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.


...
Read more Read less

Filters

Viewing 1 - 20 of 630 products
Results per page
Description Price Coil Voltage Contact Configuration Mounting Type Switching Current Maximum Switching Current AC Maximum Switching Current DC Terminal Type Coil Resistance Series Maximum Switching Voltage AC Maximum Switching Voltage DC Application Length Depth
RS Stock No. 173-8170
Mfr. Part No.PA1A5
BrandPanasonic
MYR26.553
Each (In a Tube of 25)
units
5 V dc SPNO PCB Mount 5 A - - Through Hole 208 - - - Power 21mm 5mm
RS Stock No. 156-5126
Mfr. Part No.PA1A5
BrandPanasonic
MYR39.72
Each
units
5 V dc SPNO PCB Mount 5 A - - Through Hole 208 Ω - - - Power 21mm 5mm
RS Stock No. 178-2012
Mfr. Part No.CB112
BrandPanasonic
MYR31.28
Each
units
12 V dc SPDT Plug In 40 A - - Quick Connect 103 Ω CB - - Automotive 26mm 22mm
RS Stock No. 173-9223
Mfr. Part No.DSP1-DC12V-F
BrandPanasonic
MYR40.435
Each (In a Box of 50)
units
12 V dc SPDT PCB Mount 5 A - - - 480 Ω - 250V 125V Industrial Equipment 20.2mm 11mm
RS Stock No. 811-3139
Mfr. Part No.DSP1-DC12V-F
BrandPanasonic
MYR44.74
Each
units
12 V dc SPDT PCB Mount 5 A - - - 480 Ω - 250V 125V Industrial Equipment 20.2mm 11mm
RS Stock No. 173-8174
Mfr. Part No.TX25
BrandPanasonic
MYR26.814
Each (In a Tube of 40)
units
5 V dc DPDT PCB Mount 2 A - - Through Hole 178 - - - General Purpose 15mm 7.4mm
RS Stock No. 178-1918
Mfr. Part No.TX25
BrandPanasonic
MYR20.33
Each
units
5 V dc DPDT PCB Mount 2 A - - Through Hole 178 Ω - - - General Purpose 15mm 7.4mm
RS Stock No. 127-8888
Mfr. Part No.DS2E-S-DC24V
BrandPanasonic
MYR24.70
Each
units
24 V dc DPDT PCB Mount 3 A - - Through Hole 2.88 kΩ DS - - General Purpose 20mm 9.9mm
RS Stock No. 173-8159
Mfr. Part No.DS2E-S-DC24V
BrandPanasonic
MYR15.528
Each (In a Box of 50)
units
24 V dc DPDT PCB Mount 3 A - - Through Hole 2.88 k - - - General Purpose 20mm 9.9mm
RS Stock No. 815-5117
Mfr. Part No.JS1-12V-F
BrandPanasonic
MYR7.80
Each
units
12 V dc SPDT PCB Mount 5 A - - PCB Pin 400 Ω - 250V 100V Domestic Appliances, Heating Control, Office Equipment 22mm 16mm
RS Stock No. 173-9225
Mfr. Part No.JW2ASN-DC24V
BrandPanasonic
MYR16.244
Each (In a Box of 100)
units
24 V dc DPNO PCB Mount 5 A - - - 1.1 kΩ - 250V 30V Domestic Appliances 28.6mm 12.8mm
RS Stock No. 811-3163
Mfr. Part No.JW2ASN-DC24V
BrandPanasonic
MYR10.90
Each
units
24 V dc DPNO PCB Mount 5 A - - - 1.1 kΩ - 250V 30V Domestic Appliances 28.6mm 12.8mm
RS Stock No. 127-9516
Mfr. Part No.SP2-P-DC24V
BrandPanasonic
MYR161.84
Each
units
24 V dc DPDT PCB Mount 15 A - - Through Hole 1.92 kΩ - - - Power 51mm 25.6mm
RS Stock No. 173-8926
Mfr. Part No.CB1M24
BrandPanasonic
MYR29.553
Each (In a Box of 50)
units
24 V dc SPDT Panel Mount 20 A - - Quick Connect 320 - - 28V dc Automotive 22mm 26
RS Stock No. 173-8156
Mfr. Part No.SP2-P-DC24V
BrandPanasonic
MYR124.254
Each (In a Box of 20)
units
24 V dc DPDT PCB Mount 15 A - - Through Hole 1.92 k - - - Power 51mm 25.6mm
RS Stock No. 699-5963
Mfr. Part No.CB1M24
BrandPanasonic
MYR38.85
Each
units
24 V dc SPDT Panel Mount 20 A - - Quick Connect 320 Ω - - 28V dc Automotive 22mm 26mm
RS Stock No. 173-9218
Mfr. Part No.CB1AH-P-12V
BrandPanasonic
MYR29.884
Each (In a Box of 50)
units
12 V dc SPST PCB Mount 70 A - - Through Hole 103 - - 14V Automotive 26mm 22mm
RS Stock No. 811-3135
Mfr. Part No.CB1-R-M-12V
BrandPanasonic
MYR17.73
Each
units
12 V dc SPDT PCB Mount 40 A - - Quick Connect 103 Ω - - 14V Automotive 26mm 22mm
RS Stock No. 811-3090
Mfr. Part No.CB1AH-P-12V
BrandPanasonic
MYR31.55
Each
units
12 V dc SPST PCB Mount 70 A - - Through Hole 103 Ω - - 14V Automotive 26mm 22mm
RS Stock No. 173-9222
Mfr. Part No.CB1-R-M-12V
BrandPanasonic
MYR27.559
Each (In a Box of 50)
units
12 V dc SPDT PCB Mount 40 A - - Quick Connect 103 - - 14V Automotive 26mm 22mm