

Overview
The RLSD52A051V is an ESD Protection Device made by RUILON in a SOD-523 package with 2 pins. -55℃~+150℃ 1 5A 5V 9V IEC 61000-4-2 TVS Unidirectional SOD-523 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-523, from KiCad's library), ready for a KiCad board. 65,641 are in stock at JLCPCB (part C20932). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
9- Clamping Voltage
- 9V
- Number of Channels
- 1
- Operating Temperature
- -55℃~+150℃
- Peak Pulse Current (Ipp)
- 5A
- Peak Pulse Power Dissipation (Ppp)
- 150W@8/20us
- Polarity
- Unidirectional
- Reverse Stand-Off Voltage (Vrwm)
- 5V
- Type
- TVS
- level of protection
- IEC 61000-4-2
Order codes
2- RLSD52A051VLCSC C14395
- RLSD52A051VLCSC C20932
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | A1 | Passive |
| 2 | A2 | Passive |
Open-source boards using it
All 1- 4 layers

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Is there a KiCad symbol and footprint for the RLSD52A051V?
Yes. The symbol is Device:D_TVS and the footprint Diode_SMD:D_SOD-523, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the RLSD52A051V?
SOD-523, with 2 pins. Its footprint is drawn on this page.
Where is the RLSD52A051V datasheet?
RUILON publishes it: the Datasheet link on this page opens it.
Where can I order the RLSD52A051V?
JLCPCB lists it as part C20932, with 65,641 in stock; the sellers' links on this page open their listings.
What can replace the RLSD52A051V?
Parts like it in the library: the ESD5V0D5-TP by Micro Commercial Components, the CESD523NC5VB by CREATEK, the PESD5V0U1BBYL by Nexperia and the SEL0521D5 by SALLTECH. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the RLSD52A051V?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
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