
Overview
The 1N8157US is an ESD And Surge Protection made by Microchip Technology in a MELF-SQ(A) package with 2 pins. -55℃~+175℃ 150W@10/1000us 15V 17.1V 1uA 25.1V 4pF 5.98A Bidirectional 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-RD, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2629787).
Symbol
Footprint
Parameters
10- Clamping Voltage
- 25.1V
- Junction Capacitance
- 4pF
- Operating Temperature
- -55℃~+175℃
- Peak Pulse Current (Ipp)
- 5.98A
- Peak Pulse Power Dissipation (Ppp)
- 150W@10/1000us
- Polarity
- Bidirectional
- Reverse Leakage Current (Ir)
- 1uA
- Reverse Stand-Off Voltage (Vrwm)
- 15V
- Type
- TVS
- Voltage - Breakdown
- 17.1V
Order codes
1- 1N8157USLCSC C2629787
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/microchip/1N8157US" title="1N8157US in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/1N8157US.jpg" alt="1N8157US" width="1200" height="900">[](https://pcbkit.io/parts/microchip/1N8157US)Questions
Is there a KiCad symbol and footprint for the 1N8157US?
Yes. The symbol is Device:D_TVS and the footprint EasyEDA_Cloud:SQ-MELF_BD2.5-L5.1-RD, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the 1N8157US?
MELF-SQ(A), with 2 pins. Its footprint is drawn on this page.
Where is the 1N8157US datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the 1N8157US?
JLCPCB lists it as part C2629787, with 0 in stock; the sellers' links on this page open their listings.
What can replace the 1N8157US?
Parts like it in the library: the SMF15CA by hongjiacheng, the H15VL10B by hongjiacheng, the H15VND3B by hongjiacheng and the H15VU10B by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8SMF15CA
SOD-123FLESD And Surge Protection (TVS/ESD)hongjiachengH15VL10B
DFN1006-2L-55℃~+125℃ 15V 19.5V 200nA 20pF 320W@8/20us 40V 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 DFN1006-2L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)H15VND3B
SOD-323-55℃~+125℃ 15V 200nA 20V 304W@8/20us 30pF 38V 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 Single-channel SOD-323 ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)H15VU10B
DFN1006-2L-55℃~+125℃ 0.3pF 15V 2.5A@8/20us 200nA 21.5V 35V 90W@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 DFN1006-2L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)SMAJ15A
DO-214AC(SMA)-55℃~+150℃ 15V 16.4A 16.7V 24.4V 400W 5uA TVS Unidirectional DO-214AC(SMA) ESD and Surge Protection (TVS/ESD) ROHSGOODWORKESD And Surge Protection (TVS/ESD)SMBJ15CA
DO-214AA(SMB)-65℃~+150℃ 15V 18.5V 1uA 24.4V 24.6A@10/1000us 600W@10/1000us Bidirectional TVS DO-214AA(SMB) ESD and Surge Protection (TVS/ESD) ROHSMDDESD And Surge Protection (TVS/ESD)SMAJ15CA
DO-214AC(SMA)ESD And Surge Protection (TVS/ESD)hongjiachengSMF15A
SOD-123FLESD And Surge Protection (TVS/ESD)hongjiacheng