
Overview
The RLM102-501M is a glass Discharge Tube made by RUILON in a SMD,5x2.8mm package with 2 pins. -45℃~+85℃ 100MΩ 1kA 1pF 500V ±20% SMD,5x2.8mm Glass Discharge Tubes ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:RL302-501M, from EasyEDA) and its footprint (EasyEDA_Cloud:DIO-DT-SMD_L5.0-W2.8, from EasyEDA), ready for a KiCad board. 2,925 are in stock at JLCPCB (part C2935590). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
8- Capacitance
- 1pF
- Diameter (φD)
- 2.7mm
- Insulation Resistance
- 100MΩ
- Length
- 5mm
- Operating Temperature Range
- -45℃~+85℃
- Surge Current Capacity (8/20us)
- 1kA
- Tolerance
- ±20%
- Voltage - DC Spark Over (Nom)
- 500V
Order codes
1- RLM102-501MLCSC C2935590
Pinout
2| Pin | Name | Type |
|---|---|---|
| 1 | 1 | Unspecified |
| 2 | 2 | Unspecified |
Open-source boards using it
All 1- 6 layers240 × 207 mm

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<iframe src="https://pcbkit.io/embed/parts/ruilon/RLM102-501M" title="RLM102-501M in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ruilon/RLM102-501M.jpg" alt="RLM102-501M" width="1200" height="900">[](https://pcbkit.io/parts/ruilon/RLM102-501M)Questions
Is there a KiCad symbol and footprint for the RLM102-501M?
Yes. The symbol is EasyEDA_Cloud:RL302-501M and the footprint EasyEDA_Cloud:DIO-DT-SMD_L5.0-W2.8, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the RLM102-501M?
SMD,5x2.8mm, with 2 pins. Its footprint is drawn on this page.
Where is the RLM102-501M datasheet?
RUILON publishes it: the Datasheet link on this page opens it.
Where can I order the RLM102-501M?
JLCPCB lists it as part C2935590, with 2,925 in stock; the sellers' links on this page open their listings.
What can replace the RLM102-501M?
Parts like it in the library: the RLM102-141N by RUILON, the RLM102-201M by RUILON, the RL102-301M by RUILON and the RL302-301M by RUILON. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the RLM102-501M?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8RLM102-141N
SMD,5x2.8mm-45℃~+85℃ 100MΩ 140V 1kA 1pF 2.7mm ±30% SMD,5x2.8mm Glass Discharge Tubes ROHSRUILONGlass Discharge TubesRLM102-201M
SMD,5x2.8mm-45℃~+85℃ 100MΩ 1kA 1pF 2.7mm 200V 5mm ±20% SMD,5x2.8mm Glass Discharge Tubes ROHSRUILONGlass Discharge TubesRL102-301M
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插件-45℃~+125℃ 100MΩ 1pF 3.1mm 300V 3kA ±20% 插件 Glass Discharge Tubes ROHSRUILONGlass Discharge TubesRL302-501M
插件-45℃~+125℃ 100MΩ 1pF 3.1mm 3kA 500V ±20% 插件 Glass Discharge Tubes ROHSRUILONGlass Discharge TubesRLS302-201M
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插件-40℃~+125℃ 100A 100MΩ 1pF 3kV ±20% 插件 Glass Discharge Tubes ROHSSURGINGGlass Discharge Tubes