Sign In | Join Free | My
Search by Category
Home > Relays >

Automotive General Purpose Relay 4121 SONG CHUAN Relay SPDT 30A Small Size

Categories General Purpose Relay
Brand Name: ANYO
Model Number: 4121
Place of Origin: CHINA
MOQ: 1000pcs
Price: Negotiation
Payment Terms: L/C, T/T
Supply Ability: 30000PCS per day
Delivery Time: 8-10 work days
Packaging Details: Customized carton
Other name: automotive power relay
Contact ratings: 30A 14VDC
Max.switching voltage: 30VDC
Max.switching current: 30A
Max.switching power: 420W
Initial contact resistance: 100mΩMax
Life expectancy electrical: 100,000 Operations(rated load)
Contact material: Ag alloy
  • Haven't found right suppliers
  • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
  • And this service is free of charge.
  • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
  • Submit Buying Request
    • Product Details
    • Company Profile

    Automotive General Purpose Relay 4121 SONG CHUAN Relay SPDT 30A Small Size

    Automotive relay 4121(SONG CHUAN 804) SPDT 30A, 27.7*23*39.3mm


    Relay is an electromagnetic device which is used to isolate two circuits electrically and connect them magnetically. They are very useful devices and allow one circuit to switch another one while they are completely separate. They are often used to interface an electronic circuit (working at a low voltage) to an electrical circuit which works at very high voltage. For example, a relay can make a 5V DC battery circuit to switch a 230V AC mains circuit. Thus a small sensor circuit can drive, say, a fan or an electric bulb.

    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.


    Suitable for automobile, machine, electronic equipment, air conditioner and household appliances applications. PC board mounting and direct insert mounting available.

    General data:

    Contact form


    Insulation resistance50MΩMin at500VDC
    Dielectric strength between open contacts500VAC 50-60HZ(1 minute)
    Dielectric strength between contacts and coil500VAC 50-60HZ(1 minute)
    Operate time15ms max.
    Release time10ms max.
    Ambient temperature-30°C ~ +85°C
    Shock resistance-Malfuction10G
    Shock resistance-Destruction100G
    Vibration resistance10-55Hz,1.5mm double amplitude
    Ambient humidity40-85% RH
    WeightApprox 35g

    Coil data (@20°C)

    Rated voltage


    Coil Resistance


    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

    Outline dimension(mm):

    PCB board layout and Wiring diagram:

    Quality Automotive General Purpose Relay 4121 SONG CHUAN Relay SPDT 30A Small Size for sale
    Send your message to this supplier
    To: Ningbo Anyo Import & Export Co., Ltd.
    Characters Remaining: (0/3000)
    Find Similar Products By Category:
    Inquiry Cart 0

    Home| Products| Suppliers| Quality Suppliers| Site Map |About Us |Contact Us |Help |关于我们 |联系我们

    Copyright © 2009 - 2019 All rights reserved.