littelfuse.com© 2018 Littelfuse Revised: 12/18/18
Specifications are subject to change without notice.
59165 Miniature Overmolded Reed Switch + 57045 Actuator
Description
The 59165 is a miniature overmolded reed switch 16.00mm x 2.40mm x
2.40mm(0.630” x 0.095” x 0.095”) with either straight or Gull Wing leads. It has
normally open contact, capable of switching up to 200Vdc at 10W.
Agency Approvals
Agency Agency File Number
E61760
e471070
DEMKO 14 ATEX 1393U
II 3 G Ex nC IIC Gc
Overmolded Reed Switches
Features
• Two-part magnetically operated
proximity switch
• Gull Wing, leaded and staple form
options
• Tape and reel option
• RoHS Compliant
• Solder reflow capable
• Thermoset overmolded material
• 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
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)
Soldering Footprint
Dimensions in mm (inch)
Low Power > 59165
Note: The 57045 Actuator is sold separately.
Leaded Staple Form Gull Wing
40.39
(1.590)
16.00
(.630)
16.00
(.630)
2.40
(.095)
2.40
(.095) 2.40
(.095)
2.51
(.099)
20.18
(.795)
16.00
(.630)
2.40
(.095)
20.20
(.795)
17.01
(.670)
0.47
Ø(.0185)
0.47
Ø(.0185)
3.30
(.130)
2.40
(.095)
2.40
(.095)
1.14
(.045)
2.03
(.080)
20.83
(.820)
Note: Contact Littelfuse for specific agency approval ratings.
littelfuse.com© 2018 Littelfuse Revised: 12/18/18
Specifications are subject to change without notice.
59165 Miniature Overmolded Reed Switch + 57045 Actuator
Overmolded Reed Switches
Electrical Ratings
Contact Type Normally Open
Switch Type 1
Contact Rating 1VA/Watt - max. 10
Voltage 3Switching 2
Breakdown 4
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
Current 3Switching 2
Carry
Adc - max.
Aac - max.
Adc - max.
0.5
0.35
0.8
Resistance Contact, Initial
Insulation Ω - max.
Ω - min. 0.2
1010
Capacitance Contact pF - typ. 0.3
Temperature Operating °C -40 to +105
Product Characteristics
Operate Time 5ms - max. 1.0
Release Time 5ms - max. 1.0
Shock 611ms ½ sine G - max. 100
Vibration 650-2000 Hz G - max. 30
Low Power > 59165
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 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 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 59165.
2. The activation distance is average value post modification for the Gull wing option C or D.
Switch Actuator
D
Termination Specification
Termination Options
Select Option Description
A Leaded
BStaple form
CGull Wing bulk packed
DGull Wing tape and reel
littelfuse.com© 2018 Littelfuse Revised: 12/18/18
Specifications are subject to change without notice.
Packaging
Packaging Option Packaging Specification Quantity Quantity and Packaging Code Taping Width
Bulk Bulk 800/box 59165-1-X-00-A N/A
Bulk Bulk 1500/box 59165-1-X-00-C N/A
Tape and Reel EIA-RS-481-1 1500 R 32.00/(1.260)
Part Numbering System
59165 - 1 - X - 00 - X Actuator:Switch:
Series
Switch Type
Sensitivity
S, T, or U
Termination &
Packaging
A, B, C, or D
57045 - 000
Series
Standard Actuator
000
Overmolded Reed Switches
Low Power > 59165
59165 Miniature Overmolded Reed Switch + 57045 Actuator
Note: The 57045 Actuator is sold separately.
Product Marking
59165-1-X-00-X XXXX
Pa
rt Number
Da
te Code
(YYWW)
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.
