Overmolded Reed Switches
Low Power > 59166
59166 Miniature Overmolded Reed Switch + 57045 Actuator
Description
The 59166 is a miniature overmolded reed switch 16.00mm x 2.40mm x 2.40mm
(0.630” x 0.094” x 0.094”) with Gull Wing leads. It has normally open contact,
capable of switching up to 200Vdc at 10W.
Note: The 57045 Actuator is sold separately.
Features
• Two-part magnetically operated
proximity switch
• Gull Wing Leads
• Tape and reel option
• Solder reflow capable
• Thermoset overmolded material
• RoHS Compliant
• ATEX certified for use in European
explosive atmospheres:
II 3 G
Ex nC IIC Gc
• Certified for use in North American
Hazardous Locations: Class I,
Division 2 and Zone 2
Agency Approvals
Agency
Agency File Number
E61760 and E471070
DEMKO 14 ATEX 1393U
II 3 G Ex nC IIC Gc
Note: Contact Littelfuse for specific agency approval ratings.
Benefits
• Suitable for pick and place
• No standby power requirement
• Operates through non-ferrous
materials such as wood, plastic or
aluminium
• Hermetically sealed, magnetically
operated contacts continue to
operate long after optical and other
technologies fail due to
contamination
Applications
• Position and Limit Sensing
• Security System Switch
• Door Switch
Dimensions
Dimensions in mm (inch)
2x 0.89
(0.035)
16.00 MAX.
(0.630)
2x 0.89
(0.035)
2.51
(0.099)
19.51
(0.768)
2.40
(0.094)
2.51
(0.099)
Soldering Footprint
Dimensions in mm (inch)
1.50
(0.059)
2.00
(0.079)
20.20
(0.795)
© 2016 Littelfuse
Revised: 04/08/16
Specifications are subject to change without notice.
littelfuse.com
Overmolded Reed Switches
Low Power > 59166
59166 Miniature Overmolded Reed Switch + 57045 Actuator
Electrical Ratings
Contact Type
Switch Type
Contact Rating
Voltage
3
1
Normally Open
1
VA/Watt - max.
Switching
2
10
200
140
250
0.5
0.35
0.8
0.2
10
10
0.3
-40 to +105
Breakdown
3
4
Vdc - max.
Vac - max.
Vdc - min.
Adc - max.
Aac - max.
Adc - max.
Ω - max.
Ω - min.
pF - typ.
°C
Current
Switching
Carry
2
Resistance
Capacitance
Temperature
Contact, Initial
Insulation
Contact
Operating
Product Characteristics
Operate Time
Release Time
Shock
6
6
5
5
ms - max.
ms - max.
11ms 1⁄2 sine
50-2000 Hz
G - max.
G - max.
1.0
1.0
100
30
Vibration
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. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A, diode suppressed coil (Coil II).
6. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202.
Sensitivity Options (Using 57045 Actuator)
Select Option
Switch Type
Pull-In AT
Range
S
Activate Distance, D
mm (inch)
Average
Pull-In AT
Range
T
Activate Distance, D
mm (inch)
Average
Pull-In AT
Range
U
Activate Distance, D
mm (inch)
Average
1
Normally Open
10-15
7.4 (.292)
15-20
6.1 (.240)
20-25
5.1 (.201)
Note:
1. Pull-In AT Range: These AT values are the before molding and modification AT of the 59166.
2. The activation distance is average value post modification for the Gull wing option C or D.
Termination Specification
Termination Options
Select Option
C
D
Description
Gull Wing bulk packed
Gull Wing tape and reel
Switch
Actuator
D
© 2016 Littelfuse
Revised: 04/08/16
Specifications are subject to change without notice.
littelfuse.com
Overmolded Reed Switches
Low Power > 59166
59166 Miniature Overmolded Reed Switch + 57045 Actuator
Part Numbering System
Switch:
59166 - 1 - X - 00 - X
Actuator:
57045 - 000
Series
Switch Type
Sensitivity
S, T, or U
Termination and
Packaging
C, or D
Series
Standard Actuator
000
Note: The 57045 Actuator is sold separately.
Product Marking
59166-1-X-00-X
Part Number
Date Code
(YYWW)
XXXX
Packaging
Packaging Option
Bulk
Tape and Reel
Packaging Specification
Bulk
EIA-RS-481-1
Quantity
1500
1500
Quantity and Packaging Code
B
R
Taping Width
N/A
32.00/(1.260)
© 2016 Littelfuse
Revised: 04/08/16
Specifications are subject to change without notice.
littelfuse.com
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