Magnetic Switch #4971518

A miniature, PCB mount reed switch 17.78mm x 4.32mm x 3.30mm (0.700" x 0.170" x 0.130") with a normally open contact. Contains molded stand-offs to allow board washing. Available with customer-defined sensitivity. Capable of switching up to 200Vdc at 10W. Available with a range of sensitivity options. Well suited for position and limit sensing, security, door and window alarm systems. Functions best with the 57045 actuator.
Note: The 57045 actuator is sold separately.

Littelfuse Reed Switches 59050 datasheet
Order Sample
A small, PCB mount reed switch 22.86mm x 6.73mm x 4.57mm (0.900" x 0.265" x 0.180") with a choice of normally open, normally closed or changeover contacts. Contains molded stand-offs to allow board washing. Available with customer-defined sensitivity. Capable of switching up to 265Vac300Vdc at 10VA. Available with a range of sensitivity options. Well suited for position and limit sensing, security, door and window alarm systems. Functions best with the 57050 actuator.
Note: The 57050 actuator is sold separately.

Features:

Molded stand-offs to allow board washing
Hermetically sealed contacts
Customer-defined sensitivitySuitable for mounting directly onto printed circuit boards
Well suited for usage in high-moisture and contaminated environments
Excellent for switching micro-controller logic level loads
Applications:

Position and limit switching
Security

Littelfuse Reed Switches 59165 datasheet
Order Sample
A miniature overmolded reed sensor 16.00mm x 2.41mm x 2.41mm (0.630" x 0.095" x 0.095") with straight, staple-form, or gull-wing leads. Provided with normally open contacts. Capable of switching up to 200Vdc at 10W. Its package contains molded stand-offs to allow board washing. Available with a range of sensitivity options, including customer-defined sensitivity. Well suited for position and limit sensing, security, and doorwindow alarm systems. Functions best with the 57045 actuator.
Note: The 57045 actuator is sold separately.

Features:

Two-part, magnetically-operated proximity sensor
Gull-wing, straight, or staple-form lead options
Molded stand-off to allow board washing
Customer-defined sensitivity
Suitable for reflow soldering
Benefits:

Well suited for usage in high-moisture and contaminated environments
Reed contacts last for millions of operating cycles under micro-controller voltage and current logic-level loads
Suitable for pick-and-place assembly
Applications:

Position and limit switching
Security
Door switch

A miniature overmolded reed sensor 16.00mm x 2.40mm x 2.40mm (0.630" x 0.094" x 0.094") with straight or gull-wing leads. Provided with normally open contacts. Capable of switching up to 200Vdc at 10W. Its package contains molded stand-offs to allow board washing. Available with a range of sensitivity options, including customer-defined sensitivity. Well suited for position and limit sensing, security, and doorwindow alarm systems. Functions best with the 57045 actuator.
Note: The 57045 actuator is sold separately.

Features:

Two-part, magnetically-operated proximity sensor
Gull-wing or straight lead options
Molded stand-off to allow board washing
Customer-defined sensitivity
Suitable for reflow soldering
Benefits:

Well suited for usage in high-moisture and contaminated environments
Reed contacts last for millions of operating cycles under micro-controller voltage and current logic-level loads
Suitable for pick-and-place assembly
Applications:Position and limit switching
Security
Door switch

Changeover Reed Switch A standard changeover switch with a 39.67mm long x 5.33mm diameter (1.562" x 0.210") glass envelope, with tungsten contacts capable of high voltage and power switching up to 500Vdc at 50W. Minimum breakdown voltage of 1000Vdc. Available sensitivity range of 50-80 AT. Insulation resistance of 1 Gigaohm minimum and contact resistance less than 500 milliohms. Ideally suited for security, limit sensing, industrial, white goods and automotive applications.
Features:

Changeover switch capable of switching 500Vdc or 1.5A at up to 50 Watts
Minimum breakdown voltage of 1000Vdc
Available sensitivity range of 50-80 AT
Benefits:

Hermetically sealed switch contacts are not affected by and have no effect on their external environment
Can be used as changeover or normally closed contact
Capable of switching global mains voltage
Zero operating power required for contact closure
Applications:

Security
Limit switching
Industrial safety
White goods

A sub-miniature, normally open switch with a 14.00mm long x 2.28mm diameter (0.551" x 0.090") glass envelope and longer than standard, flexible, easily formed leads, capable of switching 200Vdc at 10W. Available sensitivity range of 10-30 AT. High insulation resistance of 1010 ohms minimum and low contact resistance of less than 100 milliohms. Ideally suited for signal switching applications. Also suitable for reed relays, security, metering, limit sensing, telecom, office equipment and household appliances.ormally open switch
Longer than standard, easily formed leads
Capable of switching 200Vdc or 0.5A at up to 10 Watts
Available sensitivity range of 50-80 AT
Benefits:

