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 also has a variety range of sensitivity, cable length and connector options. It functions best with the 57020-000 actuator. Note: The 57020 Actuator is sold separately. Features • Two-part magnetically operated proximity sensor • Aluminium body • Normally open contact Dimensions Benefits Dimensions in mm (inch) • Hermetically sealed, magnetically operated contacts continue to operate long after optical and other technologies fail due to contamination 6.35 NOM. (.250) A A B • Quick and easy to install • No standby power requirement • Operates through non-ferrous materials such as wood, plastic or aluminium Applications C A Max. B Max. C Nom. 57020 Actuator 5.10 (.201) 15.24 (.600) -- 59021 Sensor 5.10 (.201) 15.24 (.600) 300±10.00 (11.81±.393) © 2015 Littelfuse Revised: 10/27/15 Specifications are subject to change without notice. • Customer defined sensitivity option • Choice of cable length and connector • Position and Limit Sensing • Security Systems • Level Sensing • Linear Actuators littelfuse.com Reed Sensors Firecracker > 59021 59021 Aluminium Miniature Firecracker Reed Sensor + 57020 Actuator Electrical Ratings Contact Type Normally Open Switch Type 1 Contact Rating Voltage 1 Switching 4 10 Vdc - max. 170 Vdc - min. 175 2 Breakdown 3 Adc - max. 0.25 Carry Adc - max. 0.5 Contact, Initial Ω - max. 0.2 Insulation Ω - min. 1010 Capacitance Contact pF - typ. 0.2 Temperature Operating °C -40 to +105 Current Switching VA/Watt - max. 4 Resistance 5 2 Product Characteristics Operate Time 6 ms - max. 1.0 Release Time 6 ms - max. 1.0 11ms 1⁄2 sine G - max. 100 50-2000 Hz G - max. 30 Shock 7 Vibration 7 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 Switch Type 1 S T Pull-In AT Range Activate Distance mm (inch) Average Pull-In AT Range Activate Distance mm (inch) Average 6-10 6.0 (.236) 10-15 4.5 (.177) Normally Open 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 © 2015 Littelfuse Revised: 10/27/15 Specifications are subject to change without notice. littelfuse.com Reed Sensors Firecracker > 59021 59021 Aluminium Miniature Firecracker Reed Sensor + 57020 Actuator Part Numbering System Cable Length Specification Cable Type: 26 AWG 7/34 PVC 105°C UL1430/UL1569 Select Option Cable Length mm (inch) 02 300 (11.81) Sensor: 59021 - 1 - X - XX - X Series Switch Type Termination Specification Sensitivity S or T Termination Options Select Option Cable Length 02 Description (Two-wire versions illustrated) A Tinned leads (6.4±0.76)mm F Untinned leads (6.4±0.76)mm E JST type XHP 2.5mm pitch Termination A, F, or E Actuator: 57020 - 000 Series Standard Actuator 000 Note: The 57020 Actuator is sold separately. Packaging Packaging Option Packaging Specification Bulk © 2015 Littelfuse Revised: 10/27/15 Specifications are subject to change without notice. Bulk Quantity 500 Quantity & Packaging Code N/A Taping Width N/A littelfuse.com