Introducing Standex Detect, a New Name in Precision Electronics

Standex Detect is part of the newly rebranded Standex Electronics family. Our focus remains on precision reed switches, sensors, and relays that deliver the right design, at the right time, at the optimal cost. Read our press release to learn more about how this change strengthens our global collaboration and innovation.

Home Products Reed Switches ORT551-1 Series Reed Switch

ORT551-1 Series Reed Switch

The ORT551-1 Series is a miniature SPDT (Form C) reed switch designed for changeover-type operation in compact electronic systems. With a glass body length of 14.0 mm and a diameter of 2.54 mm, it delivers reliable switching under 30 VDC with a rated power of 3 W and a switching current of 0.2 A.

This reed switch features a unique mechanical detail: the normally closed (N.C.) lead includes a dog-leg bend, aiding in identification and mounting alignment. Its hermetically sealed contacts are enclosed in inert gas, ensuring long-term reliability and consistent performance in both consumer and industrial environments.

Standards and Certifications

REACH Compliant RoHS Compliant UL Approved UL US Approved
  • SPDT (Form C) contact configuration for dual-circuit switching
  • Compact 14.0 mm glass body for space-constrained designs
  • Dog-leg bend on N.C. lead for easy identification and mounting precision
  • Hermetically sealed contacts in inert gas for enhanced durability
  • Magnetically actuated with no external power required
  • Fast switching response for real-time control in low-voltage systems
Overall Length mm (inches)55.1 (2.169)
Glass Length Max. mm (inches)14.0 (0.551)
Glass Dia. Max. mm (inches)2.54 (0.100)
Lead Dia. mm (inches)0.5 (0.019)
Contact Form1C (SPDT) Changeover
Pull-In Range10-30 AT
Rated Power Max.3W/30VDC/0.2 Amp DC
  • Consumer Electronics: Mode switching, magnetic docking systems
  • Security Systems: Dual-state door/window sensors, tamper detection
  • Medical Devices: Compact switching in diagnostic and monitoring equipment
  • Industrial Automation: State toggling in control systems and actuators
  • Smart Appliances: Multi-function sensing, fluid level control
  • Automotive Systems: Position detection, dual-path signal routing

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