Product Details Portlet

D2LS Ultra Subminiature Basic Switch

Compact Surface-mounting Switches ideal for applications requiring long durability High Force type also available

  • High operating force type also achieving long durability
    (OF: 1.2 N, Durability: 5,000,000 operations)
  • Compact size 8.6 × 4.8 × 3.0 mm (W × D × H)
    contributing to down-sizing of module
  • Clear click feeling
  • Embossed taping package for automatic mounting
RoHS Compliant
Model 2D/3D CAD ECAD(Download symbol,FootPrint,3DCAD)
* External site (Ultra Librarian) opens in a new window.
D2LS-11 Download Download
D2LS-21 Download Download
(*) Ultra Librarian uniquely created ECAD data based on the information provided by OMRON. Please note that OMRON does not guarantee the accuracy, concurrence or completeness of ECAD data.
Note: This web page provides an excerpt from a datasheet. Refer to Product Datasheet and other applicable documents for more information.
List of Models
Operating Force (OF) Button color Model Minimum packing unit *
1.2 N {122 gf} WHITE D2LS-11 2,000 pcs.
0.6 N {61 gf} BLUE D2LS-21
* Products are packed with embossed tape.
Contact Form

Rated voltage Resistive load
6 VDC 1mA
Note:   The ratings values apply under the following test conditions:
Ambient temperature: 20± 2º C
Ambient humidity: 65± 5%
Operating frequency: 30 operations/min

operating speed
1 mm to 500 mm/s
operating frequency
Mechanical/Electrical 300 operations/min max.
Insulation resistance
100 MΩ min. (at 500 VDC)
Contact resistance (initial value)
100 mΩ max.
Dielectric Strength
Between terminals of same polarity 600 VAC 50/60 Hz 1 min
Vibration resistance *1
Malfunction 10 to 55 Hz, 1.5 mm double amplitude
Shock resistance *1
Destruction 1,000 m/s2 max.
Malfunction 300 m/s2 max.
Durability *2
Mechanical/Electrical 5,000,000 operations min. (at 30 ops./min.)
Degree of protection
Ambient operating temperature
-25ºC to +85ºC(at 60%RH Max.)(with no icing or condensation)
Ambient operating humidity
85% RH max. (for +5ºC to +35ºC)
Approx. 0.16 g
Note: The data given above are initial values.
  * 1. The values are at Free Position and Total Travel Position values.
Close or open circuit of the contact is 1ms max.
  * 2. For testing conditions, consult your OMRON sales representative.
(Unit: mm)

Pin Plunger
Operating Characteristics
Operating Force OF
Releasing Force RF min.
1.2 ± 0.4 N {122 ± 41 gf}
0.15 N {15 gf}
0.6 ± 0.2 N {61 ± 20 gf}
0.15 N {15 gf}
Overtravel OT min.
Movement Differential MD max.
0.1 mm
0.12 mm
Operating Position OP
Free Position FP
3.2 ± 0.2 mm
3.5 ± 0.2 mm

Note:Unless otherwise specified, a tolerance of ±0.4 mm applies to all dimensions.


Use the Switch within the rated voltage and current ranges, otherwise the Switch may have a shortened durability, radiate heat,or burn out. This particularly applies to the instantaneous voltages and currents when switching.

Correct Use


•General Precautions
Before soldering the Switch on a multilayer PCB, test to confirm that soldering can be performed properly. Otherwise the Switch may be deformed by the soldering heat on the pattern or lands of the multilayer PCB. Do not solder the Switch more than twice, including rectification soldering. An interval of five minutes is required between the first and the second soldering.

•Reflow Soldering (Surface Mounting)
Solder the terminals within the heating curve shown in the following diagram. The peak temperature may vary depending on the reflow bath used. Confirm the conditions beforehand.

•Manual Soldering
Soldering temperature: 350°C max. at the tip of the soldering iron
Soldering time: 3 s max.


The Switch is not sealed, and cannot be washed. Doing so will cause the washing agent, together with flux or dust particles on the PCB, to enter the Switch, resulting in malfunction.

●Application Environment

Do not use the Switch in locations that are subject to toxic gas, silicon, excessive dust, excessive dirt, high temperatures, high humidity, sudden temperature changes, water splashes, or oil splashes. Otherwise, damage resulting by faulty contact of the Switch contacts, corrosion, or other causes, or other functional faults may occur.