Low Thermal EMF Reed Relay

The 3540 surface-mount low thermal EMF reed relay series from Coto features available coil voltage options of 5V_DC and 12V_DC with a switching voltage of 500V and switching current of 0.5A. The 3540 series is designed to offer a low thermal EMF range of <3µV and <5µV. An epoxy coated steel shell provides magnetic shielding with hermetically sealed contacts for long life and high reliability. The 3540 series is ideally suited to the needs of instrumentation, data acquisition and process control.

• Surface-mount low thermal EMF reed relay
• Nominal coil voltage options of 5V_DC and 12V_DC
• Contact form of 1A
• Switching voltage of 500V
• Dielectric strength of 1500V_DC
• Thermal EMF options of <3µV and <5µV available
• Contact rating 10W
• Switching current 0.5A
• High insulation resistance of 10¹²Ω minimum
• Temperature range −20°C to +85°C
• Potted package size

Typical Applications include:

• High accuracy DVM’s
• Multiplexers
• Digital or analog multi-point recorders

Coto is a worldwide market leader of small signal-switching products sold into the Automatic Test Equipment, Data Acquisition, Instrumentation, Process Control, Telecommunications, Medical and Security markets. Coto specialises in the manufacture of relay, switch and sensor products. Coto are the pioneers of the RedRock® analog and digital TMR magnetic sensors, offering the lowest power consumption, highest sensitivity, ultra-miniature package size, short lead times and a highly-competitive price. Please visit https://cotorelay.com/ for more information.