
- 400W@10/1000us
- Polarity
- Unidirectional
- Reverse Leakage Current (Ir)
- 200nA
- Reverse Stand-Off Voltage (Vrwm)
- 22.2V
- Type
- TVS
- Voltage - Breakdown
- 24.6V
- level of protection
- IEC 61000-4-2
Order codes
1- SMA4F18AYLCSC C1974619
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/st/SMA4F18AY" title="SMA4F18AY 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/SMA4F18AY.jpg" alt="SMA4F18AY" width="1200" height="900">[](https://pcbkit.io/parts/st/SMA4F18AY)Questions
Is there a KiCad symbol and footprint for the SMA4F18AY?
Yes. The symbol is Device:D_TVS and the footprint EasyEDA_Cloud:SMA_L4.3-W2.6-LS5.2-RD, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SMA4F18AY?
SMA-flat, with 2 pins. Its footprint is drawn on this page.
Where is the SMA4F18AY datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the SMA4F18AY?
JLCPCB lists it as part C1974619, with 0 in stock; the sellers' links on this page open their listings.