|Other Name:||Electromagnetic Power Relay||Contact Ratings:||10A 120VAC|
|Max.switching Voltage:||250VAC/30VDC||Max.switching Current:||10A|
|Max.switching Power:||240W||Initial Contact Resistance:||50mΩMax|
|Life Expectancy Electrical:||100,000 Operations(rated Load)||Contact Material:||Ag Alloy|
electromagnetic power relay,
automotive starter relay
General purpose relay T72(SONG CHUAN 843) SPDT 10A, 22*16.9*14.9mm
A relay is an electromagnetic switch operated by a relatively small electric current that can turn on or off a much larger electric current. The heart of a relay is an electromagnet (a coil of wire that becomes a temporary magnet when electricity flows through it). You can think of a relay as a kind of electric lever: switch it on with a tiny current and it switches on ("leverages") another appliance using a much bigger current.
Single Pole Double Throw (SPDT):
Such relay consists of a pair of coil pins, a common pin, a normally open (NO) pin and a normally closed (NC) pin. When the relay is not activated, the common pin is in contact with the NC pin and when it is activated, the common pin will break away from contact with the NC pin and subsequently makes contact with the NO pin. Also, when the relay is deactivated (from activated state), the common pin will conversely break away from contact with the NO pin and return back in contact with the NC pin.
• Low coil power consumption
• High sensitivity.
• Small size, light weight.
• PC board mounting.
Relays are used in electronics to switch a smaller current which in turn will control larger current. They prevent the user to have direct contact to the main device being controlled that might be holding high voltage. These devices are comparable to a remote c ontrol which is used to make a big electronic equipment work.
|Insulation resistance||100MΩMin at500VDC|
|Dielectric strength between open contacts||750VAC 50-60HZ(1 minute)|
|Dielectric strength between contacts and coil||2000VAC 50-60HZ(1 minute)|
|Operate time||7ms max.|
|Release time||4ms max.|
|Ambient temperature||-40°C ~ +85°C|
|Vibration resistance||10-55Hz,1.5mm double amplitude|
|Ambient humidity||40-85% RH|
Coil data (@20°C)
|Max Operate Voltage (VDC)||Min Release Voltage (VDC)||Max Applied Voltage (VDC)|
1.The use of any coil voltage less than the rated coil voltage will compromise the operation of the relay.
2.Pickup and release voltage are for test purposes only and are not to be used as design criteria.
3.Unless otherwise stated, the rated coil voltage specified in coil parameter tableshall be used for all tests and its application to the relay
PCB board layout and Wiring diagram:
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