Cynergy3 D1 Series

Cynergy3 D1 Series

The D1 series of reed relays with changeover contacts offers 100W switching power (at 33.3V DC switching voltage), an isolation across contacts of 0.75kV (AC or DC peak) and highly reliable tungsten contacts. These relays utilise high vacuum reed switches to achieve their excellent switching characteristics, and are often used in safety critical applications. The D1 series of relays is offered with or without magnetic screen and is PCB mountable, with custom mounting options available upon request. The series has been UL approved as per pollution degree 2 classification. The D1 series offers a working temperature range from -40°C up to +65°C.

  • UL approved, D Size Form C (Changeover) relays
  • 100W switching power
  • Tungsten changeover contacts
  • Isolation across contacts 0.75kV (AC or DC peak)
  • Maximum switching voltage of 240V DC
  • Choice of three coil voltage ratings - 5V, 12V or 24V DC
  • PCB mount (custom mounting options available upon request)
  • Available with or without magnetic screen
  • Working temperature from -40°C up to +65°C

Typical applications for the Cynergy3 D1 changeover relay series include:

  • Test equipment
  • High voltage power supplies

The below table gives the full specifications for each resistor model available including the Cynergy3 D1 series:

Cynergy3 D1 series specifications
Additional Features
  • D Size Form C (Changeover) relays
  • UL Approved
  • 100W switching po
  • Excellent switching characteristics
  • With or without magnetic screen
Coil Voltage
  • 5V
  • 12V
  • 24V
Connection Type
  • PCB mount
  • Custom mounting options available upon request
Contact Form Tungsten
  • 0.75kV across contacts (AC or DC peak)
  • 3kV contact to coil (AC or DC peak)
Operating Temperature -40°C to +65°C
Voltage Rating 240V switching voltage (at 20VA switching power)

We are pleased to provide you with a range of additional content including product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:



PDF Document Cynergy3 D1 Changeover Relay Series Datasheet
PDF Document Application notes for Cynergy3 high voltage reed relays
PDF Document How to protect reed switch contacts
PDF Document Cynergy3 provide High Voltage Reed Relays to DIAN racing
PDF Document Cynergy3 is delighted to be sponsoring Elefant Racing Bayreuth

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

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  • Product Code: Cynergy3 D1 Form C (changeover) Relay Series
  • SKU: Cynergy3 D1 Form C (changeover) Relay Series
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Tags: D105C, D105CM, D112C, D112CM, D124C, D124CM