Glossary of Electrical Relays

• Basics
• Technology
  • Relay Technology – Mechanical Relays (Movable Contacts)
  • Relay Technology – MOS FET Relays (No Movable Contacts)
• Applications
• Standards
• Glossary
  • List
  • Search by alphabetical index
  • Search by Category

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Contacts

• Contact form
• Contact resistance
• Failure rate
• Maximum switching capacity
• Maximum switching current
• Maximum switching voltage
• MBB contacts
• Number of poles
• Rated carry current
• Rated load
• Relay contact symbols

Coil

• Coil inductance
• Coil resistance
• Hot start
• Minimum pulse width
• Must operate voltage (Pull-in)
• Must release voltage (Drop-out)
• Rated current
• Rated power consumption
• Rated voltage
• Relay coil symbols

Electrical performance

• Bounce
• Crosstalk characteristic
• Dielectric strength
• Electrical endurance
• Example of measuring high-frequency characteristics
• High frequency isolation
• Impulse withstand voltage
• Insertion loss
• Insulation resistance
• Maximum high-frequency carry power
• Maximum high-frequency switching power
• Mechanical endurance
• Operate bounce time
• Operate time
• Release bounce time
• Release time
• Reset time
• Return loss
• Set time
• Shock resistance
• Stray capacitance
• Switching frequency
• Thermoelectromotive force
• TV rating
• V.S.W.R.
• Vibration resistance

Operation modes

• Double-winding latching relays
• Ratchet relays
• Single-side stable relays (Standard type)
• Single-winding latching relays
• Stepping relays

Enclosures

• Flux protection (PCB relay)
• Hermetically sealed (Plug-in relay)
• Plastic sealed (PCB relay)
• Plastic sealed (Plug-in relay)
• Screw (metal) mounting relay (Enclosed) (Cased)
• Screw (metal) mounting relay (Open)
• Unsealed (Plug-in relay)　(Cased)

Relay Driver Circuits

• Latching relays
• Ratchet relays
• Single-side stable relays (Standard type)
• Stepping relays

• Basics
• Technology
  • Relay Technology – Mechanical Relays (Movable Contacts)
  • Relay Technology – MOS FET Relays (No Movable Contacts)
• Applications
• Standards
• Glossary
  • List
  • Search by alphabetical index
  • Search by Category

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