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Standex Detect is the new name for our precision reed switches, sensors, and relays business.

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BT/BTS Series Reed Relay

The BT/BTS Series is a precision-engineered low thermal reed relay designed for ultra-sensitive signal switching in high-accuracy measurement systems. Featuring epoxy encapsulation and optimized thermal balancing, these relays achieve offset voltages below 1 µV, making them ideal for applications where even the smallest thermal disturbance can affect signal integrity.

Available in DPST-NO (Form 2A) configurations, the BT/BTS Series supports switching voltages up to 1,000 VDC, rated power up to 100 W, and currents up to 1.0 A. With coil voltage options of 5 VDC, 12 VDC, and 24 VDC, and coil resistance ranging from 350 Ω to 5000 Ω, these relays offer versatile integration into precision instrumentation and automated test environments. Their low thermal characteristics make them a superior alternative to semiconductor switches in ultra-low voltage applications.

  • Ultra-low thermal offset (<1 µV) for high-precision signal switching
  • Epoxy encapsulated design for thermal stability and durability
  • DPST-NO (Form 2A) contact configuration for dual-channel switching
  • Rated for up to 100 W, 1000 VDC, and 1.0 A
  • Coil voltage options: 5 VDC, 12 VDC, 24 VDC
  • Magnetic shielding for reduced interference in dense assemblies
  • Through-hole mounting for secure PCB integration
  • Ideal for low-level signal switching in sensitive environments
Coil Voltage (VDC)5, 12, 24
Coil Resistance (Ω)350-5000
Contact Form2A (DPST) Normally Open (N.O.)
Rated Power Max.100W/1000VDC/1A
  • Data Acquisition Systems: Low-offset switching for sensor and transducer inputs
  • Precision Measurement Devices: Reliable signal control in metrology instruments
  • Automated Test Equipment (ATE): High-isolation switching in test matrices
  • Scanners & Recorder Inputs: Stable relay performance for analog signal paths
  • Medical Instrumentation: Low-leakage switching in diagnostic systems
  • Thermocouple Switching: Accurate signal routing in temperature measurement setups

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