Hermetically sealed switch contacts are not affected by and have no effect on their external environment
Soft leads enable reliable hand forming
Zero operating power required for contact closure
Excellent for switching micro-controller logic level loads
Applications:

Reed relays
Security
Limit switching
Telecom
Office equipment
Household appliancesb

Littelfuse Reed Switches HA15-2 datasheet
Order Sample
A sub-miniature, normally open switch with a 15.24mm long x 2.28mm diameter (0.600" x 0.090") glass envelope. Capable of high voltage switching of 265Vac at up to 20VA. Available sensitivity range of 17-33 AT. High insulation resistance of 1010 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relays, security, metering, limit sensing, telecom and office equipment applications. Will handle light inductive loads with no suppression circuitry and is capable of switching global mains voltage.
Features:

Normally open switch capable of switching 265Vac or 0.35A at up to 20 Volt-Amperes
Minimum breakdown voltage of 400Vdc
Available sensitivity range of 17-33 AT
Benefits:

Hermetically sealed switch contacts are not affected by and have no effect on their external environment
Capable of switching global mains voltage
Zero operating power required for contact closure
Applications:

Reed relays
Security
Limit switching
Industrial safety
Telecom
Office equipment

A miniature, normally open switch with a 19.69mm long x 2.84mm diameter (0.770" x .112") glass envelope. Capable of switching up to 200Vdc at 50W. It is rated to carry 3A and switch 1.5A. Available sensitivity range of 22-43 AT. High insulation resistance of 1010 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for limit sensing, telecom, office equipment and automotive applications. Will handle light inductive loads with no suppression circuitry.
Features:

Normally open switch capable of switching 200Vdc or 1.5A at up to 50 Watts
Available sensitivity range of 22-43 AT
Benefits:

Hermetically sealed switch contacts are not affected by and have no effect on their external environment
Zero operating power required for contact closure
Applications:

Limit switching
Telecom
Office equipment
Light inductive loads

A sub-miniature, normally open switch with a 15.24mm long x 2.54mm diameter (0.600" x 0.100") glass envelope. Capable of switching 200Vdc at 20W with close-differential characteristics. Available sensitivity range of 17-38 AT. High insulation resistance of 1010 ohms minimum and contact resistance of less than 100 milliohms. Available in surface mount version (MLSM-4). Ideally suited for reed relays, security, metering, limit sensing, telecom and office equipment applications. Will handle lamp loads up to 2W @ 14V with no suppression circuitry.Low closeopen hysteresis (close differential)
Normally open switch capable of switching 200Vdc or 1.0A at up to 20 Watts
Available sensitivity range of 17-38 ATHermetically sealed switch contacts are not affected by and have no effect on their external environment
Zero operating power required for contact closure

A miniature, normally open switch with a 19.69mm long x 2.66mm diameter (0.775" x 0.105") glass envelope. Capable of high voltage switching of up to 1000Vdc at 1mA. Available sensitivity range of 17-38 AT. High insulation resistance of 1012 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relay high breakdown voltage applications, security, metering, limit sensing, telecom and office equipment and automotive applications.
Features:

Normally open switch capable of switching 1000Vdc up to 1mA
Minimum breakdown voltage of 2000Vdc
Available sensitivity range of 17-38 AT
A miniature, normally open switch with a 19.69mm long x 2.66mm diameter (0.775" x 0.105") glass envelope. Capable of high voltage switching of up to 1000Vdc at 1mA. Available sensitivity range of 17-38 AT. High insulation resistance of 1012 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relay high breakdown voltage applications, security, metering, limit sensing, telecom and office equipment and automotive applications.
Features:

Normally open switch capable of switching 1000Vdc up to 1mA
Minimum breakdown voltage of 2000Vdc
Available sensitivity range of 17-38 AT
A miniature, normally open switch with a 19.69mm long x 2.66mm diameter (0.775" x 0.105") glass envelope. Capable of high voltage switching of up to 1000Vdc at 1mA. Available sensitivity range of 17-38 AT. High insulation resistance of 1012 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relay high breakdown voltage applications, security, metering, limit sensing, telecom and office equipment and automotive applications.
Features:

Normally open switch capable of switching 1000Vdc up to 1mA
Minimum breakdown voltage of 2000Vdc
Available sensitivity range of 17-38 AT
A miniature, normally open switch with a 19.69mm long x 2.66mm diameter (0.775" x 0.105") glass envelope. Capable of high voltage switching of up to 1000Vdc at 1mA. Available sensitivity range of 17-38 AT. High insulation resistance of 1012 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relay high breakdown voltage applications, security, metering, limit sensing, telecom and office equipment and automotive applications.
Features:

