The COTO Technology 3600-0031 is a low thermal EMF reed relay engineered for precision instrumentation, data acquisition, and process control applications. This set includes 8 relays featuring a patented low thermal design that achieves thermal EMF ratings as low as <0.5 µV with 50 nV stability, or <5 µV as standard. The relays employ hermetically sealed contacts, low-power coils, and an epoxy-coated steel shell with standard electrostatic shielding to minimize thermal disturbance and capacitive coupling—making them ideal for scanners, multiplexers, and multipoint recorders demanding thermal precision.
## Technical Specifications
• **Thermal EMF:** <5 µV (standard); <0.5 µV with 50 nV stability (enhanced); <3 µV and <1 µV ratings also available
• **Coil Voltage:** 5 VDC or 12 VDC options
• **Coil Resistance (25°C):** 350 Ω (5V); 2000 Ω (12V)
• **Operate Voltage (Max.):** 3.8 VDC (5V coil); 9.0 VDC (12V coil)
• **Release Voltage (Min.):** 0.4 VDC (5V coil); 1.0 VDC (12V coil)
• **Isolation Voltage:** 1500 VDC
• **Insulation Resistance:** 10¹² Ω
• **Contact Rating:** 5 Watts (Max. DC/Peak AC resistive)
• **Switching Voltage:** 150 Volts (Max. DC/Peak AC resistive)
• **Operating Temperature:** −20°C to +85°C
• **Storage Temperature:** −35°C to +100°C
• **Life Expectancy:** 1.0 × 10⁶ operations (signal level: 1.0 V, 10 mA)
## Key Features
• Hermetically sealed contacts for high reliability
• Patented low thermal design (U.S. Patent #4,084,142)
• Epoxy-coated steel shell provides magnetic shielding
• Standard electrostatic shield reduces capacitive coupling
• Low-power coils engineered for minimal thermal disturbance
• High dielectric strength in Form A configurations
• RoHS compliant
## Typical Applications
• Instrumentation and measurement systems
• Data acquisition systems
• Process control
• Scanner and multiplexer circuits
• Digital and analog multipoint recorders
## Compatibility & Integration
Solder temperature tolerance: 270°C max for 10 seconds. Available in multiple coil voltage and thermal EMF rating configurations to match specific system requirements.
