littelfuse.com© 2016 Littelfuse Revised: 02/04/16
Specifications are subject to change without notice.
59170 Sub-miniature Overmolded Reed Switch + 57045 Actuator
Description
The 59170 is a sub-miniature overmolded reed switch 11.43mm x 2.29mm x
2.29mm (0.450” x 0.090” x 0.090”) with either straight or Gull Wing leads. It has
normally open contact and capable of switching up to 200Vdc at 10W.
Agency Approvals
Agency Agency File Number
E61760
E471070
DEMKO 14 ATEX 1393U
Overmolded Reed Switches
Features
• Two-part magnetically operated
proximity switch
• Gull Wing, leaded
• Tape and reel option
• Solder reflow capable
• Thermoset overmolded material
• RoHS compliant
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 > 59170
Note: The 57045 Actuator is sold separately.
Leaded
Gull Wing
11.43
(.450)
40.39
(1.590)
1.52
(.060)
0.28
(.011)
11.43
(.450)
16.25
(.640)
1.52
(.060)
Ø 0.43 (.017)
2.29 (.090)
2.29 (.090)
2.29 (.090)
0.127 MAX. (.005)
0.43 (.017)
2.29 (.090)
2.03
(.080)
1.14
(.045)
16.88
(.665)
Note: Contact Littelfuse for specific agency approval ratings.
littelfuse.com© 2016 Littelfuse Revised: 02/04/16
Specifications are subject to change without notice.
59170 Sub-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 3
Switching 2
Breakdown 4
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
Current 3
Switching 2
Carry
Adc - max.
Aac - max.
Adc - max.
0.5
0.35
0.8
Resistance Contact, Initial
Insulation
Ω - max.
Ω - min.
0.1
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. 0.5
Shock 611ms ½ sine G - max. 100
Vibration 650-2000 Hz G - max. 30
Low Power > 59170
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
mm (inch)
Average
Pull-In AT Range
Activate Distance
mm (inch)
Average
Pull-In AT Range
Activate Distance
mm (inch)
Average
1Normally Open 10-15 6.5 (.255) 15-20 5.0 (.197) 20-25 4.6 (.181)
Note:
1. Pull-In AT Range: These AT values are the before molding and modification AT of the 59170.
2. The activation distance is average value post modification for the Gull wing option C or D.
D
Termination Specification
Termination Options
Select Option Description
A Leaded
CGull Wing bulk packed
DGull Wing tape and reel
littelfuse.com© 2016 Littelfuse Revised: 02/04/16
Specifications are subject to change without notice.
Packaging
Packaging Option Packaging Specification Quantity Termination and
Packaging Code Taping Width
Bulk Bulk 59170-1-X-00-A 800/box A N/A
Bulk Bulk 59170-1-X-00-C 1500/box C N/A
Tape and Reel EIA-RS-481-1 1500 D 32.00mm (1.260")
Part Numbering System
Product Marking
59170 - 1 - X - 00 - X
Series
Switch Type
Sensitivity
S, T, or U
Termination &
Packaging
A, C, or D
Overmolded Reed Switches
Low Power > 59170
59170 Sub-miniature Overmolded Reed Switch + 57045 Actuator
57045 - 000
Switch: Actuator:
Series
Standard Actuator
000
Note: The 57045 Actuator is sold separately.
59170-1-X-00-X XXXX
Pa
rt Number
Da
te Code
(YYWW)
