59022, 57022 Datasheet by Littelfuse Inc.

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littelfuse.com© 2018 Littelfuse Revised: 12/18/18
Specifications are subject to change without notice.
59022 Firecracker Reed Sensor + 57022 Actuator
Description
The 59022 Firecracker Reed Sensor is a small cylindrical reed sensor, 25.4mm (L)
x 5.80mm (Dia.) (1.00” x 0.228”), with a choice of normally open, normally closed
or change-over contacts. It is capable of switching up to 200Vdc at 10W.
The 59022 Firecracker Reed Sensor is available with a range of sensitivity and
cable length options. It functions best with the 57022 actuator.
Agency Approvals
Agency Agency File Number
E61760
Reed Sensors
Features
• Magnetically-operated proximity
sensor
• Hermetically sealed contacts
• Operates through non-ferrous
materials such as wood, plastic
or aluminum
Options of normally open, normally
closed or single-pole-double-throw
• Customer-defined sensitivity option
• Custom cable length and connector
options available
Benefits
• Fits nicely into small confined
spaces
• Quick and easy to install
• Well suited for usage in high-
moisture and contaminated
environments
• Non-contact solution, aesthetically
more appealing than push-button or
lever mechanical-type switches
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
Level sensing
• Linear actuators
Dimensions
Dimensions in mm (inch)
Firecracker > 59022
A
Nom. B
Nom. C
Nom.
57022 Actuator 5.80 (.228) 25.40 (1.000) --
59022 Sensor 5.80 (.228) 25.40 (1.000) 300 (11.81)
Note: The 57022 Actuator is sold separately.
Note: Contact Littelfuse for specific agency approval ratings.
A
A
B C
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littelfuse.com© 2018 Littelfuse Revised: 12/18/18
Specifications are subject to change without notice.
59022 Firecracker Reed Sensor + 57022 Actuator
Reed Sensors
Electrical Ratings
Contact Type Normally Open Change Over Normally Closed
Switch Type 1 3 4
Contact Rating 1VA/Watt - max. 10 5 5
Voltage 4Switching 2
Breakdown 3
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
175
120
200
175
120
200
Current 4Switching 2
Carry
Adc - max.
Aac - max.
Adc - max.
0.5
0.35
1.2
0.25
0.18
1.5
0.25
0.18
1.5
Resistance 5Contact, Initial
Insulation Ω - max.
Ω - min. 0.2
1010 0.2
1090.2
109
Capacitance Contact pF - typ. 0.3 0.3 0.3
Temperature Operating °C -40 to +105 -40 to +105 -40 to +105
Product Characteristics
Operate Time 6ms - max. 1.0 3.0 3.0
Release Time 6ms - max. 1.0 3.0 3.0
Shock 711ms 1⁄2 sine G - max. 100 50 50
Vibration 750-2000 Hz G - max. 30 30 30
Firecracker > 59022
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. Leakage current is less than 0.1mA for 60 seconds.
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.
9. Custom sensitivities and a high voltage switch are options
Sensitivity Options (Using 57022 Actuator)
Select Option S T U
Switch Type 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
1Normally Open 12-18 9.6 (.377) 17-23 7.0 (.275) 22-28 5.0 (.197)
3Change Over 15-20 9.3 (.367) 20-25 7.5 (.295) 25-30 6.5 (.256)
4Normally Closed 15-20 9.3 (.367) 20-25 7.5 (.295) 25-30 6.5 (.256)
Schematics Switch Type
1
3
4
Black
Black
Black
Blue
Red
Black
Black
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
59022 X X XX X 57022 000
littelfuse.com© 2018 Littelfuse Revised: 12/18/18
Specifications are subject to change without notice.
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
59022 - X - X - XX - X
Series
Switch Type
1, 3, or 4
Sensitivity
S, T, or U
Termination
A, F, or E
Cable Length
02
57022 - 000Sensor: Actuator:
Series
Standard Actuator
000
Reed Sensors
Firecracker > 59022
59022 Firecracker Reed Sensor + 57022 Actuator
Cable Length Specification
Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569
Select Option Cable Length
mm (inch)
02 300 (11.81)
Termination Specification
Termination Options
Select
Option Description
(Two-wire versions illustrated)
ATinned leads (6.4±0.76)mm
FUntinned leads (6.4±0.76)mm
EJST type XHP 2.5mm pitch
Note: The 57022 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.

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