Normally open switch capable of switching 1000Vdc up to 1mA
Minimum breakdown voltage of 2000Vdc
Available sensitivity range of 17-38 AT.A miniature, normally open switch with a 19.69mm long x 2.66mm diameter (0.775" x 0.105") glass envelope. Capable of high voltage switching of up to 1000Vdc at 1mA. Available sensitivity range of 17-38 AT. High insulation resistance of 1012 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relay high breakdown voltage applications, security, metering, limit sensing, telecom and office equipment and automotive applications.
Features:

Normally open switch capable of switching 1000Vdc up to 1mA
Minimum breakdown voltage of 2000Vdc
Available sensitivity range of 17-38 AT

Littelfuse Reed Switches MACD-14 datasheet
Order Sample
A sub-miniature, close-differential, normally open switch with a 14.00mm long x 2.28mm diameter (0.551" x 0.090") glass envelope capable of switching 200Vdc at 10W. Available sensitivity range of 10-30 AT. High insulation resistance of 1010 ohms minimum and low contact resistance of less than 100 milliohms. Available in surface mount version (MASM-14). Ideally suited for position, proximity, float position sensing for liquid level, industrial controls, office equipment, home appliance, and telecom applications.
Features:

Low closeopen hysteresis (close differential)
Normally open switch capable of switching 200Vdc or 0.5A at up to 10 Watts
Available sensitivity range of 10-30 AT
Benefits:

Hermetically sealed switch contacts are not affected by and have no effect on their external environment
Zero operating power required for contact closure
Excellent for switching micro-controller logic level loads
Applications:

Position sensing
Security

Littelfuse Reed Switches HA15-2 datasheet
Order Sample
A sub-miniature, normally open switch with a 15.24mm long x 2.28mm diameter (0.600" x 0.090") glass envelope. Capable of high voltage switching of 265Vac at up to 20VA. Available sensitivity range of 17-33 AT. High insulation resistance of 1010 ohms minimum and contact resistance of less than 100 milliohms. Ideally suited for reed relays, security, metering, limit sensing, telecom and office equipment applications. Will handle light inductive loads with no suppression circuitry and is capable of switching global mains voltage.Normally open switch capable of switching 265Vac or 0.35A at up to 20 Volt-Amperes
Minimum breakdown voltage of 400Vdc
Available sensitivity range of 17-33 AT
Benefits:

Hermetically sealed switch contacts are not affected by and have no effect on their external environment
Capable of switching global mains voltage
Zero operating power required for contact closure
Applications:

Reed relays
Security
Limit switching
Industrial safety

AlNiCo-5 magnet in a rectangular package with mounting clips to facilitate easy installation onto printed circuit boards. Overall dimensions of 17.78mm L x 3.30mm W x 4.32mm H. Recommended for use with the 59045 overmolded reed switch

AlNiCo-5 magnet in a rectangular package with mounting clips to facilitate easy installation onto printed circuit boards. Overall dimensions of 22.86mm L x 4.57mm W x 4.57mm H. Recommended for use with the 59050 overmolded reed switch

The 59170 is a sub-miniature overmolded reed switch 11.43mm x 2.29mm x
2.29mm (0.450 x 0.090 x 0.090) with either straight or Gull Wing leads. It has
normally open contact and capable of switching up to 200Vdc at 10W. Two-part magnetically operated
proximity switch
Gull Wing, leaded
Tape and reel option
Solder reflow capable
Thermoset overmolded material
RoHS compliant Certified for use in North American
Hazardous Locations: Class I,
Division 2 and Zone 2
ATEX certified for use in European
explosive atmospheres: II 3 G Ex
nC IIC Gc Suitable for pick and place
No standby power requirement
Operates through non-ferrous
materials such as wood, plastic
or aluminium
Hermetically sealed, magnetically
operated contacts continue to
operate long after optical and other
technologies fail due to
contamination
Applicati

We have a wide array of sensor output options such as reed and Hall effect digital output, single- and multi-point reed ladder fluid level measurement, ratio-metric output for rotary angle and linear measurement using Hall effect devices, and speed and direction sensing.

Types of Customization:
Modifications to existing standard product packages, such as adding connectors or changing wire size or length, as well as offering special reed switch sensitivities, custom lead forming and bending or modifications to bare reed switches
Fully new custom sensor package designs andor circuitry
Magnetic circuit (actuator magnet and sensor) design for a variety of applications
See our full range of sensor manufacturing process capabilities