Reed Sensors Firecracker > 59021 59021 Aluminium Miniature Firecracker Reed Sensor + 57020 Actuator Description The 59021 Firecracker Reed Sensor is a miniature cylindrical reed sensor with a robust aluminium body 15.24mm x 5.10mm (0.600 x 0.201) with a normally open contact. It is capable of switching up to 170Vdc at 10W. It has a variety of cable lengths and connector options. It functions best with the 57020-000 actuator. Sensors Note: The 57020 Actuator is sold separately. Features Two-part magnetically operated Customer defined sensitivity option proximity sensor Choice of cable length and Actuator Aluminium body connector Normally open contact Benefits Dimensions Dimensions in mm (inch) Hermetically sealed, magnetically Quick and easy to install operated contacts continue to No standby power requirement operate long after optical and other Operates through non-ferrous 6.35 NOM. (.250) technologies fail due to materials such as wood, plastic or contamination aluminium A A Applications B C Level Sensing Position and Limit Sensing Linear Actuators Security Systems A B C Max. Max. Nom. 57020 Actuator 5.10 (.201) 15.24 (.600) -- 30010.00 59021 Sensor 5.10 (.201) 15.24 (.600) (11.81.393) 2019 Littelfuse Revised: 02/08/19 littelfuse.com Specifications are subject to change without notice.Reed Sensors Firecracker > 59021 59021 Aluminium Miniature Firecracker Reed Sensor + 57020 Actuator Electrical Ratings Contact Type Normally Open Switch Type 1 1 Contact Rating VA/Watt - max. 10 2 Switching Vdc - max. 170 4 Voltage 3 Breakdown Vdc - min. 175 2 Switching Adc - max. 0.25 4 Current Carry Adc - max. 0.5 Contact, Initial - max. 0.2 5 Resistance 10 Insulation - min. 10 Capacitance Contact pF - typ. 0.2 Temperature Operating C -40 to +105 Product Characteristics 6 Operate Time ms - max. 1.0 6 Release Time ms - max. 1.0 7 Shock 11ms 12 sine G - max. 100 7 Vibration 50-2000 Hz G - max. 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. Breakdown Voltage - per MIL-STD-202, Method 301. 4. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load. 5. This resistance value is for 11.81mm wire length. Resistance changes when wire lengthens. 6. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A, diode suppressed coil (Coil II). 7. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202. 8. For custom modifications to the wire length or size, or adding a special connector, please contact Littelfuse. Sensitivity Options (Using 57020 Actuator) Select Option S Activate Distance D Switch Type Pull-In AT Range mm (inch) Average 1 Normally Open 6-10 6.0 (.236) Note: 1. Pull-In AT Range: These AT values are the bare reed switch AT before modification. 2. The activation distance is average value on the final sensor assembly. Sensor Actuator D 2019 Littelfuse Revised: 02/08/19 littelfuse.com Specifications are subject to change without notice.