Non-Latching Relays

Relays are electrical switches that are operated by electrical impulses with the primary function to open and close a circuit, they can also be referred to as industrial switches. There are 2 main types available, latching and non–latching relays.


How do non-latching relays work?


Non-latching relays are in a normally closed (NC) position and will stay in this state without power. When power passes through the circuit, the relay switched to a normally open (NO) position by using an internal coil to generate a magnetic force, holding this NO position. Once the current is turned off, it returns to the NC position. This makes non-latching relays well suited to push-button applications like keyboards and micro-controller input buttons.


What are non-latching relays used for?


Non-latching relays are highly durable and versatile components, making their performance long lasting and suitable for use in a wide range of applications, such as:


  • Automotive engines

  • Household appliances

  • Industrial machinery

  • Medical equipment

  • Telecommunications equipment

What is the difference between latching and non-latching relays?


Both types of relays in similar in design and function, however, a significant difference between them is that a latching relay will remain in the last position it when it was last powered, whereas a non-latching goes back to its normal position. This makes each more type of relay suitable for different applications.


Considerations when selecting a relay


When choosing a relay, it is important to consider a number of specifications to ensure it is fit for purpose, some factors include:


  • Coil voltage - the required voltage to actuate the switching mechanism. If a voltage is too high this could damage the components, if it is too low then it will not actuate.

  • Contact configuration - This is the state the contacts are in without power. For example SPST, single pole single throw.

  • Contact material - the relay contacts are available in many materials that have certain properties. Common materials are gold, silver, tin oxide and nickel

  • Coil power - the amount of power (watts) the coil operates at. This must match the power in the circuit for correct function.

  • Coil resistance - the amount of resistance (ohms) in the circuit that the coil creates.


...
顯示內容 隱藏內容

篩選條件

正在檢視 1 - 16,共 16 項產品
Results per page
Description Price Coil Voltage Coil Power Contact Configuration Coil Resistance Mounting Type Switching Current Isolation Coil To Contact Terminal Type Series Maximum Switching Voltage AC Maximum Switching Voltage DC Application Number of Poles Length
RS庫存編號 870-5380
製造零件編號EC2-5NU
BrandKEMET
HK$12.795
/個 (每包:50個)
單位
5 V dc 140mW DPDT 178 Ω PCB Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5368
製造零件編號EC2-24SNU
BrandKEMET
HK$32.39
單位
24 V dc 150mW DPDT 3.84 kΩ PCB Mount 2A 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5393
製造零件編號EC2-5TNU
BrandKEMET
HK$21.55
/個 (每包:10個)
單位
5 V dc 140mW DPDT 178 Ω PCB Mount - 1kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5441
製造零件編號EE2-3NU-L
BrandKEMET
HK$17.611
/個 (每包:10個)
單位
3 V dc 140mW DPDT 64.3 Ω Surface Mount - 1.5kV ac SMD Tab - 250V 220V - 1 15mm
RS庫存編號 870-5517
製造零件編號EE2-5TNU-L
BrandKEMET
HK$19.85
/個 (每包:10個)
單位
5 V dc 140mW DPDT 178 Ω Surface Mount - 1kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5365
製造零件編號EC2-24NU
BrandKEMET
HK$19.874
/個 (每包:10個)
單位
24 V dc 200mW DPDT 2.88 kΩ PCB Mount 2 A 1.5kV ac PCB Pin - 250V 220V Electronic Switching Systems, PBX, Telecommunications, Terminal Equipment 1 15mm
RS庫存編號 870-5352
製造零件編號EC2-12SNU
BrandKEMET
HK$15.68
/個 (每包:10個)
單位
12 V dc 100mW DPDT 1.44 kΩ PCB Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5359
製造零件編號EC2-12NU
BrandKEMET
HK$15.347
/個 (每包:10個)
單位
12 V dc 140mW DPDT 1.028 kΩ PCB Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5508
製造零件編號EE2-5TNUH-L
BrandKEMET
HK$19.453
/個 (每包:10個)
單位
5 V dc 140mW DPDT 178 Ω Surface Mount - 1kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5485
製造零件編號EE2-5NUH-L
BrandKEMET
HK$15.40
/個 (每包:50個)
單位
5 V dc 140mW DPDT 178 Ω Surface Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5396
製造零件編號EE2-12NU
BrandKEMET
HK$14.759
/個 (每包:10個)
單位
12 V dc 140mW DPDT 1.028 kΩ Surface Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5378
製造零件編號EC2-4.5NU
BrandKEMET
HK$15.40
/個 (每包:10個)
單位
4.5 V dc 140mW DPDT 145 Ω PCB Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5425
製造零件編號EE2-24NU
BrandKEMET
HK$14.03
/個 (每包:10個)
單位
24 V dc 200mW DPDT 2.88 kΩ Surface Mount 2A 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5362
製造零件編號EC2-3NU
BrandKEMET
HK$14.504
/個 (每包:50個)
單位
3 V dc 140mW DPDT 64.3 Ω PCB Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5356
製造零件編號EC2-12TNU
BrandKEMET
HK$17.023
/個 (每包:10個)
單位
12 V dc 140mW DPDT 1.028 kΩ PCB Mount 2A 1kV ac PCB Pin - 250V 220V - 1 15mm
RS庫存編號 870-5481
製造零件編號EE2-5NU
BrandKEMET
HK$11.47
/個 (每包:50個)
單位
5 V dc 140mW DPDT 178 Ω Surface Mount - 1.5kV ac PCB Pin - 250V 220V - 1 15mm