Axial Lead Reed Switches High Power > DRS-50 DRS-50 50.8mm High Power Reed Switch 06/25/2020 LFPCN 41367 RoHS Not Replaced Description The DRS-50 Reed Switch is a standard, normally open switch with a 50.80mm long x 5.25mm diameter (2.000 x .207) glass envelope, capable of high voltage and power switching up to 400Vdc at 2mA. Will carry 6A and switch up to 10 100W/VA. It has high insulation resistance of 10 ohms minimum and contact resistance of less than 100 milli-ohms. Features Normally open switch Available sensitivity range Capable of switching 400Vdc or 42-83 AT 3.0A at up to 100W Minimum voltage breakdown 600Vdc Agency Approvals Benefits Agency Agency File Number Ampere-Turns Range Hermetically sealed switch Capable of switching European E47258 contacts are not affected by and mains voltage 42-83 AT E471070 have no effect on their external Zero operating power required for environment contact closure DEMKO 14 ATEX 1393U 42-83 AT Applications Note: Contact Littelfuse for specific agency approval ratings. Industrial applications Security White Goods Limit switching Dimensions Dimensions in mm (inch) CL OF OVERLAP 5.25 0.53 41.27 Switch Type (.207) MAX. (.021) REF. (1.625) REF. 12.70 (.500) REF. Contact Form A (SPST-NO) 15.24 50.80 Body: Glass Materials (.600) MIN. (2.000) MAX. Leads: Tin-plated Ni-Fe wire 82.55 (3.250) MAX. Note: SPST-NO = Single-pole, single-throw, normally open Electrical Ratings 1 Contact Rating W/VA - max. 100 2 Switching Vdc - max. 400 3 Voltage Vac - max. 280 4 Breakdown Vdc - min. 600 2 Switching Adc - max. 3.0 3 Current Aac - max. 2.1 Carry Adc - max. 6.0 Contact, Initial - max. 0.100 Resistance 10 Insulation - min. 10 Capacitance Contact pF - typ. 0.6 Operating C -40 to +125 Temperature 5 Storage C -65 to +125 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. Storage Temperature - Long time exposure at elevated temperature may degrade solderability of the leads 2021 Littelfuse Revised: 02/23/21 littelfuse.com Specifications are subject to change without notice.Axial Lead Reed Switches High Power > DRS-50 DRS-50 50.8mm High Power Reed Switch Product Characteristics Operating Characteristics 1 Operate Time 4.5ms - max. 1 Release Time 2.5ms - max. 2 Shock 11ms 12 sine wave 100G - max. 2 Vibration 50-2000 Hertz 30G - max. Resonant Frequency Hz - typ. 850Hz - typ. Magnetic Characteristics 3 Pull-In Range Ampere Turns 42-83 4 Rating Sensitivity Ampere Turns 60 Test Coil L4988 Notes: 1. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A,diode suppressed coil (Coil IV). 2. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202. 3. Pull-In Range - Contact Littelfuse for narrower AT ranges available. 4. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value. 5. Custom modifications of forming and/or cutting of reed switches are available. Please contact Littelfuse. Drop-Out vs. Pull-In Chart Part Numbering System 50 DRS-50-42-83 40 Max. Min. 30 Series 20 AT Range 42-48 AT Example: 42-53 AT 10 42-83 AT product is 42-83 AT DRS-50-42-83 47-53 AT 0 0 10 20 30 40 50 60 70 80 90 47-58 AT Pull-In (L4988 Coil) 47-68 AT Note: Chart represents the range of Drop-Out, min to max for a given Pull-In value. 57-63 AT 57-68 AT 62-68 AT 62-78 AT 67-73 AT 67-83 AT 77-83 AT 62-73 AT Note: These AT values are the before-modification values of the bare reed switch. 2021 Littelfuse Revised: 02/23/21 littelfuse.com Specifications are subject to change without notice. Drop-Out (L4988 Coil)