
Overview
The 1N8174US is an ESD And Surge Protection made by Microchip Technology in a MELF-SQ(A) package with 2 pins. -55℃~+175℃ 1.2A 125V 150W@10/1000us 4pF 500nA 75V 86.5V Bidirectional IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 TVS MELF-SQ(A) ESD and Surge Protection (TVS/ESD).
PCBKit's library has its KiCad symbol (Device:D_TVS, from KiCad's library) and its footprint (EasyEDA_Cloud:SQ-MELF_BD2.5-L5.1-BI, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2629252).
Symbol
Footprint
Parameters
5- Breakdown Voltage
- 86.5V
- Maximum Clamping Voltage
- 125V
- Reverse Stand-Off Voltage (Vrwm)
- 75V
- Type
- TVS
- polarity
- Bidirectional
Order codes
1- 1N8174USLCSC C2629252
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
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Is there a KiCad symbol and footprint for the 1N8174US?
Yes. The symbol is Device:D_TVS and the footprint EasyEDA_Cloud:SQ-MELF_BD2.5-L5.1-BI, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 1N8174US?
MELF-SQ(A), with 2 pins. Its footprint is drawn on this page.
Where is the 1N8174US datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the 1N8174US?
JLCPCB lists it as part C2629252, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 1N8174US?
Parts like it in the library: the SMCJ75CA by hongjiacheng, the SMF75A by Jiangsu Changjing Electronics Technology (CJ), the SMBJ75CA by hongjiacheng and the 5.0SMDJ75CA by Liown. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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