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 proximity switch • Standard normally open and high voltage normally open contact configuration • Moulded stand-offs to allow board washing • RoHS Compliant • Wave solder capable Agency Approvals Agency Agency File Number E61760 E471070 • 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 • Certified for use in North American Hazardous Locations: Class I, Division 2 and Zone 2 Benefits DEMKO 14 ATEX 1393U II 3 G Ex nC IIC Gc • Hermetically sealed, magnetically operated contacts continue to operate long after optical and other technologies fail due to contamination • Mounts directly into printed circuit board • No standby power requirement • Operates through non-ferrous materials such as wood, plastic or aluminium Note: Contact Littelfuse for specific agency approval ratings. Applications • Door Switch • Position and Limit Sensing • Security System Switch Dimensions Dimensions in mm (inch) D B A B Actuator A Switch D E C C F A Max. B Max. C ±0.25 (.010) D Max. E ±0.38 (.015) F Nom. 57050 Actuator 5.08 (.200) 22.86 (.900) * 4.57 (.180) – – 59050 Switch 4.57 (.180) 22.86 (.900) 20.32 (.800) 4.32 (.170) 3.3 (.130) 0.508 (.020”) Dia. * Mounting: 1.57 (.062) thick board, 3.17 (.125) holes on 18.28 (.720) nom. centres. © 2016 Littelfuse Revised: 04/08/16 Specifications are subject to change without notice. littelfuse.com Overmolded Reed Switches Low Power > 59050 59050 Miniature PCB Mountable Reed Switch + 57050 Actuator Electrical Ratings Contact Type Normally Open High Voltage Normally Open Switch Type 1 2 VA/Watt - max. 10 10 Vdc - max. Vac - max. Vdc - min. 200 140 250 300 265 400 Carry Adc - max. Aac - max. Adc - max. 0.5 0.35 1.2 0.4 0.30 1.4 Resistance Contact, Initial Insulation Ω - max. Ω - min. 0.2 1010 0.2 1010 Capacitance Contact pF - typ. 0.3 0.2 Temperature Operating °C -40 to +105 -20 to +105 Contact Rating Voltage 3 Current 3 1 Switching 2 Breakdown Switching 4 2 Product Characteristics Operate Time 5 ms - max. 1.0 1.0 Release Time 5 ms - max. 1.0 1.0 11ms 1⁄2 sine G - max. 100 100 50-2000 Hz G - max. 30 30 Shock 6 Vibration 6 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 Switch Type S T U Pull-In AT Range Activate Distance, D mm (inch) Average Pull-In AT Range Activate Distance, D mm (inch) Average Pull-In AT Range Activate Distance, D mm (inch) 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 © 2016 Littelfuse Revised: 04/08/16 Specifications are subject to change without notice. littelfuse.com Overmolded Reed Switches Low Power > 59050 59050 Miniature PCB Mountable Reed Switch + 57050 Actuator Part Numbering System Switch: 59050 - X - X - 00 - 0 Actuator: 57050 - 000 Series Series Switch Type 1 or 2 Standard Actuator 000 Note: The 57050 Actuator is sold separately. Sensitivity S, T, or U Product Marking Switch: Actuator: 57050 - 000 59050-X-X-00-0 Part Number Part Number Packaging Packaging Option Packaging Specification Bulk © 2016 Littelfuse Revised: 04/08/16 Specifications are subject to change without notice. Bulk Quantity 200 MOQ=1000 Quantity and Packaging Code N/A Taping Width N/A littelfuse.com