PCB Power Relays are most popular in Power industries as it carries maximum currents from 10 AMP to 40 AMP. Popular applications are UPS, Inverter, heating, ventilating & conditioning systems etc. Sugarcube relays are used for general purpose & mainly fits in small applications. It carries maximum currents from 5AMP to 12AMP. Popular applications are home appliances, control units etc.
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A printed circuit board power relay is an electrical component used in electronic circuits to control high power loads. It serves as an electrically controlled switch that allows a low power control signal to switch on or off a higher power circuit. Power relays are commonly used in various applications where there is a need to control significant amounts of current.
- Coil : The relay coil is an electromagnet that generates a magnetic field when energized. It is designed to require low current to activate, making it suitable for control signals from microcontrollers or other electronic components.
- Contacts : Power relays have one or more sets of contacts, which are switch terminals. When the coil is energized, the contacts change their position, allowing current to flow through the relay.
- Actuator or Armature : The actuator is a moving part of the relay that is attracted to the coil when it is energized. When the actuator moves, it opens or closes the contacts, thus controlling the current flow.
- Housing : The coil, contacts and actuator are enclosed within a housing that is mounted on a printed circuit board. The housing provides mechanical protection and keeps the internal components of the relay in place.
Printed circuit board power relays are commonly used in various applications such as home automation systems, industrial automation, power supply units, motor control circuits, lighting control and more. They are available in different configurations right upto multi pole multi throw relays, depending on the specific requirements of the circuit they are intended to control.
L90
L91
L91 H
L93
L93H
LCJ
LI20
LJ5-L / L1
LQ5
SC5
SC5 - ECO
SC10
SC15
LCN
L93FL
SCM
L4A
L97T-70A
SC20
LMIH
- Integration Ease : PCB power relays are specifically designed for easy integration onto printed circuit boards, streamlining the manufacturing and assembly processes.
- Space Efficiency : The compact size and low profile of PCB power relays contribute to efficient use of PCB real estate, enabling more compact and lightweight designs.
- Reduced Wiring : By directly mounting the relay onto the PCB, the need for additional wiring and connectors is minimized, reducing potential points of failure and simplifying assembly.
- Enhanced Reliability : PCB power relays are manufactured with high quality materials and undergo stringent testing, ensuring reliable operation and longevity.
- Automation Compatibility : PCB power relays can be easily integrated into automated assembly processes, improving production efficiency.
- Cost-Effectiveness : Integrating power relays directly onto the PCB can lead to cost savings in terms of reduced component count, simplified assembly and potentially lower material costs.
- Compatibility : They can be easily integrated with other electronic components on the same PCB, facilitating seamless communication and control within the circuit.
- Customization : PCB power relays can be customized to meet specific application requirements such as coil voltage, contact material and contact ratings.
- Signal Integrity : By being closely integrated into the PCB layout, PCB power relays can help maintain signal integrity and minimize electromagnetic interference.