Overmolded Reed Switches Low Power > 59050 59050 Miniature PCB Mountable Reed Switch + 57050 Actuator Description The 59050 is a miniature PCB-mountable reed switch, 22.86mm x 4.57mm x 4.32mm (0.900 x .180 x .170) with a choice of normally open, and normally open high voltage contacts. It has moulded stand-offs to allow board washing. It is capable of switching up to 265Vac/300Vdc at 10VA. It functions best with the matching actuator 57050-000. Note: The 57050 Actuator is sold separately. Features Two-part magnetically operated Certified for use in North American proximity switch Hazardous Locations: Class I, Standard normally open and high Division 2 and Zone 2 voltage normally open contact ATEX certified for use in European configuration explosive atmospheres: II 3 G Agency Approvals Moulded stand-offs to allow Ex nC IIC Gc board washing Certified for use in North American Agency Agency File Number RoHS Compliant Hazardous Locations: Class I, Wave solder capable Division 2 and Zone 2 E61760 E471070 Benefits DEMKO 14 ATEX 1393U II 3 G Ex nC IIC Gc Mounts directly into printed Hermetically sealed, magnetically circuit board operated contacts continue to Note: Contact Littelfuse for specific agency approval ratings. No standby power requirement operate long after optical and other Operates through non-ferrous technologies fail due materials such as wood, plastic to contamination or aluminium Applications Position and Limit Sensing Door Switch Security System Switch Dimensions Dimensions in mm (inch) D B D B Actuator A Switch A E C C F A B C D E F Max. Max. 0.25 (.010) Max. 0.38 (.015) Nom. 5.08 22.86 4.57 57050 Actuator * (.200) (.900) (.180) 4.57 22.86 20.32 4.32 3.3 0.508 59050 Switch (.180) (.900) (.800) (.170) (.130) (.020) Dia. * Mounting: 1.57 (.062) thick board, 3.17 (.125) holes on 18.28 (.720) nom. centres. 2020 Littelfuse Revised: 01/07/20 littelfuse.com Specifications are subject to change without notice.Overmolded Reed Switches Low Power > 59050 59050 Miniature PCB Mountable Reed Switch + 57050 Actuator Electrical Ratings Normally Open Contact Type Normally Open High Voltage Switch Type 1 2 1 Contact Rating VA/Watt - max. 10 10 2 Switching Vdc - max. 200 300 3 Voltage Vac - max. 140 265 4 Breakdown Vdc - min. 250 400 2 Switching Adc - max. 0.5 0.4 3 Current Aac - max. 0.35 0.30 Carry Adc - max. 1.2 1.4 Contact, Initial - max. 0.2 0.2 Resistance 10 10 Insulation - min. 10 10 Capacitance Contact pF - typ. 0.3 0.2 Temperature Operating C -40 to +105 -20 to +105 Product Characteristics 5 Operate Time ms - max. 1.0 1.0 5 Release Time ms - max. 1.0 1.0 6 Shock 11ms 12 sine G - max. 100 100 6 Vibration 50-2000 Hz G - max. 30 30 Notes: 1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information. 2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details. 3. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load. 4. Breakdown Voltage - per MIL-STD-202, Method 301. 5. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A, diode suppressed coil (Coil II). 6. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202. Sensitivity Options (Using 57050 Actuator) Select Option S T U Activate Distance, D Activate Distance, D Activate Distance, D Pull-In Pull-In Pull-In Switch Type mm (inch) mm (inch) mm (inch) AT Range AT Range AT Range Average Average Average 1 Normally Open 12-18 7.2 (.283) 17-23 5.8 (.228) 22-28 4.8 (.189) 2 High Voltage 17-23 5.8 (.228) 22-28 4.8 (.189) Note: Pull-In Range - Contact Littelfuse for narrower AT ranges available. These AT values are the before molding and modification AT of the 59050. Switch Actuator D 2020 Littelfuse Revised: 01/07/20 littelfuse.com Specifications are subject to change without notice.