Reed Switch

Reed Switch
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Product Code : RS-3.0-20-G
Brand Name : ODM, OEM
Price And Quantity
  • Minimum Order Quantity
  • 1000 Piece
  • Price
  • 0.086~0.11 USD ($)/Piece
Product Specifications
  • Max. Current
  • 0.5A Ampere (amp)
  • Material
  • Ru
  • Insulation Resistance
  • 10ˆ9Ω
  • Contact Resistance
  • 150MΩ Megaohm (MΩ)
  • Max. Voltage
  • 180VDC/130VAC Volt (V)
  • Operating Temperature
  • -60°C-+125°C Celsius (oC)
  • Size
  • 3.0*20mm
  • Color
  • green glass, or white glass, and golden wire, or sliver wire
  • Weight
  • 1.5kg Kilograms (kg)
Product Description

20mm Golden Reed Switches are also known as magnetic reed switches that are required for controlling electricity flow in a circuit. They are covered by a hermetically sealed glass envelope which protects them from environmental corrosion and moisture. In electronic devices like laptop, these switches work for keeping it hibernated when its screen is closed. 20mm Golden Reed Switches work through materials like wood, plastic, & aluminum and generally help in preventing disasters caused by uneven flow of current through switches.



  • Ideal for battery powered applications
  • High resistance to contaminated environment
  • Completely trustworthy



We, Hangzhou Red Fir is main supplier of Reed switches in China. 

We are developing, and manufacturing a wide range of high-quality, high-reliability reed switches for our customers. Current main market is india.

Main size:  


  • 2.0*10mm
  • 2.0*14mm
  • 3.0*20mm
  • 4.0*28mm
  • 5.0*50mm


1. Robust design

2. Low maintenance

3. Accurate dimensions

4. Easy to install nature

Reed Switch Features
Ability to switch up to 10,000 Volts
Ability to switch currents up to 5 Amps
Ability to switch or carry as low as 10 nanoVolts without signal  loss
Ability to switch or carry  as low as 1 femtoAmp without signal loss
Ability to switch or carry up to 7 GigaHz with minimal signal loss
Isolation across the contacts up to 1015 Î©
Contact resistance (on resistance) typical 50 milliOhms (mΩ).
In its off state it requires no power or circuitry
Ability to offer a latching feature
Operate time in the 100 µs to 300 µs range
 Ability to operate over extreme temperature ranges from -55 Â°C to 200 Â°C
Ability to operate in all types of environments including air, water, vacuum, oil, fuels, and dust laden atmospheres
 Ability to withstand shocks up to 200 Gs
Ability to withstand vibration environments of 50 Hz to 2000 Hz    at up to 30 Gs
Long life.  With no wearing parts, load switching under 5 Volts at 10 mA, will operate well into the billions of operation
Reed Switch Structure and Principle of Operation
TheoryCurrent Sensor
OutputDigital Sensor
Cintact Resistance35m Max
Dielectric Strength1500VAC,1minute


Trade Information
  • FOB Port
  • Shanghai
  • Supply Ability
  • 250000 Piece Per Day
  • Delivery Time
  • 3 Days
  • Sample Available
  • Yes
  • Sample Policy
  • Free samples are available
  • Packaging Details
  • Brown carton with bubble bag
  • Main Domestic Market
  • All India


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