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Hot News! Megavac company released latching relay series.
Megavac is pleased to present to its customers as many as 4 new types of polarized relays: MGV41P - polarized SPST (made on the basis of the MGV41A\MGV41B relay). MGV41R - polarized SPDT (based on MGV41C relay). MGV43P - polarized SPST (based on MGV43A\MGV43B relay). MGV43R - polarized SPDT (based on MGV43C relay). These relays are specially designed for quick replacement...
What is a polarized relay?
Introduction - High voltage ceramic vacuum polarized relays are relays that use polarized type electromagnetic actuator in a vacuum chamber to switch high voltages and frequencies. - They have advantages over ordinary relays, such as low contact resistance, high insulation, long service life and small size. - They are applied in various fields such as... Continue reading→
What are high voltage vacuum relays?
High-voltage ceramic vacuum relay is a relay that uses ceramic vacuum sealing to isolate relay contacts from external air and provide high breakdown strength for relays operating in high-voltage circuits. Vacuum sealing prevents arcing between contacts and reduces contact resistance. High-voltage ceramic vacuum relays feature low noise, high reliability, long service life... Continue reading→
MGV46 - replenishment of the nomenclature in the Megavac line
Megavac is pleased to introduce a new relay type, MGV46, with low coil resistance: 230Ω/12V; 920Ω \ 26.5V; 4700Ohm\115V; This type of relay is designed for applications with stringent power requirements. Model Switching under load Operating voltage (kV) Pin assignment Res. contacts, mΩ Weight, g Number of cycles Documentation Maximum current (A) DC 2.5 MHz 16 MHz 32 MHz MGV46A… Continue reading→
High voltage vacuum relays. Basic terms and definitions.
Arc - an electrical discharge between mating relay contacts when an energized circuit is interrupted. Contact bounce is intermittent unwanted opening of closed contacts or closing of open contacts. Gap - opening closed contacts to interrupt the electrical circuit. Voltage breakdown is an undesirable condition for an arc to occur in a relay due to overvoltage. A cold circuit is a de-energized electrical circuit. A dielectric is an insulating medium... Continue reading→
High voltage vacuum relays. Areas of use.
RF \ HF \ microwave equipment. Vacuum relays play a vital role when high power and low RF losses are required. Vapor deposition for wafer processing Transmitter/receiver antenna switches Pulse shaping networks Ion implant MRI power supplies Radar systems Security screening systems TWT power supplies Radio antenna tuning matching circuits Test equipment and instrumentation… Continue reading→
High voltage vacuum relays. General information. Part 1
Vacuum relays are widely used in airborne (aviation), mobile and marine communications equipment. Typical applications include antenna coupling, tap switching on radio frequency (RF) coils, transmit/receive switching to an antenna, switching in pulse shaping networks, and heavy duty power supplies, including those for heavy duty applications. Such relays are characterized by high speed of operation and the ability to withstand ... Continue reading→
MGV-20 available to order
-30kV High Voltage Vacuum Relays - SPST (Single Base Single Throw) - There are two versions available: a) MGV20A (SPST-NO, Normally Open) b) MGV20B (SPST-NC, Normally Closed) -High voltage switching - screw connection. - Relay fastening - through, under a carving.
New directions in application.
High voltage vacuum relays can be applied in various fields such as radar systems, ESD pulse generating equipment, high voltage test equipment, high voltage power supplies, airfield lighting systems.
The main application of the relay.
As everyone knows, high-voltage relays are called relays that switch circuits with voltages over 500 V and high currents. Precisely because of the ability to steer gigantic powers, relays are used in aerospace RF applications. This equipment requires compact relays that have low RF overhead, have unsurpassed dielectric properties at high voltages, and are capable of operating at high altitudes under harsh weather conditions. Other than that, extensive use of relays has been found in medical equipment and all sorts of commercial applications. Continue reading→
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