Reed relay for durable and reliable switching

Our reed relays operate according to the simple and long-lasting principle of reed technology. A reed switch with 2 ferromagnetic switch blades are hermetically enclosed in a glass body. They are therefore protected from pollution and other environmental influences. This ensures a constant low contact transition resistance with high reliability and long service life. If a current flows through the coil, a magnetic field is generated. This affects the 2 ferromagnetic switches so that they attract each other and thus close the contact.

The reed relay consists of the following components:

Reedrelais are available in various designs as closers, openers or changers. They are often used in electronic circuits.

Comparison: Semiconductor Relay | Reed relay

Semiconductor relays use the switching behavior of specially controlled transistors, mostly based on FET switches.
Because of the internal reed switch the insulation resistance of Reed relays is much higher than for the semiconductor types. They have a certain leak current due to the design. The capacity of a semiconductor relay is much bigger. Reed relays generally have a potential separation from the signal path, which is not the case with the semiconductor types.

Comparison: Mechanical relay | Reed-Relais

Reed relays have a mechanical life (for small loads) that is 10 to 100 times longer than mechanical relays because they have less moving
parts. They switch by a factor of 10 faster, due to the easier and easier setup of the switching points. The isolation values with open contact are significantly higher, up to 10^14 ohm. Similarly, you need less power to switch contacts than for mechanical types. In addition, reedrelais can be switched at a high switching frequency of several hundred Hertz. The average downtime rate (MTBF) is also well over 100,000 hours.

In order to respond to your specific requirements in the best possible way, the Reedrelais are available in various versions. We use different reed switches inside the relay to relize specific electrical parameters.

You get the relay with different pinnings for PCB assembly.
We also provide you with axial relay types. As an option, you can order these with diode, magnetic or electrostatic screen , or as a highly insulated version for special requirements.

Highly insulated

High-insulated reedrelais are used for applications in measurement technology with high demands for interference signal suppression. This design offers insulation resistance of up to 10 TOhm, with a low leak current, a constant transition resistance, an electrostatic and magnetic screen and all in a high-primal design.

Magnetic Shield

A shielding hood made of ferromagnetic material prevents the influence of external magnetic fields on the relay. This is also used when the relays are placed close to each other on a board. This prevents mutual influence.

Static Shield.

An optimal shielding of the contacts between each other and the coil is achieved by CU-tubes around the reed contact. They also reduce the pruning of the contacts and thus the interference voltage by magnetic resistance. This reduces the tightening and waste delay of the eddy currents caused by this construction.

Reed relays can be found in various basic variants:

You can choose between normally open, normally closed and change over contacts .
There are single-pole and multi-pole relays, i.e. one or more switching contacts.
You can get the relays with our standard pinning, but also define your individual connection pinning.
Optionally, a diode can be integrated into the relay to suppress voltage spikes. An optional magnetic shield allows the shielding of external magnetic fields, which can otherwise cause the relay to malfunction.

Selectable Product Parameters: