R43A Series High Voltage Relay
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R43A Series High Voltage Relay
The R43A series high voltage relay is engineered to meet demanding load conditions in high-voltage applications, while maintaining a compact structure. Its extended and layered ceramic body provides higher isolation compared to the R41A series, making it a safer choice for systems requiring enhanced insulation.
Thanks to its RF-compatible design, the R43A performs exceptionally well in high-frequency and precision switching applications. Its tungsten contact structure offers excellent make/break switching capability, ensuring long service life and stable operation. It is commonly used in applications such as antenna tuning units (ATUs) and high-voltage test systems.
The relay operates in an SPST-NO (Single Pole Single Throw – Normally Open) configuration. In this setup, the circuit remains open until coil power is applied. Once energized, the contact closes and connects the load. This simple yet effective configuration provides a reliable solution for isolation and safe control.
For detailed product specifications, please refer to the table below.
| Product Specifications | |
| Maximum Voltage | 10 kV |
| Continuous Current | 25 A (DC or 60Hz) |
| Contact Configuration | SPST-NO |
| Contact Form | Form A = Normally Open |
| Application Type | Make/Break Load Switching |
| Coil Voltage Options | 12VDC or 26.5VDC |
| Mounting Type | Standard or 3-hole flange mount |
| Contact Material | Molybdenum / Tungsten |
| Dielectric Medium | Vacuum |
| HV Connection Options | Solder Tab |
| Coil Terminal | Bus Wire |
