PCB Relays

Integrate compact and efficient switching into your electronics with PCB relays. Designed for control, automation, and signal switching, these relays offer reliable performance in space-constrained circuit board applications.

Safety relays with forcibly guided contacts

Safety technology is becoming increasingly important in mechanical and plant engineering. Safety modules or even safety controllers are used everywhere. Despite the increasing use of semiconductors, electromechanical relays are still an important component. The so-called safety relays, i.e. relays with mechanically forcibly guided contacts according to DIN EN 61810-3, are used wherever people, machines and valuable goods have to be protected against damage and injury. Such a relay consists of at least one normally closed contact and one normally open contact and is constructed in such a way that the normally closed contact and the normally open contact are never closed at the same time. For example, if a normally open contact fails due to opening failure, the associated normally closed contact cannot close when the supply voltage is switched off. This behavior enables easy diagnosis and fault detection when monitoring the positively driven feedback contact.

PCB relays

PCB relays, also known as plug-in/print relays, are used for galvanic separation of circuits as well as for signal adaptation and signal strengthening. Our vertical and horizontal designs enable optimum adaptation to your application. Dold PCB relays, with max. continuous currents up to 16 A, are available with one or two contacts, in different installation heights and with different contact materials.

Miniature relay, power miniature relay

If it is necessary to switch heavy currents reliably in a small space and galvanic separation of control and load circuits is also required, there is no better answer than the compact miniature power relays available in DIL (Dual In-Line) form. With the smallest of dimensions, at around 20 mm long and 10 mm wide, they can be inserted into conventional 16-pole IC sockets.

All miniature relays are optionally available as versions with one NO contact or with one changeover contact. Different technologies, contact materials and contact configurations show their strengths in various applications.

Bistable relays

Bistable relays can be used to switch applications in a reliable and energy-saving manner. They retain their switched position if supply voltage fails, preventing loss of information on the current switching status. Bistable relays allow for two stable switch positions even when powered down. In comparison to monostable relays, just a short switching impulse of a few milliseconds is enough to switch the relay into a defined switch position. Only a low nominal power level is required. This saves energy and reduces heat generation. In addition, the relays have high vibration and shock resistance. The bistable relay OB 5623 with forcibly guided contacts was developed for special applications such as in railway and signal technology.

PCB relay
Miniature PCB relay
Signal relay for circuit boards
Low-profile PCB relay
High-current PCB relay
PCB relay for automation
Electromechanical relay for PCB
PCB-mounted switching relay
Compact relay for electronics
PCB relay for control systems

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