littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Reed Sensors
Firecracker > 59010
59010 Sub-Miniature Firecracker Reed Sensor + 57020 Actuator
Description
The 59010 Firecracker Reed Sensor is a sub-miniature cylindrical reed sensor
9.0mm L x 3.0mm Dia. (0.354” x 0.118”) with a normally open contact. It is
capable of switching up to 170Vdc at 10W and has cable length and connector
options. It functions best with the 57020-000 actuator.
Features
• Magnetically operated proximity
sensor
• Compact size requires only 3mm
diameter hole
• Hermetically sealed contacts
• Custom cable length and connector
options available
Benefits
• Well suited for usage in high-
moisture and contaminated
environments
• Non-contact solution, aesthetically
more appealing than push-button or
lever mechanical-type switches
• Simple installation and adjustment
• No standby power requirement
• Ideal for battery-powered
applications as the contacts do not
draw power when in the non-
activated state
• Reed contacts last for millions of
operating cycles under micro-
controller logic-level loads
Applications
• Position and Limit Sensing
• Security System Switch
• Level Sensing
• Linear Actuators
Dimensions
Dimensions in mm (inch)
A
Nom.
mm(in)
B
Nom.
mm(in)
C
Nom.
mm(in)
57020 Actuator 5.10 (.201) 15.24 (.600) --
59010 Sensor 3.00 (.118) 9.00 (.354) Cable Length
±10.00 (.393)
Note: The 57020 Actuator is sold separately.
A
A
B C
Sensors
Actuator
littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Reed Sensors
Firecracker > 59010
59010 Sub-Miniature Firecracker Reed Sensor + 57020 Actuator
Electrical Ratings
Contact Type Normally Open
Switch Type 1
Contact Rating 1VA/Watt - max. 5
Voltage 4
Switching 2
Breakdown 3
Vdc - max.
Vac - max.
Vdc - min.
175
140
200
Current 4
Switching 2
Carry
Adc - max.
Aac - max
Adc - max.
0.35
0.25
0.50
Resistance 5Contact, Initial
Insulation
Ω - max.
Ω - min.
0.550
1012
Capacitance Contact pF - typ. 0.45
Temperature Operating °C -40 to +85
Product Characteristics
Operate Time 6ms - max. 0.35
Release Time 6ms - max. 0.03
Shock 711ms ½ sine G - max. 50
Vibration 710-2000 Hz G - max. 10
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 T
Switch Type Pull-In AT Range Activate Distance - D
mm (inch)
Average Pull-In AT Range Activate Distance - D
mm (inch)
Average
1Normally Open 6-10 6.3 (.248) 10-15 4.9 (.193)
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.
D
Sensor Actuator
littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Reed Sensors
Firecracker > 59010
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
59010 - 1 - X - XX - XSensor:
Actuator:
Series
Switch Type
Sensitivity
S or T
Termination
A or F
Cable Length
02
57020 - 000
Series
Standard Actuator
000
59010 Sub-Miniature Firecracker Reed Sensor + 57020 Actuator
Cable Length Specification
(Cable Type 30 AWG 7/38 PTFE 200ºC MIL-W-16878/6)
Select Option Cable Length
mm (inch)
02 300 (11.81)
Termination Options
Select Option Description
ATinned Leads
F Untinned Leads
Note: The 57020 Actuator is sold separately.
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete
Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
