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 Series Reed Switch

ORT551 Series Reed Switch

The ORT551 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 offers reliable switching under 30 VDC with a rated power of 3 W and a switching current of 0.2 A.

This switch is hermetically sealed in inert gas to ensure long-term contact reliability and consistent performance. Its compact form factor and dual-contact configuration make it ideal for applications requiring precise state detection, redundancy, or dual-path control in low-voltage environments.

Standards and Certifications

REACH Compliant RoHS Compliant UL Approved UL US Approved
  • SPDT (Form C) contact configuration for flexible changeover switching
  • Compact 14.0 mm glass body for space-constrained designs
  • Hermetically sealed contacts in inert gas for enhanced durability and reliability
  • Straight lead configuration for easy PCB mounting and mechanical stability
  • Magnetically actuated with no external power required, ideal for energy-efficient systems
  • Rated for 3 W, 30 VDC, and 0.2 A switching current for signal-level applications
Overall Length mm (inches)56.1 (2.208)
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: Door/window sensors with dual-state 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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